6,231 results match your criteria enhanced photocatalytic


Snow-like BiVO with rich oxygen defects for efficient visible light photocatalytic degradation of ciprofloxacin.

Sci Total Environ 2021 Nov 29:152083. Epub 2021 Nov 29.

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China. Electronic address:

The overuse of ciprofloxacin (CIP), causing serious environment pollution, has drawn great attentions. To provide alternative solution to this problem, we synthesized a snow-like BiVO with rich oxygen vacancy by adjusting the amounts of cetyltrimethyl ammonia bromide (CTAB) surfactant. Various characterizations were performed to investigate the morphology and surface properties of the synthesized BiVO. Read More

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November 2021

The role of size-controlled CeO nanoparticles in enhancing the stability and photocatalytic performance of ZnO in natural sunlight exposure.

Chemosphere 2021 Nov 29:133092. Epub 2021 Nov 29.

Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, 21589, Saudi Arabia; National Centre for Physics, Quaid-e-Azam University, Islamabad, 44000, Pakistan. Electronic address:

In order to enhance the photocatalytic performance and stability, the various proportions of the size controlled cerium oxide (CeO) nanoparticles were dispersed at the pre-synthesized ZnO. Although, the expected dual absorption onsets, probably due to the diminutive difference between the bandgaps of CeO (∼2.9 eV) and ZnO (∼3. Read More

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November 2021

Novel pure α-, β-, and mixed-phase α/β-BiO photocatalysts for enhanced organic dye degradation under both visible light and solar irradiation.

Environ Res 2021 Nov 29:112439. Epub 2021 Nov 29.

Department of Environmental Energy Engineering, Kyonggi University, Republic of Korea. Electronic address:

Combining the pure α- and β-phases of bismuth oxide enhances its photocatalytic activity under both visible and solar irradiation. α-BiO, β-BiO and α/β-BiO were synthesized by a solvothermal calcination method. The structural, optical, and morphological properties of the as-synthesized catalysts were analyzed using XRD, UV-DRS, XPS, SEM, TEM, and PL. Read More

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November 2021

Facet-engineering of NH-UiO-66 with enhanced photocatalytic hydrogen production performance.

Dalton Trans 2021 Dec 1. Epub 2021 Dec 1.

School of Materials Science and Engineering, Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China.

Sluggish charge transfer is the major problem which restricts the development of metal-organic framework (MOF)-based photocatalysts. Recently, facet-engineering has been proven to be an effective method for solving this issue. However, due to difficulties in regulating the exposed facets of MOFs, there are few reports about the facet-engineering of MOF-based photocatalysts. Read More

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December 2021

The highly enhanced Cr(VI) photoreduction removal by oxalic acid coordinated with iron-loaded waste Loofah.

Environ Res 2021 Nov 26:112456. Epub 2021 Nov 26.

School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.

In order to remove high toxic Cr(VI) from the water with low cost and high efficiency, iron-loaded Loofah (Loofah-Fe) was prepared from agriculture waste Loofah and was applied in the Cr(VI) photoreduction remvoal by oxalic acid (Ox). The Cr(VI) removal of Loofah-Fe/Ox/UV system were investigated by the effect of initial Cr(VI) concentration, Ox concentration and Loofah-Fe dosage. The Cr(VI) removal mechanism in Loofah-Fe/Ox/UV system were discussed through the study of initial pH, the change (pH, Ox concentration, Fe(II) and Fe(III) concentration) in solution during the reaction, and the free radicals scavenging test. Read More

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November 2021

Robust Heterogeneous Photocatalyst for Visible-Light-Driven Hydrogen Evolution Promotion: Immobilization of a Fluorescein Dye-Encapsulated Metal-Organic Cage on TiO.

ACS Appl Mater Interfaces 2021 Nov 27. Epub 2021 Nov 27.

School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.

The design of artificial photocatalytic devices that simulates the ingenious and efficient photosynthetic systems in nature is promising. Herein, a metal-organic cage [Pd(NPyCzPF)] (MOC-PC6) integrating 12 organic ligands NPyCzBP and 6 Pd catalytic centers is designed, which is well defined to include organic dye fluorescein (FL) for constructing a supramolecular photochemical molecular device (SPMD) [email protected] Photoinduced electron transfer (PET) between MOC-PC6 and the encapsulated FL has been observed by steady-state and time-resolved emission spectroscopy. Read More

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November 2021

Synergistic Effects of Fluorine and WO Nanoparticles on the Surface of TiO Hollow Spheres for Enhanced Photocatalytic Activity under Visible Light Irradiation.

ACS Omega 2021 Nov 11;6(46):30942-30948. Epub 2021 Nov 11.

Material Science & Chemical Engineering Center, Institute for Advanced Engineering (IAE), Yongin 175-28, Republic of Korea.

TiO is an attractive catalyst for the photocatalytic degradation of organic pollutants. However, owing to its large band gap, it can only be activated by ultraviolet (UV) light, which constitutes a small portion of solar energy. Therefore, there has been significant interest in extending its light absorption range from UV to visible light. Read More

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November 2021

Dual plasmonic Au and TiN cocatalysts to boost photocatalytic hydrogen evolution.

Chemosphere 2021 Nov 25:132987. Epub 2021 Nov 25.

School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, PR China. Electronic address:

Employing a suitable cocatalyst is very important to improve photocatalytic H evolution activity. Herein, two plasmonic cocatalysts, Au nanoparticles and TiN nanoparticles were in-situ coupled over the g-CN nanotube to form a ternary 0D/0D/1D Au/TiN/g-CN composite via a successive thermal polycondensation and chemical reduction method. The g-CN nanotube acted as a support for the growth of Au and TiN nanoparticles, leading to intimate contact between g-CN nanotube with Au nanoparticles and TiN nanoparticles. Read More

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November 2021

Boosting the photocatalytic hydrogen production performance of graphitic carbon nitride nanosheets by tailoring the cyano groups.

J Colloid Interface Sci 2021 Nov 20. Epub 2021 Nov 20.

Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China. Electronic address:

Graphitic carbon nitride (g-CN) is a promising visible light responsive photocatalyst for solar hydrogen production. However, pristine g-CN suffers from severe charge recombination, resulting in a poor photocatalytic activity. Herein, a facile KOH-assisted sealed heating process is designed to tailor the electronic structure of g-CN, leading to a significantly enhanced and stable photocatalytic hydrogen production rate of 225. Read More

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November 2021

Process enhancing strategies for the reduction of Cr(VI) to Cr(III) via photocatalytic pathway.

Environ Sci Pollut Res Int 2021 Nov 27. Epub 2021 Nov 27.

Hydrochemistry Research Laboratory, Department of Chemical Sciences, Adekunle Ajasin University, Akungba Akoko, Nigeria.

This discourse aimed at providing insight into the strategies that can be adopted to boost the process of photoreduction of Cr(VI) to Cr(III). Cr(VI) is amongst the highly detestable pollutants; thus, its removal or reduction to an innocuous and more tolerable Cr(III) has been the focus. The high promise of photocatalysis hinged on the sustainability, low cost, simplicity, and zero sludge generation. Read More

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November 2021

Engineering a NiAl-LDH/CoS S-Scheme heterojunction for enhanced photocatalytic hydrogen evolution.

J Colloid Interface Sci 2021 Nov 17. Epub 2021 Nov 17.

School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, PR China. Electronic address:

The use of semiconductors to construct heterojunctions to suppress the rapid recombination of photogenerated charges and holes is considered to be an effective way to improve the efficiency of photocatalytic hydrogen evolution. Herein, cobalt sulfide (CoS) nanoparticles are cultivated in situ in the folds of three-dimensional flower-like nickel-aluminium layered double hydroxides (NiAl-LDHs) using a facile solvothermal method. The hydrogen production rate of the binary CoS/NiAl-LDH heterojunction reaches 3678. Read More

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November 2021

Peroxymonosulfate Activation by BiWO/BiOCl Heterojunction Nanocomposites under Visible Light for Bisphenol A Degradation.

Nanomaterials (Basel) 2021 Nov 20;11(11). Epub 2021 Nov 20.

State Key Laboratory of Coal Mine Disaster Dynamics and Control, College of Environment and Ecology, Chongqing University, Chongqing 400044, China.

The combination of peroxymonosulfate (PMS) activation and photocatalysis has proven to be effective for organic contaminants treatment. However, the construction of an efficient catalytic material is an important challenge. Herein, novel BiWO/BiOCl heterojunction nanocomposites were successfully designed and fabricated using a facile and effective strategy for bisphenol A (BPA) photodegradation with PMS activation. Read More

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November 2021

CdInS/In(OH)/NiCr-LDH Multi-Interface Heterostructure Photocatalyst for Enhanced Photocatalytic H Evolution and Cr(VI) Reduction.

Nanomaterials (Basel) 2021 Nov 19;11(11). Epub 2021 Nov 19.

Institute of Optoelectronic Materials and Devices, College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China.

The development of highly active and stable photocatalysts, an effective way to remediate environment pollution and alleviate energy shortages, remains a challenging issue. In this work, a CdInS/In(OH) nanocomposite was deposited in-situ on NiCr-LDH nanosheets by a simple hydrothermal method, and the obtained CdInS/In(OH)/NiCr-LDH heterostructure photocatalysts with multiple intimate-contact interfaces exhibited better photocatalytic activity. The photocatalytic H evolution rate of CdInS/In(OH)/NiCr-LDH increased to 10. Read More

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November 2021

Synthesis and Enhanced Light Photocatalytic Activity of Modulating Band BiOBrI Nanosheets.

Nanomaterials (Basel) 2021 Nov 2;11(11). Epub 2021 Nov 2.

National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 150001, China.

The photocatalysis technique has been proven to be a promising method to solve environmental pollution in situations of energy shortage, and has been intensively investigated in the field of pollutant degradation. In this work, a band structure-controlled solid solution of BiOBrI (x = 0.00, 0. Read More

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November 2021

Preparation of AgPO/TiO(B) Heterojunction Nanobelt with Extended Light Response and Enhanced Photocatalytic Performance.

Molecules 2021 Nov 19;26(22). Epub 2021 Nov 19.

Department of Physics, and Innovation Center of Materials for Energy and Environment Technologies, College of Science, Tibet University, Lhasa 850000, China.

Photocatalytic degradation, as an emerging method to control environmental pollution, is considered one of the most promising environmental purification technologies. As Tibet is a region with some of the strongest solar radiation in China and even in the world, it is extremely rich in solar energy resources, which is ideal for applying photocatalytic technology to its ecological environment protection and governance. In this study, NaTiO nanobelts were prepared via a hydrothermal method and converted to TiO∙xHO ion exchange, which was followed by high-temperature calcination to prepare TiO(B) nanobelts ("B" in TiO(B) means "Bronze phase"). Read More

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November 2021

Ionic Porous Aromatic Framework as a Self-Degraded Template for the Synthesis of a Magnetic γ-FeO/WO·0.5HO Hybrid Nanostructure with Enhanced Photocatalytic Property.

Molecules 2021 Nov 13;26(22). Epub 2021 Nov 13.

Instrumental Analysis Center, Shenyang University of Chemical Technology, Shenyang 110142, China.

An ionic porous aromatic framework is developed as a self-degraded template to synthesize the magnetic heterostructure of γ-FeO/WO·0.5HO. The FeO polyhedron was obtained with the two-phase method first and then reacted with sodium tungstate to form the γ-FeO/WO·0. Read More

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November 2021

Enhanced Solar Photocatalytic Reduction of Cr(VI) Using a (ZnO/CuO) Nanocomposite Grafted onto a Polyester Membrane for Wastewater Treatment.

Polymers (Basel) 2021 Nov 22;13(22). Epub 2021 Nov 22.

Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia.

Among chemical water pollutants, Cr(VI) is a highly toxic heavy metal; solar photocatalysis is a cost-effective method to reduce Cr(VI) to innocuous Cr(III). In this research work, an efficient and economically feasible ZnO/CuO nanocomposite was grafted onto the polyester fabric ZnO/CuO/PF through the SILAR method. Characterization by SEM, EDX, XRD, and DRS confirmed the successful grafting of highly crystalline, solar active nanoflakes of ZnO/CuO nanocomposite onto the polyester fabric. Read More

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November 2021

Electrospun Poly(methyl methacrylate)/TiO Composites for Photocatalytic Water Treatment.

Polymers (Basel) 2021 Nov 13;13(22). Epub 2021 Nov 13.

Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St., bl. 103A, 1113 Sofia, Bulgaria.

Electrospinning was successfully used for the one-step fabrication of poly(methyl methacrylate) (PMMA) fibers loaded with an inorganic photocatalyst-titanium oxide (TiO). By tuning the PMMA/TiO ratio and the electrospinning conditions (applied voltage, needle tip-to-collector distance, and flow rates), PMMA/TiO composites with selected organic/inorganic ratios, tailored designs, and targeted properties were obtained. The morphology of the electrospun composites was affected by the amount of TiO incorporated into the PMMA fibers. Read More

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November 2021

State-of-the-Art Ceramic Membranes for Oily Wastewater Treatment: Modification and Application.

Membranes (Basel) 2021 Nov 19;11(11). Epub 2021 Nov 19.

Sanitary Engineering, Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands.

Membrane filtration is considered to be one of the most promising methods for oily wastewater treatment. Because of their hydrophilic surface, ceramic membranes show less fouling compared with their polymeric counterparts. Membrane fouling, however, is an inevitable phenomenon in the filtration process, leading to higher energy consumption and a shorter lifetime of the membrane. Read More

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November 2021

Photo- and thermo-catalytic mechanisms for elemental mercury removal by Ce doped commercial selective catalytic reduction catalyst (VO/TiO).

Chemosphere 2022 Jan 24;287(Pt 3):132336. Epub 2021 Sep 24.

State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science & Technology, Wuhan, 430074, China. Electronic address:

The elemental mercury was catalytically removed by VO/TiO and Ce doped VO/TiO catalysts under the UV irradiation at 30-160 °C to determine whether the catalysts could simultaneously have both thermo- and photo-catalytic activities. The physicochemical properties of catalysts were characterized by XRD, SEM, EDX, BET, XPS, UV-visible, PER and EIS. The experimental results demonstrated that VO/TiO and Ce-doped catalysts possessed both thermo- and photo-catalytic reactivities. Read More

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January 2022

Accelerated charge transfer in well-designed S-scheme [email protected]/Boron carbon nitride heterostructures for high performance tetracycline removal and selective photo-reduction of CO greenhouse gas into CH fuel.

Chemosphere 2022 Jan 21;287(Pt 3):132301. Epub 2021 Sep 21.

College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Laboratory for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen, 518055, PR China. Electronic address:

Designing and fabrication of smart hybrid multifunctional materials for energy/fuel production and environmental detoxification is indeed of great significance for sustainable development. Herein, we synthesized a new well-structured S-scheme heterostructure [email protected]/Boron Carbon nitride (FT/BCN) with high performance tetracycline degradation and selective CO photo-reduction to CH. Under visible light irradiation, 96. Read More

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January 2022

Fabrication of a dual S-scheme BiOI/g-CN/BiOCl heterojunction with enhanced visible-light-driven performance for phenol degradation.

Chemosphere 2022 Jan 11;287(Pt 2):132241. Epub 2021 Sep 11.

College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, China; Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, China. Electronic address:

S-scheme heterostructure can facilitate the separation of carriers while maintain outstanding redox capacity. A series of ternary BiOI/g-CN/BiOCl photocatalytic system was triumphantly synthesized via oil bath method in this work and used in photocatalytic degradation of phenol. The optimal TOC removal rate reached up to 93. Read More

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January 2022

Green synthesis of magnetically recyclable [email protected] composites from spent batteries for visible light photocatalytic degradation of phenol.

Chemosphere 2022 Jan 11;287(Pt 2):132238. Epub 2021 Sep 11.

School of Petroleum and Environmental Engineering, Yan'an University, Yan'an, 716000, PR China.

Magnetic binary heterojunctions are a kind of promising photocatalysts due to their high catalytic activity and easy magnetic separation; however, their synthesis may involve high costs or secondary environmental impacts. In this work, the magnetically recyclable [email protected] ([email protected], x = 0.00-0. Read More

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January 2022

Synthesis of enhanced corrosion resistant Fe-B-C-Ti amorphous ribbons and evaluation of their photodegradation efficiency under light irradiation.

Chemosphere 2022 Jan 8;287(Pt 2):132175. Epub 2021 Sep 8.

Department of Materials Science and Metallurgical Engineering, Kyungpook National University, Daegu, 41566, South Korea. Electronic address:

Fe-based amorphous alloys have been found to be very efficient in the degradation of water pollutants due to their unique atomic arrangements with long-range disordered structure. In this work, Fe-B-C-Ti amorphous ribbons were successfully synthesized and showed high catalytic efficiency in the degradation of methylene blue (MB) under simulated sunlight and across a wide pH range. The catalytic efficiency was evaluated under different conditions to optimize the degradation performance. Read More

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January 2022

Visible light photodegradation of 2,4-dichlorophenol using nanostructured NaBiS: Kinetics, cytotoxicity, antimicrobial and electrochemical studies of the photocatalyst.

Chemosphere 2022 Jan 14;287(Pt 2):132174. Epub 2021 Sep 14.

Coal and Mineral Processing Division, CSIR - Central Institute of Mining and Fuel Research (CIMFR), Digwadih Campus, PO: FRI, Dhanbad, 828108, Jharkhand, India. Electronic address:

Removal of the hazardous and endocrine-disrupting 2,4-dichlorophenol (2,4-DCP) from water bodies is crucial to maintain the sanctity of the ecosystem. As a low bandgap material (1.37 eV), NaBiS was hydrothermally prepared and used as a potential photocatalyst to degrade 2,4-DCP under visible light irradiation. Read More

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January 2022

Enhanced photocatalytic performance of visible-light-driven CuO/TiO for degradation of gaseous formaldehyde: Roles of oxygen vacancies and nano copper oxides.

Chemosphere 2021 Nov 23:133007. Epub 2021 Nov 23.

Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China. Electronic address:

Photocatalysis is an effective method for the removal of formaldehyde (HCHO), and high-efficiency visible-light-driven photocatalysts were urgently required. Herein, oxygen vacancies (OVs) and nano copper oxides (CuO) synergistically modified TiO (CuO/TiO) photocatalysts were synthesized by one-step hydrothermal followed by impregnation method. The photocatalytic decomposition of HCHO reached 100% at initial concentration of 180 ppm under relative humidity (RH) = 60% by 0. Read More

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November 2021

Grafting Hypercrosslinked Polymers on TiO Surface for Anchoring Ultrafine Pd Nanoparticles: Dramatically Enhanced Efficiency and Selectivity toward Photocatalytic Reduction of CO to CH.

Small 2021 Nov 26:e2105083. Epub 2021 Nov 26.

Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, Wuhan, 430074, China.

Metal deposition with photocatalyst is a promising way to surmount the restriction of fast e /h recombination to improve the photocatalytic performance. However, the improvement remains limited by the existing strategies adopted for depositing metal particles due to the serious aggregation and large unconnected area on photocatalyst surface. Here, a strategy is proposed by directly grafting hypercrosslinked polymers (HCPs) on TiO surface to construct Pd-HCPs-TiO composite with uniform dispersion of ultrafine Pd nanoparticles on HCPs surface. Read More

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November 2021

Electrospinning preparation of g-CN/NbO nanofibers heterojunction for enhanced photocatalytic degradation of organic pollutants in water.

Sci Rep 2021 Nov 25;11(1):22950. Epub 2021 Nov 25.

College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China.

In this study, graphitic carbon nitride (g-CN) and niobium pentoxide nanofibers (NbO NFs) heterojunction was prepared by means of a direct electrospinning approach combined with calcination process. The characterizations confirmed a well-defined morphology of the g-CN/NbO heterojunction in which NbO NFs were tightly attached onto g-CN nanosheets. Compared to pure g-CN and NbO NFs, the as-prepared g-CN/NbO heterojunction exhibited remarkably enhanced photocatalytic activity for degradation of rhodamine B and phenol under visible light irradiation. Read More

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November 2021

Enhanced uranium photoreduction on TiCT MXene by modulation of surface functional groups and deposition of plasmonic metal nanoparticles.

J Hazard Mater 2021 Nov 17:127823. Epub 2021 Nov 17.

State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Civil-military Integration Institute, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China. Electronic address:

Photocatalytic reduction of soluble hexavalent uranium (U(VI)) is a novel and efficient avenue to enriching U(VI), where the free U(VI) is firstly bound on the surface of photocatalysts and then reduced to insoluble tetravalent uranium (U(IV)) by photoelectrons. Therefore, constructing the efficient U(VI) binding sites on photocatalysts is an efficient strategy to boost catalytic activity toward U(VI) photoreduction. Herein, we successfully constructed an efficient catalyst for U(VI) photoreduction by depositing Ag nanoparticles on TiCT MXene with abundant U(VI) binding sites (Ag/TiCT-O). Read More

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November 2021

Ultrasensitive Photochemical Immunosensor Based on Flowerlike SnO/BiOI/AgS Composites for Detection of Procalcitonin.

Biosensors (Basel) 2021 Oct 28;11(11). Epub 2021 Oct 28.

Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.

Based on the necessity and urgency of detecting infectious disease marker procalcitonin (PCT), a novel unlabeled photoelectrochemical (PEC) immunosensor was prepared for the rapid and sensitive detection of PCT. Firstly, SnO porous nanoflowers with good photocatalytic performance were prepared by combining hydrothermal synthesis and calcining. BiOI nanoflowers were synthesized by facile ultrasonic mixed reaction. Read More

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October 2021