19,285 results match your criteria Journal of colloid and interface science[Journal]


Efficient biofunctionalization of MoS nanosheets with peptides as intracellular fluorescent biosensor for sensitive detection of caspase-3 activity.

J Colloid Interface Sci 2019 Feb 4;543:96-105. Epub 2019 Feb 4.

Key Laboratory for Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Centre for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China. Electronic address:

Intracellular detection of caspase-3 activity is crucial for the study of cell apoptosis and caspase-3 related diseases. Although various nanomaterials-based biosensors have been constructed for this purpose, they often suffer from poor stability or complicated construction due to the lack of a facile and efficient biofunctionalization method, which decreases their sensing performance and limits their use in the complex physiological environments. As novel two-dimentional (2D) nanomaterials, MoS nanosheets (NSs) have shown great potential for biosensing due to their unique properties. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.011DOI Listing
February 2019

Bifunctional oxygen electrocatalyst derived from photochlorinated graphene for rechargeable solid-state Zn-air battery.

J Colloid Interface Sci 2019 Feb 14;543:84-95. Epub 2019 Feb 14.

School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, People's Republic of China; Key Lab of Microsystem and Microstructure of Ministry of Education, Harbin Institute of Technology, Harbin 150080, People's Republic of China. Electronic address:

Photochlorination method was used to engineer the structural defects and covalent CCl bonds in graphene. Cl coverage of 18 atom% was successfully confirmed by X-ray photoelectron spectroscopy, and D, G and 2D peaks changes upon irradiation were monitored by Raman. The mobility of chlorinated graphene field-effect transistor decreased to 66. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.044DOI Listing
February 2019

Enhanced removal of ciprofloxacin using humic acid modified hydrogel beads.

J Colloid Interface Sci 2019 Jan 31;543:76-83. Epub 2019 Jan 31.

Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China. Electronic address:

In this study, humic acid coated biochar (HA-BC) and chitosan were combined to prepare an adsorbent with enhanced reactivity for the removal of ciprofloxacin (CIP). With initial CIP concentrations of 250 mg/L, the maximum adsorbed amount was 154.89 mg/g. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.083DOI Listing
January 2019

Depinning force of a receding droplet on pillared superhydrophobic surfaces: Analytical models.

J Colloid Interface Sci 2019 Feb 13;543:122-129. Epub 2019 Feb 13.

Department of Mechanical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA. Electronic address:

It was experimentally shown that a depinning force of a receding droplet on a micropillared superhydrophobic surface has an apparently linear correlation with the maximal three-phase contact line attainable along an actual droplet boundary. However, the experimental observation has not yet been supported by any theoretical basis or analysis. This study establishes an analytical model that theoretically supports the experimental observation on the basis of the dynamics of a contact line. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.042DOI Listing
February 2019

Multifunctional ZnO NPs-chitosan-gallic acid hybrid nanocoating to overcome contact lenses associated conditions and discomfort.

J Colloid Interface Sci 2019 Feb 13;543:114-121. Epub 2019 Feb 13.

Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222 Terrasa, Spain. Electronic address:

Contact lenses (CL) provide visual correction but their use may also induce several adverse effects causative of discomfort and conditions that lead to stop or discontinue their use. Discomfort is mainly caused by insufficient wetting, impairment of the antioxidant defence system and eye infections. The current work reports on a single step sonochemical coating of CL with ZnO nanoparticles (NPs), chitosan (CS) and gallic acid (GA). Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.043DOI Listing
February 2019

Study of the electrostatic jet initiation in near-field electrospinning.

J Colloid Interface Sci 2019 Feb 13;543:106-113. Epub 2019 Feb 13.

Mechanical and Aerospace Engineering, University of California, Irvine, CA 92617, USA. Electronic address:

Hypothesis: The electrostatic initiation of a jet from the meniscus of a polymeric solution is a key step in near-field electrospinning (NFES), however this process is not sufficiently understood to determine a criterion for the critical emitter voltage triggering the jet, nor to optimize the electrodes. It is expected that the jet initiation in NFES is similar to that in cone-jet electrosprays, and can be described with a first principles model.

Experiments: The electrostatic jet initiation of an SU-8 polymeric solution is studied with two different electrode geometries to quantify the initiation parameters and illustrate the optimization of the electric field. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.041DOI Listing
February 2019

Fabrication of hydrophilic and antibacterial poly(vinylidene fluoride) based separation membranes by a novel strategy combining radiation grafting of poly(acrylic acid) (PAA) and electroless nickel plating.

J Colloid Interface Sci 2019 Feb 6;543:64-75. Epub 2019 Feb 6.

College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China. Electronic address:

This study proposed a novel strategy to improve performance of inherently hydrophobic poly(vinylidene fluoride) (PVDF) membrane. The proposed strategy combined radiation grafting of poly(acrylic acid) (PAA) and electroless nickel plating. After a 5 min plating by using this modification strategy, the water contact angle of the modified membrane decreased from 75. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.013DOI Listing
February 2019

Water-born zirconium-based metal organic frameworks as green and effective catalysts for catalytic transfer hydrogenation of levulinic acid to γ-valerolactone: Critical roles of modulators.

J Colloid Interface Sci 2019 Feb 11;543:52-63. Epub 2019 Feb 11.

Department of Environmental Engineering, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan; Research Center of Sustainable Energy and Nanotechnology, and Innovation, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan; Development Center of Sustainable Agriculture, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan. Electronic address:

While zirconium (Zr)-based metal organic frameworks (MOFs) are promising for conversion of levulinic acid (LA) to γ-valerolactone (GVL) through catalytic transform hydrogenation (CTH), these reported Zr MOFs for LA conversion must be synthesized in toxic dimethylformamide (DMF). From the viewpoint of sustainability, it is preferable to avoid usage of DMF-based solvents to prepare these Zr MOFs. As water is a green solvent, the aim of this study is to develop and investigate Zr MOFs, which are prepared in water, for LA conversion to GVL. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.036DOI Listing
February 2019

Efficient removal of methylene blue from aqueous solutions using magnetic graphene oxide modified zeolite.

J Colloid Interface Sci 2019 Feb 10;543:43-51. Epub 2019 Feb 10.

College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.

In this study, magnetic graphene oxide modified zeolite (Cu-Z-GO-M) composites with two different ratios of GO to zeolite (named Cu-Z-GO-M 1:2 and Cu-Z-GO-M 1:1) were synthesized by solid-state dispersion (SSD) method. The properties of zeolite-based composites were characterized by SEM, XRD, FTIR, XPS, and magnetization curves. In order to understand the pollutant removal performance of the as-prepared composites, methylene blue (MB) was used as the target pollutant in adsorption experiments. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.030DOI Listing
February 2019

Morphology evolution of Janus dumbbell nanoparticles in seeded emulsion polymerization.

J Colloid Interface Sci 2019 Jan 25;543:34-42. Epub 2019 Jan 25.

Department of Materials Science and Engineering, Iowa State University of Science and Technology, Ames, IA 50011, USA; Division of Materials Science & Engineering, Ames National Laboratory, Ames, IA 50011, USA. Electronic address:

Emulsion polymerization is a versatile approach to produce different polymeric nanoparticle morphologies, which can be useful in a variety of applications. However, the detailed mechanism of the morphology formation is not entirely clear. We study the kinetics of nanoparticle morphology evolution during a seeded emulsion polymerization using both experimental and computational tools. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.109DOI Listing
January 2019

Construction of Ag/AgCl-CN heterojunctions with enhanced photocatalytic activities for degrading contaminants in wastewater.

J Colloid Interface Sci 2019 Feb 1;543:25-33. Epub 2019 Feb 1.

State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China. Electronic address:

The non-metallic organic polymer carbon nitride has attracted widespread attentions, but its photocatalytic performance is unsatisfactory due to high recombination of photoinduced carriers. To solve this issue, we report Ag/AgCl-decorated carbon nitride (CN) nanorod heterojunctions as efficient and stable photocatalyst. CN nanorods (diameter: ∼25 nm; lengths: 1-1. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.133DOI Listing
February 2019

Polypropylene crystallization at an alumina interface using single walled carbon nanotubes.

J Colloid Interface Sci 2019 Feb 7;543:9-16. Epub 2019 Feb 7.

Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, United States. Electronic address:

Interfaces play an important and often limiting role in the mechanical, thermal, and electrical performance of composite materials. Here we suggest a novel method to improve the interfacial interaction in polypropylene-alumina composites using single-walled carbon nanotubes (SWNTs) to nucleate lamellar crystals at the interface. Macroscopic alumina substrates are used to determine the ideal crystallization parameters and investigate the kinetics of crystal growth. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.020DOI Listing
February 2019

One-pot solvothermal synthesis of reduced graphene oxide-supported uniform PtCo nanocrystals for efficient and robust electrocatalysis.

J Colloid Interface Sci 2019 Jan 28;543:17-24. Epub 2019 Jan 28.

Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China. Electronic address:

Pt-based nanocomposites with low Pt utilization and high-activity by incorporating with other transition metals have received significant interest in catalysis. Meanwhile, loading Pt-based catalysts on graphene has great research value for improved stability and dispersity of the catalysts. Herein, a facile l-proline-mediated solvothermal strategy was reported to construct reduced graphene oxide (rGO) supported sheet-like PtCo nanocrystals (PtCo NCs/rGO) in ethylene glycol (EG). Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.110DOI Listing
January 2019
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One-pot aqueous synthesis of two-dimensional porous bimetallic PtPd alloyed nanosheets as highly active and durable electrocatalyst for boosting oxygen reduction and hydrogen evolution.

J Colloid Interface Sci 2019 Jan 29;543:1-8. Epub 2019 Jan 29.

Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China. Electronic address:

Recently, two-dimensional materials have gained increasing research attention due to their large surface area, high physical and chemical stability, and excellent electrocatalytic performances. Herein, we reported a simple and fast one-pot aqueous method for synthesis of two-dimensional porous bimetallic PtPd alloyed nanosheets (NSs) using benzyldimethylhexadecylammonium chloride (HDBAC) as the capping agent and stabilizer. The formation mechanism involved the oriented attachment and self-assembly. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.122DOI Listing
January 2019

Macromolecular inversion-driven polymer insertion into model lipid bilayer membranes.

J Colloid Interface Sci 2019 Jan 30;542:483-494. Epub 2019 Jan 30.

School of Chemical Sciences, Dublin City University, Dublin 9, Ireland. Electronic address:

Macromolecules of amphiphilic invertible polymers (AIPs) are capable of self-assembly into micellar assemblies of various morphologies in solvents of different polarities. The micellar assemblies in aqueous media are capable of encapsulating poorly aqueous soluble cargo and can undergo inverse conformational change and cargo release in contact with non-polar media, including potentially, cell membranes. Thus, invertible micellar assemblies have significant potential in drug delivery and related domains. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.093DOI Listing
January 2019

Wrapped stellate silica nanocomposites as biocompatible luminescent nanoplatforms assessed in vivo.

J Colloid Interface Sci 2019 Jan 23;542:469-482. Epub 2019 Jan 23.

Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR-7504, CNRS-Université de Strasbourg, 23 rue du Loess, BP 34 67034, Strasbourg Cedex 2, France. Electronic address:

The engineering of luminescent nanoplatforms for biomedical applications displaying ability for scaling-up, good colloidal stability in aqueous solutions, biocompatibility, and providing an easy detection in vivo by fluorescence methods while offering high potential of functionalities, is currently a challenge. The original strategy proposed here involves the use of large pore (ca. 15 nm) mesoporous silica (MS) nanoparticles (NPs) having a stellate morphology (denoted STMS) on which fluorescent InP/ZnS quantum dots (QDs) are covalently grafted with a high yield (≥90%). Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.098DOI Listing
January 2019

Environmentally benign synthesis of CoO-SnO heteronanorods with efficient photocatalytic performance activated by visible light.

J Colloid Interface Sci 2019 Jan 22;542:460-468. Epub 2019 Jan 22.

School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China. Electronic address:

One-dimensional (1D) heterostructured photocatalysts with controllable texture properties and compositions have attracted increasing interest owing to their unique optical, structural, and electronic advantages. Herein, 1D CoO-SnO heteronanorods were rationally designed and synthesized through a facile solution-based approach. Benefiting from both of their heterostructural and compositional characteristics, the resulting CoO-SnO heteronanorods exhibit high photocatalytic performance for the degradation of Rhodamine B (RhB) under visible-light irridation. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.089DOI Listing
January 2019

Tailoring surface states by sequential doping of Ti and Mg for kinetically enhanced hematite photoanode.

J Colloid Interface Sci 2019 Feb 10;542:441-450. Epub 2019 Feb 10.

Institute for Clean Energy & Advanced Materials, Southwest University, Chongqing 400715, PR China; Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou 215009, PR China; Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Electrical Power Sources, Chongqing 400715, PR China. Electronic address:

Hematite (α-FeO) is the most promising photoanode with a high theoretical photocurrent of 12.6 mA cm. However, the photocurrent of FeO achieved now is far below its theoretical value, which is mainly due to its poor electronic conductivity and sluggish water oxidation kinetics. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.034DOI Listing
February 2019
3.368 Impact Factor

Electrochemically modified graphite for fast preparation of large-sized graphene oxide.

J Colloid Interface Sci 2019 Feb 8;542:387-391. Epub 2019 Feb 8.

State Key Laboratory of Functional Materials for Informatics, CAS Center for Excellence in Superconducting Electronics (CENSE), Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, PR China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, PR China. Electronic address:

Large-sized graphene oxide (LGO) is desirable for many graphene-based applications. Herein, for the first time, we synthesized LGO (83 µm average size) using electrochemically modified graphite as the precursor. With this strategy, we could reduce both the oxidation time (1 h) and oxidant dosage (2 equiv. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.029DOI Listing
February 2019

A tri-functionalised PtSnO-based electrocatalyst for hydrogen generation via ammonia decomposition under native pH conditions.

J Colloid Interface Sci 2019 Jan 22;542:451-459. Epub 2019 Jan 22.

Applied Technology Promotion Center of Chongqing Education Committee For Chemical Pollution Prevention and Control, Chongqing Industry Polytechnic College, Chongqing 401120, PR China.

Hydrogen is one of the most clean energy carriers because water is only the product of its combustion. The electrolysis of ammonia is expected to offer an attractive alternative to water electrolysis for the production of hydrogen because of the lower thermodynamic energy. However, the synthesis and utilization of high-performance Pt electrocatalysts have encountered challenges related to instability and hydroxyl ion sensitivity. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.085DOI Listing
January 2019

Distinguishing characteristics and usability of graphene oxide based on different sources of graphite feedstock.

J Colloid Interface Sci 2019 Feb 7;542:429-440. Epub 2019 Feb 7.

Gas Processing Centre, Qatar University, P.O. Box 2713, Doha, Qatar.

Graphene oxide (GO) has gained popularity in scientific research and industry due to its superior properties, which can be controlled by the synthesis method and graphite feedstock. Despite the availability of different graphite sources, most of the reported studies used natural graphite flake (NGF) as a source of oxidation for GO synthesis. The effect of various alternative graphite feedstocks on the GO properties has not been investigated systematically. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.023DOI Listing
February 2019

Adsorption of cerium (III) by HKUST-1 metal-organic framework from aqueous solution.

J Colloid Interface Sci 2019 Jan 31;542:421-428. Epub 2019 Jan 31.

Fushun Research Institute of Petroleum and Petrochemicals, SINOPEC, Fushun 113001, China.

Cerium is an important rare earth element (REE), which can be used for many high-tech applications. From the industrial and environmental viewpoints, it is imperative to recover Ce ions from aqueous solution. Herein, HKUST-1 metal-organic framework (MOF) was applied for adsorption and recovery of Ce from aqueous solution. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.117DOI Listing
January 2019
1 Read

Exploration of the adsorption performance and mechanism of zeolitic imidazolate framework-8@graphene oxide for Pb(II) and 1-naphthylamine from aqueous solution.

J Colloid Interface Sci 2019 Feb 11;542:410-420. Epub 2019 Feb 11.

CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei 230031, PR China; NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia. Electronic address:

A novel composite of zeolitic imidazolate framework grown on graphene oxide (ZIF-8@GO) was successfully prepared and used for the adsorption of Pb(II) and 1-naphthylamine from aqueous solutions. The effects of contact time, pH, ionic strength and temperature on the adsorption performance of ZIF-8@GO was investigated by batch experiments. Compared to the bare ZIF-8 and GO, the ZIF-8@GO exhibited a significant increase in the adsorption for Pb(II) and 1-naphthylamine. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.039DOI Listing
February 2019

Nitrogen self-doped porous carbon with layered structure derived from porcine bladders for high-performance supercapacitors.

J Colloid Interface Sci 2019 Feb 7;542:400-409. Epub 2019 Feb 7.

School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China. Electronic address:

Nitrogen-doped layered porous carbon has been successfully fabricated from the biomass of porcine bladders via carbonization and KOH activation. The effects of KOH dosage on the structure, composition and capacitive property of carbon were investigated by a variety of means (SEM, HRTEM, XRD, Raman, XPS, BET and electrochemical test). Owing to the unique layered structure and rich heteroatom content of porcine bladders, the sample obtained at a KOH/carbon mass ratio of 2 were endowed with appropriate pore structure, large specific surface area (1881. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.024DOI Listing
February 2019

Nitrogen-doped carbon dots decorated ultrathin nickel hydroxide nanosheets for high-performance hybrid supercapacitor.

J Colloid Interface Sci 2019 Feb 11;542:392-399. Epub 2019 Feb 11.

School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.

Owing to their unique electronic properties and capability to host diverse functional groups on the surface, carbon dots (CDs) have attracted increasing attention in energy storage field. Herein, ultrathin nitrogen-doped carbon dots (NCDs) decorated nickel hydroxide (Ni(OH)) nanosheets were fabricated by a facile hydrothermal approach, where NCDs play an important role as a structure-directing agent in tuning the size and thickness of the Ni(OH). With the merits of the battery-type faradaic behavior of Ni(OH) and high electronic properties of NCDs, the achieved Ni(OH)/NCDs ultrathin nanosheets show a specific capacitance of about 1711. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.037DOI Listing
February 2019
1 Read

Efficient and rapid removal of EDTA-chelated Pb(II) by the Fe(III)/flue gas desulfurization gypsum (FGDG) system.

J Colloid Interface Sci 2019 Jan 31;542:379-386. Epub 2019 Jan 31.

Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China. Electronic address:

This study introduces the application of the Fe(III)/flue gas desulfurization gypsum (FGDG) system to remove EDTA-chelated Pb(II). Systematic experiments were conducted to explore the possibility of removing EDTA-chelated Pb(II) and the crucial factors of the removal process, as well as to determine the underlying removal mechanism. The results showed that the removal reaction was a quick process, with the removal rate exceeding 90% after 1 min. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.129DOI Listing
January 2019

Ultrafast microfluidic synthesis of hierarchical triangular silver core-silica shell nanoplatelet toward enhanced cellular internalization.

J Colloid Interface Sci 2019 Feb 7;542:370-378. Epub 2019 Feb 7.

Thayer School of Engineering, Dartmouth College, 14 Engineering Drive, Hanover, NH 03755, United States. Electronic address:

Microfluidic reactors represent a new frontier in the rational design and controllable synthesis of functional micro-/nanomaterials. Herein, we develop a continuous and ultrafast flow synthesis method to obtain triangular silver (tAg) nanoplatelet using a short range two-loop spiral-shaped laminar flow microfluidic reactor, with one inlet flow containing AgNO, trisodium citrate, and HO and the other NaBH. The effect of the reactant concentration and flow rate on the structural changes of tAg is examined. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.021DOI Listing
February 2019

Rotational diffusion of partially wetted colloids at fluid interfaces.

J Colloid Interface Sci 2019 Feb 6;542:363-369. Epub 2019 Feb 6.

Laboratoire Charles Coulomb (L2C), University of Montpellier, CNRS, Montpellier, France.

Hypothesis: Rotational Brownian diffusions of colloidal particles at a fluid interface play important roles in particle self-assembly and in surface microrheology. Recent experiments on translational Brownian motion of spherical particles at the air-water interface show a significant slowing down of the translational diffusion with respect to the hydrodynamic predictions (Boniello et al., 2015). Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.017DOI Listing
February 2019

One-step preparation of molybdenum disulfide/graphene nano-catalysts through a simple co-exfoliation method for high-performance electrocatalytic hydrogen evolution reaction.

J Colloid Interface Sci 2019 Feb 7;542:355-362. Epub 2019 Feb 7.

Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, PR China. Electronic address:

Hypothesis: Recently, molybdenum disulfide (MoS) as a new type of catalyst, has been used for hydrogen evolution. In order to overcome the shortcomings of MoS, such as poor conductivity and lack of catalytic activity sites, various materials were added to prepare composites, such as graphene with good conductivity.

Experiments: In this work, we combined MoS with graphene through a very simple liquid-phase salt-assisted co-exfoliation method. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.018DOI Listing
February 2019

High-resolution label-free studies of molecular distribution and orientation in ultrathin, multicomponent model membranes with infrared nano-spectroscopy AFM-IR.

J Colloid Interface Sci 2019 Feb 6;542:347-354. Epub 2019 Feb 6.

Jagiellonian University, Faculty of Chemistry, Gronostajowa 2, 30-387 Kraków, Poland.

Biological membranes are undoubtedly very interesting systems. Unfortunately, their analysis is very complicated and therefore simplified artificial models, like Langmuir monolayers, are frequently applied. In this work a novel method of label-free monomolecular films analysis based on infrared nano-spectroscopy (AFM-IR) is presented. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.016DOI Listing
February 2019
1 Read

Long-term creep deformations in colloidal calcium-silicate-hydrate gels by accelerated aging simulations.

J Colloid Interface Sci 2019 Feb 7;542:339-346. Epub 2019 Feb 7.

Physics of AmoRphous and Inorganic Solids Laboratory (PARISlab), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, USA. Electronic address:

When subjected to a sustained load, jammed colloidal gels can feature some delayed viscoplastic creep deformations. However, due to the long timescale of creep (up to several years), its modeling and, thereby, prediction has remained challenging. Here, based on mesoscale simulations of calcium-silicate-hydrate gels (CSH, the binding phase of concrete), we present an accelerated simulation method-based on stress perturbations and overaging-to model creep deformations in CSH. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.022DOI Listing
February 2019
1 Read

Nickel molybdate nanorods supported on three-dimensional, porous nickel film coated on copper wire as an advanced binder-free electrode for flexible wire-type asymmetric micro-supercapacitors with enhanced electrochemical performances.

J Colloid Interface Sci 2019 Feb 7;542:325-338. Epub 2019 Feb 7.

Department of Chemistry, Sharif University of Technology, Tehran 11155-9516, Iran; Institute for Nanoscience and Technology, Sharif University of Technology, Tehran, Iran. Electronic address:

Wire-shaped micro-supercapacitors attracted extensive attentions in next-generation portable and wearable electronics, due to advantages of miniature size, lightweight and flexibility. Herein, NiMoO nanorods supported on Ni film coated Cu wire are successfully fabricated thorough direct deposition of Ni film onto Cu wire as the conductive substrate, followed by growth of the NiMoO nanorods on Ni film coated Cu wire substrate by means a hydrothermal annealing process. The prepared 3D, porous electrode demonstrates extremely high areal specific capacitance of 12. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.019DOI Listing
February 2019

Ultrasmall self-assembly poly(N-isopropylacrylamide-butyl acrylate) (polyNIPAM-BA) thermoresponsive nanoparticles.

J Colloid Interface Sci 2019 Feb 2;542:317-324. Epub 2019 Feb 2.

Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland. Electronic address:

Reported poly(N-isopropylacrylamide) (poly(NIPAM)) thermoresponsive systems do not preserve their structure and shape regardless applied temperature. Poly(NIPAM) modified with lipophilic units of butylacrylate (BA) is expected to form spontaneously nanospheres stable at a broad range of temperature. Moreover, it should be possible to introduce solvatochromic dyes to the spheres for optical evaluation of the system and designing thermometers at the nanoscale. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00219797193016
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http://dx.doi.org/10.1016/j.jcis.2019.02.004DOI Listing
February 2019
1 Read

Multifunctional spiky branched gold-silver nanostars with near-infrared and short-wavelength infrared localized surface plasmon resonances.

J Colloid Interface Sci 2019 Feb 7;542:308-316. Epub 2019 Feb 7.

Department of Energy and Materials Engineering, Dongguk University, Seoul, Republic of Korea. Electronic address:

We report a one-pot seedless green method for the synthesis of gold-silver (AuAg) spiky branched nanostars, with gold (90%) being the major component. Here, the zwitterionic surfactant lauryl sulfobetaine (LSB) is employed in the synthesis of bimetallic nanostars. The concentration of LSB plays an important role in determining the shape of nano-objects. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.132DOI Listing
February 2019

Photocatalytic activity of SnO-TiO composite nanoparticles modified with PVP.

J Colloid Interface Sci 2019 Feb 7;542:296-307. Epub 2019 Feb 7.

National Institute for R &D of Isotopic and Molecular Technology, 67 - 103 Donat St., 400293 Cluj-Napoca, Romania.

Interface modified SnO-TiO composite nanoparticles were produced in two stages: first SnO nanoparticles were prepared by chemical precipitation in the presence of polyvinylpyrrolidone (PVP) and thermally treated at 500 °C then TiO was deposited on top of modified SnO and followed by a final annealing. As a consequence SnO-TiO composite nanoparticles get crystallized while PVP is decomposed into monomer units and other attached smaller molecular fragments. TGA coupled with FT-IR spectroscopy confirmed the presence of monomers and other moieties as a result of PVP thermal fragmentation. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.026DOI Listing
February 2019
3 Reads

Aggregation behavior of pluronic F127 solutions in presence of chitosan/clay nanocomposites examined by dynamic light scattering.

J Colloid Interface Sci 2019 Feb 8;542:289-295. Epub 2019 Feb 8.

Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra (MIFT) Università degli Studi di Messina, Viale Stagno D'Alcontres 31, 98166 Messina, Italy. Electronic address:

Hypothesis: Although several researches have explored the dynamics of pluronic aqueous solutions under different conditions, little is known about the dynamical properties of pluronic copolymers in presence of nanoparticles. Knowing and understanding the fundamental dynamical behavior of such systems is crucial to optimize the formulation of high performance multifunctional structures.

Experiments: In the present work, dynamic light scattering (DLS) is used to investigate the temperature dependence of the dynamical properties of Pluronic F127 aqueous solutions in presence of intercalated chitosan/clay nanocomposites; for comparison, the pluronic aqueous solution and the binary systems pluronic/chitosan and pluronic/montmorillonite having the same copolymer concentration were also investigated. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.031DOI Listing
February 2019
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Ultra-strong mechanical property and force-driven malleability of water-poor hydrogels.

J Colloid Interface Sci 2019 Feb 6;542:281-288. Epub 2019 Feb 6.

Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials(MoE), State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, China. Electronic address:

Hydrogels are known as soft and wet materials. Development of metal-like hydrogels with super strong and malleable properties is highly desirable as it allows for broader application and reprocessability. Here we report a dual nanocomposite hydrogel with peculiar mechanical properties in water-poor region. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.015DOI Listing
February 2019
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Enhanced fluoride removal by hierarchically porous carbon foam monolith with high loading of UiO-66.

J Colloid Interface Sci 2019 Feb 7;542:269-280. Epub 2019 Feb 7.

Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Centre for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China. Electronic address:

Environmental concern associated with excess fluoride has intrigued the unceasing exploration of new multifunctional hybrid materials to mitigate any undesirable consequence to human health. Herein, a novel hybrid monolith has been successfully fabricated via a facile in-situ growth strategy for highly efficient defluoridation from contaminated waters, in which homogeneously dispersed UiO-66 particles are perfectly anchored on three dimensional (3D) porous carbon foam (CF). Benefiting from fully exposed active sites, excellent pore accessibility and efficient mass transport, the integrated UiO-66/CF hybrid monolith exhibits fast adsorption kinetics, and outstanding uptake capacity toward fluoride as high as 295 mg g, which greatly outperforms the previously reported adsorbents. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.027DOI Listing
February 2019
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High throughput synthesis of defect-rich MoS nanosheets via facile electrochemical exfoliation for fast high-performance lithium storage.

J Colloid Interface Sci 2019 Feb 4;542:263-268. Epub 2019 Feb 4.

School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China. Electronic address:

A facile and cost-effective method to prepare defect-rich MoS nanosheets is developed via an electrochemical exfoliation process. By using bucket-like metallic titanium mesh both as inert anode and container for MoS powders, defect-rich thin MoS nanosheets can be fast exfoliated from the bulk powders in aqueous sodium sulfate electrolyte under positive potentials. The as-obtained MoS nanosheets exhibit excellent cycling capability, high specific capacity, and superior rate performance for lithium storage. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.007DOI Listing
February 2019
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Pullulan-derived nanocomposite hydrogels for wastewater remediation: Synthesis and characterization.

J Colloid Interface Sci 2019 Feb 7;542:253-262. Epub 2019 Feb 7.

School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China. Electronic address:

Polysaccharide is a renewable, biocompatible and biodegradable material that has received considerable attention. In this work, a series of polysaccharide gels were synthesized from the chemical cross-linking of pullulan with diglycerols. The effects of the diglycerol chain length on the performance of the gels were evaluated by XRD, TGA, SEM, rheological testings and swelling measurements. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.025DOI Listing
February 2019

Synthesis of silica/polypeptide hybrid nanomaterials and mesoporous silica by molecular replication of sheet-like polypeptide complexes through biomimetic mineralization.

J Colloid Interface Sci 2019 Feb 6;542:243-252. Epub 2019 Feb 6.

Department of Chemical Engineering, National Cheng Kung University, No. 1, University Rd., Tainan 70101, Taiwan; Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan 70101, Taiwan. Electronic address:

Biomimetic synthesis of silica/polymer hybrid nanomaterials inspired by silica-condensing microorganisms has gained significant advances in recent years and the as-prepared hybrid materials have been explored for a variety of applications. In this work, silica/polypeptide hybrid nanoparticles (NPs) and coating films can be facilely fabricated by silica mineralization of poly(l-lysine)-block-poly(l-threonine)/poly(l-glutamic acid) (PLL-b-PLT/PGA) fibril complexes assembled in solutions or on substrates at benign conditions. The experimental data revealed that PLL-b-PLT can self-assemble to form fibrils via intermolecular hydrogen bonding interactions between PLT chains and, upon complexing with PGA, silicas were efficiently mineralized in both the sheet-like PLL/PGA complexes and PLT domains, resulting in the fabrication of silica/polypeptide hybrid materials. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.014DOI Listing
February 2019

High-expansion polypropylene foam prepared in non-crystalline state and oil adsorption performance of open-cell foam.

J Colloid Interface Sci 2019 Feb 7;542:233-242. Epub 2019 Feb 7.

Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, Shandong 250061, PR China.

The preparation of high-expansion open-cell foam for oil spill clean-ups is important, but still challenging with linear isotactic polypropylene (PP). Therefore, a cooling batch foaming method was designed to fabricate the high-expansion PP foams using supercritical CO as a blowing agent. To investigate the relation between the crystallization and foaming of PP, an in-situ visualization system was employed. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.028DOI Listing
February 2019
3.368 Impact Factor

Interfacial properties, film dynamics and bulk rheology: A multi-scale approach to dairy protein foams.

J Colloid Interface Sci 2019 Feb 2;542:222-232. Epub 2019 Feb 2.

STLO, UMR1253, INRA, Agrocampus Ouest, F-35000 Rennes, France. Electronic address:

Hypothesis: The effective contribution of interfacial properties to the rheology of foams is a source of many open questions. Film dynamics during topological T1 changes in foams, essentially studied for low molecular weight surfactants, and scarcely for proteins, could connect interfacial properties to protein foam rheology.

Experiments: We modified whey protein isolate (WPI), and its purified major protein β-lactoglobulin (β-lg) by powder pre-conditioning and dry-heating in order to obtain a broad variety of interfacial properties. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.006DOI Listing
February 2019

Covalent organic frameworks converted N, B co-doped carbon spheres with excellent lithium ion storage performance at high current density.

J Colloid Interface Sci 2019 Feb 4;542:213-221. Epub 2019 Feb 4.

Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Materials Science, East China Normal University, 3663 N. Zhongshan Rd., Shanghai 200062, China.

Covalent organic frameworks (COFs) with devisable nanostructures have exhibited extensive application prospects in energy storage and conversion. In this work, spherical COFs were successfully utilized as an ideal precursor for N, B co-doped carbon spheres (NBCs) that display hierarchical spherical architectures with rich pores. When applied as lithium ion batteries (LIBs) anode, NBCs exhibit high reversible specific capacity and outstanding long-life cycling stability (205. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.009DOI Listing
February 2019
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Synthesis of 42-faceted bismuth vanadate microcrystals for enhanced photocatalytic activity.

J Colloid Interface Sci 2019 Feb 4;542:207-212. Epub 2019 Feb 4.

Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China; KU Leuven, Departement Chemie, Celestijnenlaan 200F, 3001 Heverlee, Belgium. Electronic address:

Bismuth vanadate (BiVO) microcrystals enclosed with up to 42 low and high index facets were synthesized through truncation of BiVO octahedral crystals via a simple and highly reproducible hydrothermal method. The size and shape of the truncated BiVO crystals could be tuned by varying the acid concentration, reaction temperature and reaction period. Compared to the BiVO octahedral crystals without truncation, the 42-faceted ones showed an enhanced photocatalytic activity in the degradation of rhodamine B molecules due to the enhanced charge separation on the exposed low and high index facets. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00219797193017
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http://dx.doi.org/10.1016/j.jcis.2019.02.008DOI Listing
February 2019
5 Reads

Benzoxazine monomer derived carbon dots as a broad-spectrum agent to block viral infectivity.

J Colloid Interface Sci 2019 Feb 4;542:198-206. Epub 2019 Feb 4.

State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China. Electronic address:

Multiple viruses can cause infection and death of millions annually. Of these, flaviviruses are found to be highly prevalent in recent years with no distinctive antiviral therapies. Therefore, there is a desperate need for broad-spectrum antiviral drugs that can be active against a large number of existing and emerging viruses. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.010DOI Listing
February 2019
2 Reads

Removal of toxic pollutants from aqueous media using poly (vinyl imidazole) crosslinked chitosan synthesised through microwave assisted technique.

J Colloid Interface Sci 2019 Jan 29;542:187-197. Epub 2019 Jan 29.

Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad 826004, India. Electronic address:

Water contamination owing to the presence of toxic organic chemicals/heavy metals are considered to be one of the serious global environmental issues. Various advanced polymeric materials have been developed and used for the separation/removal of these contaminants. To consider the afore-mentioned problem, recently in authors' laboratory, an efficient biopolymeric adsorbent has been prepared using poly (vinyl imidazole) crosslinked chitosan (cl-Ch-pVI) through a simple microwave-assisted free radical polymerization technique. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.121DOI Listing
January 2019

Solvent-free graphene liquids: Promising candidates for lubricants without the base oil.

J Colloid Interface Sci 2019 Feb 1;542:159-167. Epub 2019 Feb 1.

Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA. Electronic address:

Reduced graphene oxide modified by hyperbranched polyamine-ester (RGO-HBPE) liquids was successfully fabricated through the surface chemical engineering and tested for serving as a solvent-free novel lubricant. Structural characterization, dispersibility and rheology behavior of the lubricant and the related frication performance on steel plate were investigated thoroughly. The results manifest that the RGO-HBPE exhibited good dispersity in distilled water and liquid behavior without any solvent at ambient temperature. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.01.135DOI Listing
February 2019
1 Read

Phosphotungstic acid immobilized nanofibers-Nafion composite membrane with low vanadium permeability and high selectivity for vanadium redox flow battery.

J Colloid Interface Sci 2019 Feb 1;542:177-186. Epub 2019 Feb 1.

MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, No. 92 West-Da Zhi Street, Harbin 150001, China. Electronic address:

A novel composite vanadium-blocking proton exchange membrane for vanadium redox flow battery (VRB) was designed and constructed by immobilizing phosphotungstic acid (PWA) on Nano Kevlar Fibers (NKFs) via a solution-casting method. The proton/vanadium selectivity of the composite membrane is greatly improved by incorporating the complex formed by NKFs and PWA into the Nafion matrix. Simple tuning of the complex doping quantity results in different composite membranes with superior vanadium barrier properties (namely, a minimum vanadium permeability of 2. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.001DOI Listing
February 2019
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Enhanced photovoltaic properties of dye-sensitized solar cells using three-component CNF/TiO/Au heterostructure.

J Colloid Interface Sci 2019 Feb 2;542:168-176. Epub 2019 Feb 2.

State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China. Electronic address:

To further increase the photoelectric efficiency of dye-sensitized solar cell (DSSC), enhancing the light adsorption of photoanode and suppressing the recombination of photo-generated charges are of great importance. Motivated by this, a novel and efficient three-component CNF/TiO/Au heterostructure was successfully constructed and employed as an alternative photoanode material. The as-prepared CNF/TiO/Au is characterized by conductive carbon nanofiber (CNF) core, uniform TiO outer shell assembled by upright nanorods, and surface modification with well-dispersed Au nanoparticles. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.005DOI Listing
February 2019
1 Read