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Song Y, Ren S, Zhang Y, Zhang Z, Wang A. Facile synthesis of bimetallic ACF/CC@FeOCl-Cu composite cathode for efficient degradation of sulfamethoxazole at neutral pH by a flow-through heterogeneous electro-Fenton process. CHEMOSPHERE 2023; 341:139971. [PMID: 37652245 DOI: 10.1016/j.chemosphere.2023.139971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 09/02/2023]
Abstract
Flow-through heterogeneous electro-Fenton (FHEF) process shows a broad prospect for refractory organic pollutants removal. However, maintaining a long-term service life of higher catalytic cathode is crucial for the development of cathode materials, especially for iron-functionalized cathode operated under harsh conditions. In this study, a novel bimetallic CC@FeOCl-Cu composite was synthesized through one-step calcination, coupled with a series of microstructure characterization methodology, including XRD, SEM-EDS, XPS, and FTIR. The superior catalytic activity of CC@FeOCl-Cu could be ascribed to Fe-Cu synergy and better dispersion of FeOCl nanosheets. With the optimal Cu:Fe ratio of 1:60, the bifunctional ACF/CC@FeOCl-Cu cathode was employed in FHEF process, exhibiting an outstanding performance for sulfamethoxazole (SMX) removal over a wide pH range (3.0-9.0). Comparison of experimental results indicated that the ACF/CC@FeOCl-Cu-FHEF process showed higher performance than ACF/CC@FeOCl-FHEF and homogeneous EF processes. The average SMX removal efficiency was 98% and TOC removal efficiency was more than 57% even after 10 cycles. Radical quenching experiments and electron spin resonance test confirmed that •OH was the primary active species. More •OH was generated in the ACF/CC@FeOCl-Cu-FHEF process because the doping of Cu could enhance catalytic activity of cathode. In addition, the satisfactory performance could be observed in the ACF/CC@FeOCl-Cu-FHEF process for the treatment of real landfill leachate, indicating its potential for practical application in wastewater treatment.
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Affiliation(s)
- Yongjun Song
- Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, School of Environment, Beijing Jiaotong University, China.
| | - Songyu Ren
- Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, School of Environment, Beijing Jiaotong University, China
| | - Yanyu Zhang
- Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, School of Environment, Beijing Jiaotong University, China
| | - Zhongguo Zhang
- Institute of Resources and Environment, Beijing Academy of Science and Technology, China
| | - Aimin Wang
- Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, School of Environment, Beijing Jiaotong University, China.
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2
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Sb-doped FeOCl nanozyme-based biosensor for highly sensitive colorimetric detection of glutathione. Anal Bioanal Chem 2023; 415:1205-1219. [PMID: 36625896 DOI: 10.1007/s00216-022-04503-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/28/2022] [Accepted: 12/20/2022] [Indexed: 01/11/2023]
Abstract
Nanozymes have been emerging as substitutes for natural enzymes to construct biosensors towards biomolecular detection. However, the detection of glutathione (GSH) by nanozyme-based biosensors still remains a great challenge for research on catalytic activity enhancement and the detection mechanism. In this work, Sb-doped iron oxychloride (Sb-FeOCl) with a well-defined nanorod-like structure is prepared by high-temperature calcination. Sb-FeOCl nanorods have high peroxidase-like activity, which can catalyze the decomposition of H2O2 into ·OH and then oxidize 3,3',5,5'-tetramethylbenzidine (TMB). In view of these intriguing observations, a reliable colorimetric method with a simple mixing and detection strategy is developed for the detection of GSH. The linear range of GSH detection is 1-36 μM. The detection limit of GSH reaches a low level of 0.495 μM (3σ/slope). The GSH sensing system also exhibits excellent specificity and anti-interference. Taking advantage of the advantages of the Sb-FeOCl nanorod-based biosensor, it can be used to quantitatively detect GSH levels in human serum. It can be anticipated that the Sb-FeOCl nanorods have broad prospects in the field of enzymatic biochemical reactions.
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He Z, Guo Y, Chen J, Luo H, Liu X, Zhang X, Sun Y, Ge D, Ye S, Shi W. Unsaturated phospholipid modified FeOCl nanosheets for enhancing tumor ferroptosis. J Mater Chem B 2023; 11:1891-1903. [PMID: 36744515 DOI: 10.1039/d2tb01854c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Iron-dependent accumulation of reactive oxygen species (ROS) and lipid peroxidation play key roles in ferroptosis, which has been an attractive strategy to kill tumor cells. However, the rapid annihilation of hydroxyl radicals (˙OH) produced from the Fenton reaction has become a major obstacle in inducing lipid peroxidation in cells. In this study, we develop a nano-delivery system of unsaturated phospholipid (Lip) and polyacrylic acid (PAA) functionalized FeOCl nanosheets (FeOCl@PAA-Lip). In this system, the ˙OH radicals produced from the Fenton reaction between FeOCl nanosheets and endogenous H2O2 of tumor cells attack Lip on the nanosheets in situ to initiate the lipid peroxidation chain reaction, which not only realizes free radical conversion but also leads to the amplification of ROS and lipid peroxides, thus enhancing tumor ferroptosis. The in vitro and in vivo results confirmed that FeOCl@PAA-Lip nanosheets exhibited specific tumor cell-killing effects, good biocompatibility, long circulation time, low side effects, high tumor targeting and an excellent tumor inhibition rate (73%). The Lip functionalization strategy offers a paradigm of enhancing ferroptosis treatment by conversion of ˙OH/phospholipid radicals/lipid peroxyl radicals and strengthening lipid peroxidation.
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Affiliation(s)
- Zi He
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
| | - Yijun Guo
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
| | - Jinzhu Chen
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
| | - Huiling Luo
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
| | - Xinxin Liu
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
| | - Xiuming Zhang
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
| | - Yanan Sun
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
| | - Dongtao Ge
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
| | - Shefang Ye
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
| | - Wei Shi
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
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4
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Zhao Y, Zhao Y, Yu X, Kong D, Fan X, Wang R, Luo S, Lu D, Nan J, Ma J. Peracetic acid integrated catalytic ceramic membrane filtration for enhanced membrane fouling control: Performance evaluation and mechanism analysis. WATER RESEARCH 2022; 220:118710. [PMID: 35687976 DOI: 10.1016/j.watres.2022.118710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/22/2022] [Accepted: 05/31/2022] [Indexed: 05/09/2023]
Abstract
Endowing ceramic membrane (CM) catalytic reactivity can enhance membrane fouling control in the aid of in situ oxidation process. Peracetic acid (PAA) oxidant holds great prospect to integrate with CM for membrane fouling control, owing to the prominent advantages of high oxidation efficacy and easy activation. Herein, this study, for the first time, presented a PAA/CM catalytic filtration system achieving highly-efficient protein fouling alleviation. A FeOCl functionalized CM (FeOCl-CM) was synthesized, possessing high hydrophilicity, low surface roughness, and highly-efficient activation towards PAA oxidation. Using bovine serum albumin (BSA) as the model protein foulant, the PAA/FeOCl-CM catalytic filtration notably alleviated fouling occurring in both membrane pores and surface, and halved the flux reduction degree as compared with the conventional CM filtration. The PAA/FeOCl-CM catalytic oxidation allows quick and complete disintegration of BSA particles, via the breakage of the amide I and II bands and the ring opening of the aromatic amino acids (e.g., Tryptophan, Tyrosine). In-depth investigation revealed that the in situ generated •OH and 1O2 were the key reactive species towards BSA degradation during catalytic filtration, while the organic radical oxidation and the direct electron transfer pathway from BSA to PAA via FeOCl-CM played minor roles. Overall, our findings highlight a new PAA/CM catalytic filtration strategy for achieving highly-efficient membrane fouling control and provide an understanding of the integrated PAA catalytic oxidation - membrane filtration behaviors.
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Affiliation(s)
- Yumeng Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yanxin Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Xin Yu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Dezhen Kong
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Xinru Fan
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Runzhi Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Shuangjiang Luo
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Dongwei Lu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Jun Nan
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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5
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Wang L, Yang H, Kang L, Wu M, Yang Y. Highly dispersed of Ag/AgCl nanoparticles on exfoliated FeOCl nanosheets as photo-Fenton catalysts for pollutants degradation via accelerating Fe(II)/Fe(III) cycle. CHEMOSPHERE 2022; 296:134039. [PMID: 35189188 DOI: 10.1016/j.chemosphere.2022.134039] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
In this work, Ag/AgCl/FeOCl (Ag-Fe) catalysts were successfully prepared via multistep routes in which Ag was uniformly anchored to the enriched Cl sites provided by exfoliated FeOCl nanosheets. Among these Ag-Fe catalysts, 5% Ag-Fe exhibited the highest pseudo first-order kinetic constant 0.1056 min-1 for photo-Fenton degradation of Rhodamine B (RhB), which was 11 times higher than that of FeOCl (0.0096 min-1). Ag-Fe catalysts exposed more coordinatively unsaturated Fe active sites to coordinate with H2O2 due to the cleavage of Fe-Cl bond. The exposed coordinatively unsaturated Fe(III) active sites could capture the photoinduced electrons and reduce them to Fe(II), which boosted the separation efficiency of photogenerated charge carriers. Meanwhile, the photogenerated electrons of Ag0 transferred to the FeOCl, promoting the reduction of Fe(III) to Fe(II). In addition, the intensified visible light adsorption (SPR effect) was achieved after introducing Ag/AgCl nanoparticles on exfoliated FeOCl. Hydroxyl radicals (·OH) and holes (h+) were determined as the main reactive oxidative species (ROS) in the photo-Fenton degradation process.
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Affiliation(s)
- Lina Wang
- Key Laboratory of Integrated Regulation and Resource Development, on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Hanpei Yang
- Key Laboratory of Integrated Regulation and Resource Development, on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China.
| | - Li Kang
- Key Laboratory of Integrated Regulation and Resource Development, on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Mi Wu
- Key Laboratory of Integrated Regulation and Resource Development, on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Yuankun Yang
- Key Laboratory of Integrated Regulation and Resource Development, on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
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6
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Xuan F, Yan Z, Sun Z. Efficient degradation of diuron using Fe-Ce-LDH/13X as novel heterogeneous electro-Fenton catalyst. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Chen G, Fu Q, Tan X, Yang H, Luo Y, Shen M, Gu Y. Speciation and release risk of heavy metals bonded on simulated naturally-aged microplastics prepared from artificially broken macroplastics. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 295:118695. [PMID: 34921945 DOI: 10.1016/j.envpol.2021.118695] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 11/21/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
The negative impact of microplastics (MPs) act as metals vectors to environment and ecosystem have been paid more and more attention, and the accumulation risk of them to human body through the food chains and food webs needs to attract attention. In addition, the MPs bonded with heavy metals transport from river into the sea with high salinity may also have metals release risk. Herein, natural aged microplastics prepared from artificially broken macroplastics adsorbed with heavy metals accumulated from the natural environment were tested for their states and release risk in several simulated solution (NaCl and gastrointestinal solutions) to understand their effects on environment and human health. The adsorption capacity of different heavy metals on MPs was different during natural aging process proved by four-acid digestion method. Metals with high accumulation (including Pb, As, Cr, Mn, Ni, Zn, Co, Cu and Cd) on NAMPs were selected for further study. Results obtained via three-step extraction method showed that these heavy metals were mainly present as acid-extractable and reducible ions, which were characterized by high bioavailability. Release experiments suggested the notable Mn, Zn, As, Cr, Cu and Ni release in NaCl solution, and significant release of Mn, Zn, As, Cr, Cu, Pb and Ni in gastrointestinal solutions. The high metal release ratio in the simulated gastric solution was attributed to the weak binding of metal ions to NAMPs in acidic environment. This study will play a vital rule in assessing the ecological risks associated with MPs in natural environment.
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Affiliation(s)
- Gaobin Chen
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Qianmin Fu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China.
| | - Hailan Yang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Yang Luo
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Maocai Shen
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Yanling Gu
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, 410114, PR China
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8
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Xie M, Pan B, Li N, Zhao S, Yan J, Guo S, Chen Z, Wang H. 2D graphene/FeOCl heterojunctions with enhanced tribology performance as a lubricant additive for liquid paraffin. RSC Adv 2022; 12:2759-2769. [PMID: 35425281 PMCID: PMC8979217 DOI: 10.1039/d1ra06650a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 11/22/2021] [Indexed: 11/30/2022] Open
Abstract
The purpose of this study is to prepare graphene/FeOCl (G/FeOCl) heterojunctions via a microwave-pyrolysis approach and probe into the synergistic lubrication of G with FeOCl in liquid paraffin (LP). The morphology and chemical composition of specimens were analysed by utilizing scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS) techniques. The tribological property of G/FeOCl was determined, and the interaction between the G/FeOCl heterojunction and friction pair was carried out through simulation calculations. The results indicated that neither G nor FeOCl significantly improved the lubrication performance of LP. However, together with FeOCl, G as lubrication additives greatly improved the lubrication performance of LP. Under the load of 1.648 GPa, the mean friction coefficient and wear scar diameter of LP containing 0.20 wt% G/FeOCl were 66.1% and 44.7% inferior to those of pure LP, respectively. Scanning electron microscopy (SEM) and elemental mapping analyses of worn scars revealed the formation of G/FeOCl layer tribofilms that prevent direct contact between metals. In addition, the high interfacial energy between graphene and FeOCl calculated based on first-principles density functional theory (DFT) further confirmed that graphene and FeOCl simultaneously form friction films with wear resistance and wear reduction effect at the friction interface, which is consistent with the experimental results. This study, therefore, provides a pathway for low-friction lubricants by deploying G/FeOCl two-dimensional material systems. Graphene/FeOCl (G/FeOCl) heterojunctions were prepared by microwave-pyrolysis, thoroughly characterised and used to probe the synergistic lubrication of G with FeOCl in liquid paraffin. We provide a pathway for low-friction lubricants by deploying G/FeOCl 2D materials.![]()
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Affiliation(s)
- Mengxin Xie
- Institute of Henan Polymer Composites, School of Chemical Engineering, Henan University of Science and Technology 471000 Luoyang PR China
| | - Bingli Pan
- Institute of Henan Polymer Composites, School of Chemical Engineering, Henan University of Science and Technology 471000 Luoyang PR China .,National United Engineering Laboratory for Advanced Bearing Tribology, Henan University of Science and Technology 471000 Luoyang PR China
| | - Ning Li
- Institute of Henan Polymer Composites, School of Chemical Engineering, Henan University of Science and Technology 471000 Luoyang PR China
| | - Shuang Zhao
- Institute of Henan Polymer Composites, School of Chemical Engineering, Henan University of Science and Technology 471000 Luoyang PR China
| | - Junjiang Yan
- Institute of Henan Polymer Composites, School of Chemical Engineering, Henan University of Science and Technology 471000 Luoyang PR China
| | - Shihao Guo
- Institute of Henan Polymer Composites, School of Chemical Engineering, Henan University of Science and Technology 471000 Luoyang PR China
| | - Zhe Chen
- Institute of Henan Polymer Composites, School of Chemical Engineering, Henan University of Science and Technology 471000 Luoyang PR China
| | - Honggang Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 PR China
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Sun X, Zheng H, Jiang S, Zhu M, Zhou Y, Wang D, Fan Y, Hu L, Zhang D, Zhang L. New FeOCl/graphene quantum dots catalyst for peroxymonosulfate activation to efficiently remove organic pollutants and inactivate Escherichia coli. NEW J CHEM 2022. [DOI: 10.1039/d1nj05389b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The sulfate radical-based advanced oxidation processes (SR-AOPs) are well-established and efficient techniques for degradation of organic pollutants. Fe2+ is used as an environmentally friendly and cost-effective catalyst for activating peroxymonosulfate...
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Wei J, Feng X, Hu X, Yang J, Yang C, Liu B. Cu(II) doped FeOCl as an efficient photo-Fenton catalyst for phenol degradation at mild pH. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127754] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Yang F, Xia Y, Zhang B, Xu C, Yang W, Li Y. Flexible construction of RGO-encapsulated fine Pd/α-Fe2O3 composite with elevated Photo-Fenton reaction performance. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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12
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Tan C, Sheng T, Xu Q, Xu T, Sun K, Deng L, Xu W. Cobalt doped iron oxychloride as efficient heterogeneous Fenton catalyst for degradation of paracetamol and phenacetin. CHEMOSPHERE 2021; 263:127989. [PMID: 33297032 DOI: 10.1016/j.chemosphere.2020.127989] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/28/2020] [Accepted: 08/11/2020] [Indexed: 06/12/2023]
Abstract
Cobalt doped iron oxychloride (Co-FeOCl) was synthesized and employed as catalyst in Fenton degradation of paracetamol (APAP) and phenacetin (PNCT) for the first time. The catalytic performance was evaluated by means of various parameters including catalyst load, hydrogen peroxide (H2O2) dose and pH value. The high removal of APAP (87.5%) and PNCT (76.0%) was obtained under conditions of 0.2 g/L Co-FeOCl and 0.5 mM H2O2 at pH 7.0, with calculated pseudo-first order kinetic constants of 0.031 min-1 for APAP and 0.023 min-1 for PNCT. Particularly, quenching tests and in situ electron spin resonance (ESR) tests were employed for the identification of the reactive oxygen species (ROS) in system. Hydroxyl radical (·OH) and superoxide radical (O2-·) were the primary ROS in Co-FeOCl/H2O2 system. A possible mechanism for H2O2 activation by Co-FeOCl catalyst was proposed as well. Finally, the formation of typical disinfection by-products (DBPs) decreased slightly in Co-FeOCl/H2O2 pre-oxidation. However, stability and reusability of Co-FeOCl were deactivated in the consecutive three cycles.
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Affiliation(s)
- Chaoqun Tan
- School of Civil Engineering, Southeast University, Nanjing, 210096, China; Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing, 210096, China.
| | - Tianyu Sheng
- School of Civil Engineering, Southeast University, Nanjing, 210096, China
| | - Qinglong Xu
- School of Civil Engineering, Southeast University, Nanjing, 210096, China; Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing, 210096, China
| | - Tianhui Xu
- School of Civil Engineering, Southeast University, Nanjing, 210096, China
| | - Kechun Sun
- School of Civil Engineering, Southeast University, Nanjing, 210096, China
| | - Lin Deng
- School of Civil Engineering, Southeast University, Nanjing, 210096, China; Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing, 210096, China
| | - Wei Xu
- Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai, 200092, China
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Li T, He F, Liu B, Jia T, Shao B, Zhao R, Zhu H, Yang D, Gai S, Yang P. In Situ Synthesis of FeOCl in Hollow Dendritic Mesoporous Organosilicon for Ascorbic Acid-Enhanced and MR Imaging-Guided Chemodynamic Therapy in Neutral pH Conditions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:56886-56897. [PMID: 33290033 DOI: 10.1021/acsami.0c19330] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Chemodynamic therapy (CDT) based on the Fenton reaction is a promising strategy for nonlight cancer treatment. However, the traditional Fenton reaction is only efficient in strongly acidic conditions (pH = 2-4), resulting in the limited curative effect in a weakly acidic tumor microenvironment (TME). Herein, we first developed a simple in situ growth method to confine FeOCl nanosheets into hollow dendritic mesoporous organosilicon (H-DMOS) nanoparticles to obtain FeOCl@H-DMOS nanospheres. Ascorbic acid (AA) was then absorbed on the nanosystem as a H2O2 prodrug and, meanwhile, was used for the regeneration of Fentons reagent for Fe2+. Finally, poly(ethylene glycol) (PEG) was coated on FeOCl@H-DMOS-AA to enhance the permeability and retention (EPR) effect in tumor tissue. The as-fabricated FeOCl@H-DMOS-AA/PEG can generate a large amount of highly toxic hydroxyl radicals (•OH) by catalyzing H2O2 even in neutral pH conditions with the help of AA. As a result, the effect of CDT has been markedly enhanced by the increased amount of H2O2 and the efficient Fenton reaction in mild acidic TME, which can remove almost all of the tumors in mice. In addition, FeOCl also endows the nanosystem with T2-weighted MR imaging capability (r2 = 34.08 mM-1 s-1), thus realizing the imaging-guided cancer therapy. All in all, our study may contribute a new direction and may have a bright future for enhanced CDT with a neutral pH range.
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Affiliation(s)
- Tianyao Li
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Fei He
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Bin Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Tao Jia
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Boyang Shao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Ruoxi Zhao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | | | - Dan Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Shili Gai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
- College of Sciences, Heihe University, Heihe, Heilongjiang 164300, PR China
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14
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Wang Q, Wang X, He H. In situ oxidation and simultaneous adsorptive removal of Arsenite by layered double hydroxide based solid hydrogen peroxide. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123045. [PMID: 32590135 DOI: 10.1016/j.jhazmat.2020.123045] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/24/2020] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
The improvement of oxidant can enhance the efficiency and enlarge the application range of Fenton process a lot. Herein, a high efficient layered double hydroxide (LDH) based solid hydrogen peroxide (LDHSHP) was designed, synthesized, and occupied as oxidant/adsorbent for the treatment of Arsenite (As(III)) in wastewaters. In LDHSHP, hydrogen peroxide was introduced in and connected to CO32- interlayered, and the LDHSHP/Fe2+ system performed excellent in the range of pH 2.6-10.6. Hydroxyl radicals (·OH) played the main role in the oxidation of As(III), and the surface area of MgAl-LDH derived from LDHSHP was enlarged to about twice of that of LDHSHP. The increased surface area effectively promoted the adsorption of As(V). Almost 100 % of the obtained As(V) in water was immediately adsorptive removed. The adsorption capacity of LDHSHP derived MgAl-LDH for As(V) was detected to be 484.548 mg/g, and the adsorption fit the Langmuir model well and kinetic data was best described by the pseudo-second order model. The adsorption process was endothermic in the range of 298-308 K, while exothermic between 308 and 318 K. As(V) was calculated to be chemisorbed and reaction mechanism was proposed. LDHSHP is promising in the treatment of heavy metal-containing wastewaters.
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Affiliation(s)
- Qian Wang
- School of Materials Science and Chemical Engineering, Xi'an Technological University, Xi'an, 710021, PR China.
| | - Xiaofei Wang
- School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, PR China.
| | - Huairu He
- School of Materials Science and Chemical Engineering, Xi'an Technological University, Xi'an, 710021, PR China.
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15
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Quantitative investigation into the enhancing utilization efficiency of H2O2 catalyzed by FeOCl under visible light. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112072] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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16
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Song S, Wu K, Wu H, Guo J, Zhang L. Effect of Fe/Sn doping on the photocatalytic performance of multi-shelled ZnO microspheres: experimental and theoretical investigations. Dalton Trans 2019; 48:13260-13272. [DOI: 10.1039/c9dt02582k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A series of multi-shelled Fe3+/Sn4+-doped ZnO microspheres were synthesized by calcining carbon microspheres as sacrificial templates.
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Affiliation(s)
- Shaojia Song
- Key Laboratory for Green Chemical Process of Ministry of Education
- Wuhan Institute of Technology
- Wuhan
- PR China
- Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province
| | - Kun Wu
- Key Laboratory for Green Chemical Process of Ministry of Education
- Wuhan Institute of Technology
- Wuhan
- PR China
- Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province
| | - Huadong Wu
- Key Laboratory for Green Chemical Process of Ministry of Education
- Wuhan Institute of Technology
- Wuhan
- PR China
- Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province
| | - Jia Guo
- Key Laboratory for Green Chemical Process of Ministry of Education
- Wuhan Institute of Technology
- Wuhan
- PR China
- Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province
| | - Linfeng Zhang
- Key Laboratory for Green Chemical Process of Ministry of Education
- Wuhan Institute of Technology
- Wuhan
- PR China
- Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province
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