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Cui J, Xu C, Jin Z, Liu H, Hu R, Liu F. Visible light photocatalysis: efficient Z-scheme LaFeO 3/g-C 3N 4/ZnO photocatalyst for phenol degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:96875-96890. [PMID: 37581730 DOI: 10.1007/s11356-023-29199-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 08/02/2023] [Indexed: 08/16/2023]
Abstract
In this work, a Z-scheme LaFeO3/g-C3N4/ZnO heterojunction photocatalyst with large specific surface (68.758 m2/g) and low cost (0.00035 times the cost of per gram of Au) was easily synthesized by glucose-assisted hydrothermal method. The structure, surface morphology, and optical properties of the photocatalyst were investigated. The constructed Z-scheme heterojunction catalysts can enhance the visible light absorption and carrier separation efficiency. Among these photocatalysts, the 10%-LaFeO3/g-C3N4/ZnO composite possesses the premium performance for efficient degrading 97.43% of phenol within 120 min. Even after 5 cycles, it still sustains an excellent photocatalytic stability (92.13% phenol degradation). According to the XPS surface states and the capture of active species on LaFeO3/g-C3N4/ZnO, the electrons would be transferred from ZnO and LaFeO3 to g-C3N4. In addition, ·OH plays an important role in photocatalytic reactions for phenol degradation. Thus, the proposed possible photocatalytic reaction mechanism of Z-scheme LaFeO3/g-C3N4/ZnO can provide a more economical and efficient conception for phenol degradation.
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Affiliation(s)
- Jinggang Cui
- Key Laboratory of Coal Chemistry, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, Inner Mongolia, China
| | - Chang Xu
- Key Laboratory of Coal Chemistry, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, Inner Mongolia, China
| | - Zehua Jin
- School of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC, 29634, USA
| | - Hongwei Liu
- School of Environmental Science, Zhejiang University, Zhejiang, 310058, Hangzhou, China
| | - Ruisheng Hu
- Key Laboratory of Coal Chemistry, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, Inner Mongolia, China
| | - Fenrong Liu
- Key Laboratory of Coal Chemistry, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, Inner Mongolia, China.
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Enhanced and recyclable CO2 photoreduction into methanol over S-scheme PdO/GdFeO3 heterojunction photocatalyst under visible light. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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Zhang Q, Guo F, Yu L, Wang B, Ding J, Fan L, Wu Y, Yang B, Xu Q. Efficient Degradation of Toluene over MnO 2/TiO 2 Nanobelts under Vacuum Ultraviolet Irradiation. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Qi Zhang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng224051, P. R. China
| | - Fang Guo
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng224051, P. R. China
| | - Liangyun Yu
- School of Light Industry, Beijing Technology and Business University, No. 11 Fucheng Road, Beijing100048, P. R. China
| | - Bailin Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng224051, P. R. China
| | - Jingya Ding
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng224051, P. R. China
| | - Lan Fan
- Yancheng Lanfeng Environmental Engineering Technology Co, Ltd, Yancheng224051, P. R. China
| | - Yifan Wu
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng224051, P. R. China
| | - Bairen Yang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng224051, P. R. China
| | - Qi Xu
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng224051, P. R. China
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Xu C, Jin Z, Yang J, Cui J, Hu J, Li Z, Chen C, Liu F, Hu R. High surface area B-doped LaFeO3/Ag/Ag3PO4 as a Z-scheme photocatalyst for facilitate phenol degradation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129668] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Enhanced photocatalytic performance of Magnetite/TS-1 thin film for phenol degradation. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Yu H, Wang M, Yan J, Dang H, Zhu H, Liu Y, Wen M, Li G, Wu L. Complete mineralization of phenolic compounds in visible-light-driven photocatalytic ozonation with single-crystal WO 3 nanosheets: Performance and mechanism investigation. JOURNAL OF HAZARDOUS MATERIALS 2022; 433:128811. [PMID: 35381509 DOI: 10.1016/j.jhazmat.2022.128811] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/21/2022] [Accepted: 03/26/2022] [Indexed: 06/14/2023]
Abstract
Complete mineralization of phenolic compounds into CO2 and H2O is desirable for removing them in wastewater, but it is challenging due to the generated recalcitrant intermediates, which requires highly effective advanced oxidation process with proper catalysts. Herein, we found that single-crystal WO3 nanosheets (NSs)-based photocatalytic ozonation (PCO) can realize complete mineralization of phenols (phenol and 2-chlorophenol) under visible light irradiation. Almost 100% mineralization ratio of phenols was achieved through WO3 NSs-based PCO system within short time. By comparing their performances with those of polycrystalline WO3 nanoparticles, detecting and analyzing the intermediates, identifying the dominant radicals and conducting some electrochemical characterizations, the origin of superior catalytic activity of WO3 NSs was uncovered, the mineralization pathways and the overall mechanism were proposed. The excellent PCO performance of WO3 NSs was contributed to their nanosheet morphology with single-crystal microstructure and good dispersion, which can provide continuous interior channels for the photogenerated charge transport from the bulk to surface of WO3 NSs and enough active sites for the surface reactions triggered by these charges. This work puts forwards new ideas to design highly active photocatalysts for PCO and helps deepen understanding of the catalytic mechanism of PCO.
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Affiliation(s)
- Haidong Yu
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Mingxi Wang
- Key Laboratory for Biomass-based Environment & Energy Materials in Petroleum & Chemical Industries, School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Jiabao Yan
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Hui Dang
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Hui Zhu
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Yuejin Liu
- Hubei Collaborative Innovation Center for Advanced Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, and College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Meicheng Wen
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Guisheng Li
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Ling Wu
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
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Lu L, Shu Q, Zhang G, Zhang Q, Du P, Zhu X. Mechanism in chlorine‐enhanced Pd catalyst for
H
2
O
2
in‐situ synthesis in
electro‐Fenton
system. AIChE J 2022. [DOI: 10.1002/aic.17787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Linhui Lu
- Department of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Qingli Shu
- Department of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Guiru Zhang
- Department of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Qi Zhang
- Department of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Ping Du
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment Ministry of Ecology and Environment Beijing China
| | - Xuedong Zhu
- Department of Chemical Engineering East China University of Science and Technology Shanghai China
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A Review of Titanium Dioxide (TiO2)-Based Photocatalyst for Oilfield-Produced Water Treatment. MEMBRANES 2022; 12:membranes12030345. [PMID: 35323821 PMCID: PMC8950424 DOI: 10.3390/membranes12030345] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 12/14/2022]
Abstract
Oilfield produced water (OPW) has become a primary environmental concern due to the high concentration of dissolved organic pollutants that lead to bioaccumulation with high toxicity, resistance to biodegradation, carcinogenicity, and the inhibition of reproduction, endocrine, and non-endocrine systems in aquatic biota. Photodegradation using photocatalysts has been considered as a promising technology to sustainably resolve OPW pollutants due to its benefits, including not requiring additional chemicals and producing a harmless compound as the result of pollutant photodegradation. Currently, titanium dioxide (TiO2) has gained great attention as a promising photocatalyst due to its beneficial properties among the other photocatalysts, such as excellent optical and electronic properties, high chemical stability, low cost, non-toxicity, and eco-friendliness. However, the photoactivity of TiO2 is still inhibited because it has a wide band gap and a low quantum field. Hence, the modification approaches for TiO2 can improve its properties in terms of the photocatalytic ability, which would likely boost the charge carrier transfer, prevent the recombination of electrons and holes, and enhance the visible light response. In this review, we provide an overview of several routes for modifying TiO2. The as-improved photocatalytic performance of the modified TiO2 with regard to OPW treatment is reviewed. The stability of modified TiO2 was also studied. The future perspective and challenges in developing the modification of TiO2-based photocatalysts are explained.
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