162,187 results match your criteria Adsorption Science & Technology[Journal]

Effects of different substrates on the adsorption behavior of supported-adsorbents: A case study of MoS for Ag adsorption.

Environ Res 2022 Aug 7:113969. Epub 2022 Aug 7.

National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, PR China; Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, PR China. Electronic address:

Supported-adsorbents growing on the substrate in situ are equipped with the advantages of high adsorption capacity, excellent regeneration performance, and adaptability to complex wastewater. However, the effects of substrate on the adsorption properties of supported-adsorbent are rarely considered, which will hinder its development and scale-up applications. In this study, the influences of different substrates (Ti, Mo, W, CC) on the Ag adsorption behavior of supported-MoS adsorbents were investigated. Read More

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Locust Bean gum-based hydrogels embedded magnetic iron oxide nanoparticles nanocomposite: Advanced materials for environmental and energy applications.

Environ Res 2022 Aug 7:114000. Epub 2022 Aug 7.

Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea. Electronic address:

This paper reports a simple method of designing and synthesizing magnetic iron oxide (IO) integrated locust bean gum-cl-polyacrylonitrile hydrogel nanocomposites (LBG-cl-PAN/IONP) by in situ mineralization of iron ions in a hydrogel matrix. A two-step gel crosslink method followed by co-precipitation method was used to prepare these novel hydrogels embedded with magnetic iron oxide nanoparticles. The LBG-cl-PAN/IONP hydrogel nanocomposite (HNC) were tested in batch adsorption experiments for their ability to remove a cationic dyes, methylene blue (MB) & Methyl violet (MV), from aqueous solution. Read More

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Comprehensive evaluation of cobalt incorporated cryptomelane-type manganese oxide molecular sieve as an efficient adsorbent for enhanced removal of europium from wastewater systems.

Environ Res 2022 Aug 7:113965. Epub 2022 Aug 7.

School of Science, North University of China, Taiyuan, Shanxi, 030051, PR China.

Extraction of radionuclide contaminants from wastewater systems has recently drawn widespread attention, and then developing a novel and green extracting technology has also become an enormous challenge. Herein, a facile hydrothermal method was employed to fabricate cobalt-incorporated cryptomelane-type manganese oxide molecular sieve (Co-OMS-2) for extraction Eu(III) from wastewater under diverse experimental conditions. All kinds of characterized techniques, such as SEM, TEM, XRD, FTIR, BET, EDS and XPS had verified the qualified synthesis process and splendid structural features of the Co-OMS-2. Read More

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Reduction, stabilization, and solidification of Cr(VI) in contaminated soils with a sustainable by-product-based binder.

Chemosphere 2022 Aug 7:135902. Epub 2022 Aug 7.

School of Mechanics and Engineering Science, Shanghai University, 200444, Shanghai, PR China. Electronic address:

This study evaluated the use of a sustainable GFD binder for the stabilization/solidification (S/S) of chromium VI (Cr(VI))-contaminated soil. The GFD binder was composed of ground granulated blast furnace slag (GGBFS), fly ash and desulfurization ash, named after the initials of the three materials. The effects of curing time and binder dosage on soil unconfined compressive strength (UCS), Cr leachability, soil pH, and reduction ratio of Cr (VI) were tested. Read More

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Remediation of cadmium and lead contaminated soils using Fe-OM based materials.

Chemosphere 2022 Aug 7:135853. Epub 2022 Aug 7.

School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.

Iron oxide-lignin composites (GLS) were prepared based on the significant role of Fe-OM in the environmental behaviour of heavy metals and lignin binding with iron oxide preferentially in soil. GLS was applied in Cd/Pb immobilization and the stability under acid rain was investigated. The results show that the iron oxide appeared weakly crystalline or amorphous similar to 2-line ferrihydrite after the addition of lignin. Read More

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Clay-polymer nanocomposites for water and wastewater treatment: A comprehensive.

Chemosphere 2022 Aug 7:135869. Epub 2022 Aug 7.

Department of Chemistry, National Institute of Technology Mizoram, Chaltlang, Aizawl, 796012, India. Electronic address:

A majority of water pollution or contamination occurs through the discharge of effluents from industries. Wastewater treatment is crucial to protect our water sources from harmful pollutants. Therefore, a number of efforts have been made to tackle this issue by employing different techniques. Read More

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Potential of sugarcane bagasse in remediation of heavy metals: A review.

Chemosphere 2022 Aug 7:135825. Epub 2022 Aug 7.

Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal, 462003, Madhya Pradesh, India. Electronic address:

Presence of heavy metal (HM) ions in wastewater have emerged as among the most prominent issues for improving water quality and reducing it's consequences for the environment, animal and public health. This paper mainly focuses on the remediation of HM ions from wastewater utilizing the relatively inexpensive and widely accessible agricultural waste-Sugarcane Bagasse (SCB). For this, a brief understanding of HMs was discussed (by understanding the sources and toxicity of HM, advantages and shortcomings of conventional processes). Read More

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Vinyl chloride catalytic combustion on Pt/CeO: Tuning Pt chemical state to promote Cl removing.

Chemosphere 2022 Aug 7:135861. Epub 2022 Aug 7.

Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.

Supported Pt catalysts usually produce chlorinated byproducts during chlorinated volatile organic compounds (CVOCs) combustion, the removal of formed surface chlorine species is the key to improve the activity, selectivity and stability. In this paper, the Pt chemical state is adjusted by the interaction between Pt and CeO through controlling the morphology of CeO, which further affects the catalytic performance of VC combustion. For Pt/CeO-octahedron, the weak interaction between Pt and CeO results in the formation of PtO, facilities VC adsorption and C-Cl bonds cleavage and becomes a key active site to accommodate the dissociated Cl species. Read More

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Stabilization of Carbon Nanotubes and Graphene by Tween-80: Mechanistic Insights from Spectroscopic and Simulation Studies.

Langmuir 2022 Aug 10. Epub 2022 Aug 10.

School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh 173 229, India.

Polyoxyethylene sorbitan monooleate is commonly used to obtain stable dispersions of nanoparticles (NPs) such as carbon nanotubes (CNTs) and graphene. However, the mechanism underlying dispersion is poorly understood. The present study aimed at investigating the mechanism of stabilization of carbon NPs (CNPs), namely, single-walled CNTs (SWCNTs), multi-walled CNTs (MWCNTs), and graphene, by Tween-80 using attenuated total internal reflection-Fourier transform infrared and nuclear magnetic resonance (NMR) spectroscopy. Read More

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Formic Acid-Mediated Regeneration Strategy for As-Poisoned VO-WO/TiO Catalysts with Lossless Catalytic Activity and Simultaneous As Recycling.

Environ Sci Technol 2022 Aug 10. Epub 2022 Aug 10.

School of Space and Environment, Beihang University, Beijing 100191, P. R. China.

Regeneration of spent VO-WO/TiO catalysts is highly desirable, especially for those containing hypertoxic As, which is categorized as hazardous waste. However, common solution-leaching methods suffer from the trade-off between As removal and VO retention, and it would be necessary to introduce extra proceedings like ingredients reimplantation and As-bearing waste treatment after regeneration. Herein, a formic acid-mediated regeneration strategy has been developed to achieve superior catalytic activity, short timescale regeneration, and nontoxic metallic As recycling with controllable and safe conduction. Read More

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Chromium (VI) bioremoval from contaminated wastewater using Pseudomonas aeruginosa ATHA23 producing biofilm supported on clinoptilolite.

Environ Geochem Health 2022 Aug 10. Epub 2022 Aug 10.

Department of Basic Medical Sciences, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran.

More has yet to be investigated on the increased efficiency of microbes for the removal of heavy metals from industrial wastewaters. The objective was to determine the Cr (VI) bioabsorption and bioreduction ability of biofilm-producing bacteria supported on clinoptilolite from contaminated aqueous solutions. Chromium (VI)-tolerant bacteria, namely Pseudomonas aeruginosa ATHA23, were identified by biochemical methods and 16S rDNA sequencing and were deposited in NCBI (accession number: KF680991). Read More

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Nitrate contamination in water resources, human health risks and its remediation through adsorption: a focused review.

Environ Sci Pollut Res Int 2022 Aug 10. Epub 2022 Aug 10.

Department of Biotechnology, National Institute of Technology, Agartala, Tripura, India.

The level of nitrate in water has been increasing considerably all around the world due to vast application of inorganic nitrogen fertiliser and animal manure. Because of nitrate's high solubility in water, human beings are getting exposed to it mainly through various routes including water, food etc. Various regulations have been set for nitrate (45-50 mgNO/L) in drinking water to protect health of the infants from the methemoglobinemia, birth defects, thyroid disease, risk of specific cancers, i. Read More

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Preparation of lignite-loaded nano-FeS and its performance for treating acid Cr(VI)-containing wastewater.

Environ Sci Pollut Res Int 2022 Aug 10. Epub 2022 Aug 10.

College of Civil Engineering, Liaoning Technical University, Fuxin, 123000, China.

In this study, lignite-loaded nano-FeS ([email protected]) was successfully prepared by ultrasonic precipitation, and its potential for treating acid Cr(VI)-containing wastewater was explored. The results showed that the 40--80-nm rod-shaped nFeS was successfully loaded onto lignite particles, and the maximum adsorption capacity of Cr(VI) by [email protected] reached 33.08 mg∙g (reaction time = 120 min, pH = 4, temperature = 298. Read More

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Atomically Reconstructed Palladium Metallene by Intercalation-Induced Lattice Expansion and Amorphization for Highly Efficient Electrocatalysis.

ACS Nano 2022 Aug 10. Epub 2022 Aug 10.

Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States.

As an emerging class of materials with distinctive physicochemical properties, metallenes are deemed as efficient catalysts for energy-related electrocatalytic reactions. Engineering the lattice strain, electronic structure, crystallinity, and even surface porosity of metallene provides a great opportunity to further enhance its catalytic performance. Herein, we rationally developed a reconstruction strategy of Pd metallenes at atomic scale to generate a series of nonmetallic atom-intercalated Pd metallenes (M-Pdene, M = H, N, C) with lattice expansion and S-doped Pd metallene (S-Pdene) with an amorphous structure. Read More

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Drug Delivery Using Hydrophilic Metal-Organic Frameworks (MOFs): Effect of Structure Properties of MOFs on Biological Behavior of Carriers.

Inorg Chem 2022 Aug 10. Epub 2022 Aug 10.

Department of Basic Sciences, Farhangian University, Tehran 1939614464, Iran.

To study the influence of pore structural properties of metal-organic frameworks (MOFs) on drug adsorption and delivery, we synthesized two MOF termed TMU-6(RL1) {[Zn(oba)(RL1)]·(DMF)} and TMU-21(RL2) {[Zn(oba)(RL2)]·(DMF)} with amine basic N-donor pillars containing phenyl or naphthyl cores with various hydrophilic properties around the main center of the reaction. TG, IR, XPS, and PXRD analyses were used to extensively characterize the MOFs. The synthesized carriers showed high adsorption efficiency, stability, and controlled release. Read More

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High-Performance Material for the Effective Removal of Uranyl Ion from Solution: Computationally Supported Experimental Studies.

Langmuir 2022 Aug 10. Epub 2022 Aug 10.

Department of Chemistry, Sakarya University, 54050 Sakarya, Turkey.

Adsorption is a widely used method for pollution removal and for the recovery of valuable species. In recent years, the use of metal-organic compounds among the adsorbents used in adsorption studies has increased. In this study, the performance of the water-insoluble Fe complex as a metal organic framework (MOF-Fe-Ta) of water-soluble tannic acid, which is not used as an adsorbent in uranium recovery and removal, was investigated. Read More

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Understanding the Stabilizing Effect of Histidine on mAb Aggregation: A Molecular Dynamics Study.

Mol Pharm 2022 Aug 10. Epub 2022 Aug 10.

Department of Chemistry, Molecular Sciences Research Hub Imperial College, London W12 0BZ, United Kingdom.

Histidine, a widely used buffer in monoclonal antibody (mAb) formulations, is known to reduce antibody aggregation. While experimental studies suggest a nonelectrostatic, nonstructural (relating to secondary structure preservation) origin of the phenomenon, the underlying microscopic mechanism behind the histidine action is still unknown. Understanding this mechanism will help evaluate and predict the stabilizing effect of this buffer under different experimental conditions and for different mAbs. Read More

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Diclofenac removal by the microalgae species , and .

3 Biotech 2022 Sep 6;12(9):210. Epub 2022 Aug 6.

Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6, 78210 San Luis Potosí, Mexico.

In this work, we evaluated the removal efficiency of diclofenac by OW-01, CCAP 849/7, UTEX 72, and CCAP 276/2. Each microalga was grown in media with different concentrations (50 and 100% of the original formulation) of carbon, nitrogen, and phosphorus, to evaluate their effect on the removal of diclofenac. We also evaluated the photodegradation of diclofenac under the same conditions. Read More

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September 2022

Deep-Blue Electroluminescence of Perovskites with Reduced Dimensionality Achieved by Manipulating Adsorption-Energy Differences.

Angew Chem Int Ed Engl 2022 Aug 9. Epub 2022 Aug 9.

Jilin University, College of physics, Qianjin Street, 130022, Changchun, CHINA.

The lagging development of deep-blue perovskite light-emitting diodes (PeLEDs) heavily impedes their practical applications in full-color display due to the absence of spectrally stable emitters and the mismatch of carrier injection capacity. Herein, we report highly efficient deep-blue PeLEDs through a new chemical strategy that addresses the dilemma for simultaneously constant electroluminescence (EL) spectra and high-purify phase in reduced-dimensional perovskites. The success lies in the control of adsorption-energy differences between phenylbutylamine (PBA) and ethylamine (EA) interacting with perovskites, which facilitates narrow n-value distribution. Read More

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Rational construction and understanding the effect of metal cation substitution of three novel ternary Zn-Co-Ni-LDHs from 2D to 3D and its enhanced adsorption properties for MO.

Environ Sci Pollut Res Int 2022 Aug 10. Epub 2022 Aug 10.

School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China.

The layered double hydroxides (LDHs) have attracted attention in the water treatment field. In this paper, three novel ternary Zn-Co-Ni-LDH adsorbents were prepared successfully through rational construction from 2D to 3D using triethanolamine (TEA) as an alkali source and a structural controlling reagent by hydrothermal technique. Samples were characterized by the SEM, XRD, XPS, FTIR, BET, solid-state UV/vis spectra, and TG. Read More

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Recruiting chemical grafting method for surface modification of stainless steel to fabricate a selective sorbent for solid phase microextraction of mercury metal ion.

Environ Sci Pollut Res Int 2022 Aug 9. Epub 2022 Aug 9.

Department of Chemistry, Semnan University, Semnan, 35195-363, Iran.

Keeping selectiveness and efficiency in view with solid-phase microextraction (SPME) of metal ions, this work was aimed at synthesis of a novel modified sorbent on a stainless-steel surface to fabricate a selective and efficient fiber for SPME of mercury ions from real food and biological samples. After the confirmation of sorbent structure grafted on the stainless-steel surface, by different techniques, the synthesized fiber was utilized for extraction and preconcentration of mercury before its measurement by an inductively coupled plasma-optical emission spectroscopy (ICP-OES). For optimizing the efficiency, the influences of various factors on the extraction of Hg (II) ion were scrutinized. Read More

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Improving the Accuracy of Modelling CO2 Electroreduction on Copper Using Many-Body Perturbation Theory.

Angew Chem Int Ed Engl 2022 Aug 9. Epub 2022 Aug 9.

University of California Los Angeles, Chemical and Biomolecular Engineering, 5531 Boelter Hall, Box 951592, 90095-1592, Los Angeles, UNITED STATES.

Copper (Cu) remains the most important metal catalyst for the carbon dioxide reduction reaction (CO 2 RR) into C 2 products. Due to limited evidence from in situ experiments, mechanistic studies are often performed in the framework of density functional theory (DFT), using functionals at the generalized gradient approximation (GGA) level, which have fundamental difficulties to correctly describe CO adsorption and surface stability. We employ the adiabatic connection fluctuation dissipation theorem within the random phase approximation (RPA), in combination with the linearized Poisson-Boltzmann equation to describe solvation effects, to investigate the mechanism of CO 2 RR on the Cu(100) facet. Read More

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Atomically Dispersed Indium-Copper Dual-Metal Active Sites Promoting C-C Coupling for CO2 Photoreduction to Ethanol.

Angew Chem Int Ed Engl 2022 Aug 9. Epub 2022 Aug 9.

Dalian University of Technology, State Key Leb of Fine Chemicals, No 2 Linggong Road, Gaoxin District, 116024, Dalian, CHINA.

Photoreduction of CO 2 to C 2+ solar fuel is a promising carbon-neutral technology for renewable energy. This strategy is challenged by its low productivity due to low efficiency in multielectron utilization and slow C-C coupling kinetics. This work reports a dual-metal photocatalyst consisted of atomically dispersed Indium-Copper anchored on polymeric carbon nitride (InCu/PCN), on which the photoreduction of CO 2 delivered an excellent ethanol production rate of 28. Read More

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Insights on α-Glucose Biosensors/Carriers Based on Boron-Nitride Nanomaterials from an Atomistic and Electronic Point of View.

Chemphyschem 2022 Aug 9. Epub 2022 Aug 9.

Instituto Tecnológico Superior de Zacapoaxtla, Mechatronics Engineering, Carretera Acuaco-Zacapoaxtla km 8, Col. Totoltepec, 73680, Zacapoaxtla, MEXICO.

The interaction of α- glucose with a BN-nanosheet, BN-nanotube, and BN-fullerene, was analyzed from an atomistic and electronic point of view, to evaluate such nanostructures as possible carriers and/or biosensors of the α- glucose molecule. Adsorption energies are in the range of physisorption (-0.79 eV to -0. Read More

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Versatile in silico modeling of XAD-air partition coefficients for POPs based on abraham descriptor and temperature.

Environ Pollut 2022 Aug 6:119857. Epub 2022 Aug 6.

School of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China. Electronic address:

The concentration of persistent organic pollutants (POPs) makes remarkable difference to environmental fate. In the field of passive sampling, the partition coefficients between polystyrene-divinylbenzene resin (XAD) and air (i.e. Read More

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Effective and stable adsorptive removal of Cadmium(II) and Lead(II) using selenium nanoparticles modified by microbial SmtA metallothionein.

Chemosphere 2022 Aug 6:135818. Epub 2022 Aug 6.

State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China. Electronic address:

Metallothionein SmtA-modified selenium nanoparticles (SmtA-SeNPs), efficient adsorbents for Cd(II) and Pb(II), were synthesized in the present work. The ligand, microbial SmtA protein, was synthesized using an engineered strain Escherichia coli, posing the benefits of simplicity, safety, and high production. SmtA-SeNPs were spheres with diameters between 68. Read More

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Highly adsorptive protein inorganic nanohybrid of Moringa seeds protein and rice husk nanosilica for effective adsorption of pharmaceutical contaminants.

Chemosphere 2022 Aug 6:135856. Epub 2022 Aug 6.

Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, 100000, Viet Nam. Electronic address:

The present study aims to investigate adsorption characteristics and mechanisms of Moringa (MO) seeds protein on nanosilica rice husk and their applications in removal of pharmaceutical residues including the fluoroquinolone antibiotic levofloxacin (LFX) and the nonsteroidal anti-inflammatory drug diclofenac (DCF) in aquatic environment. Molecular weight of MO protein was determined by gel-permeation chromatography (GPC) method while its amino acids were quantified by high performance liquid chromatography (HPLC). The number-(M) and weight-average molecular weights (M) of MO protein were 1. Read More

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Recent advances in the utilization of immobilized laccase for the degradation of phenolic compounds in aqueous solutions: A review.

Chemosphere 2022 Aug 6:135824. Epub 2022 Aug 6.

Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, China. Electronic address:

Phenolic compounds such as phenol, bisphenol-A, 2-4 dichlorophenol, 4-chlorophenol, 4-nitrophenol and hydroquinone are well known to be highly detrimental to both human health and living beings. Thus, it is of critical importance that suitable remediation technologies are developed to remove phenolic compounds from aqueous solutions effectively. Biodegradation utilizing enzymatic technologies is a promising biotechnological solution to sustainably address the pollution in the aquatic environment as a result of phenolic compounds under a defined environmentally optimized strategy and thus should be investigated in great detail. Read More

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The effect of iron oxide types on the photochemical transformation of organic phosphorus in water.

Chemosphere 2022 Aug 6:135900. Epub 2022 Aug 6.

State Environmental Protection Key Laboratory of Soil Health and Green Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China. Electronic address:

Iron oxides play an important role in the transport and transformation of organic phosphorus in aquatic environments. However, the effect of different types of iron oxide on the environmental fate of organic phosphorus has remained unclear. In this study, the photodegradation of the organic phosphorus compound adenosine triphosphate (ATP) via the activity of crystalline (goethite) and amorphous (ferrihydrite) iron oxides was investigated. Read More

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Recent advances on the effects of microplastics on elements cycling in the environment.

Sci Total Environ 2022 Aug 6:157884. Epub 2022 Aug 6.

School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing 100083, PR China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science & Technology Beijing, Beijing 100083, PR China; National Engineering Laboratory for Site Remediation Technologies, Beijing 100015, PR China. Electronic address:

Microplastics (<5 mm) are an emerging pollutant which have received increasing concern in recent years. Microplastics pose a serious hazard and potential risk to the environment due to their migration, transformation, adsorption and degradation properties. The effects of different types of microplastics on the elemental cycles (carbon, nitrogen and phosphorus cycles) in ecosystems were comprehensively summarized. Read More

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