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Xie Z, Xiao G, Zeng X, Yang M, Yao J. Ion-exchange synthesis Ag@Bi2WO6/FeWO4 nanosheet with white-LED-light-driven for efficient activation of peroxymonosulfate: synthesis, characterization, and mechanism. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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Ma C, Wei J, Jiang K, Chen J, Yang Z, Yang X, Yu G, Zhang C, Li X. Typical layered structure bismuth-based photocatalysts for photocatalytic nitrogen oxides oxidation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 855:158644. [PMID: 36096216 DOI: 10.1016/j.scitotenv.2022.158644] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/03/2022] [Accepted: 09/06/2022] [Indexed: 06/15/2023]
Abstract
Traditional NOx treatment methods require external reducing reagents and harsh reaction conditions, which is not conducive to effectively eliminate NOx at low concentration, especially at ppb levels. Fortunately, low concentration NOx can be removed by photocatalytic oxidation under mild reaction conditions. Bismuth (Bi)-based photocatalysts with the layered structure have obtained considerable concerns of photocatalytic NOx oxidation. This review focused on typical layered Bi-based photocatalysts (Bi2WO6, Bi2O2CO3, BiOY (YCl, Br, and I), BiOIO3, and BiOCOOH) with the structure of [Bi2O2]2+ layer for photocatalytic NOx oxidation. The strategies (morphological control, defect engineering, heterostructure construction, etc.) to improve photocatalytic oxidation activity were summarized. Furthermore, the mechanism involving various free radicals (hydroxyl radical, superoxide radical, etc.) of photocatalytic oxidation of NOx was proposed. In addition, the non-NO2 selectivity was also illuminated. Lastly, the current drawbacks and further research directions for photocatalytic NOx oxidation were elaborated. The development of photocatalysts with high photocatalytic activity, wide light absorption range, and non-NO2 selectivity is the focus of future research. This review aims to provide a pandect and theoretical guidance for the practical application of photocatalytic oxidation of NOx.
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Affiliation(s)
- Chi Ma
- College of Environmental Science & Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Jingjing Wei
- College of Environmental Science & Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Kainian Jiang
- Yongzhou Environmental Monitoring Station, Yongzhou 425000, China
| | - Jiaqi Chen
- Zhuzhou water Investment Group Co., Ltd., Zhuzhou 412000, China
| | - Zhongzhu Yang
- College of Environmental Science & Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Xu Yang
- College of Environmental Science & Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Guanlong Yu
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410076, China
| | - Chang Zhang
- College of Environmental Science & Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
| | - Xin Li
- College of Environmental Science & Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
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Li N, Wang C, Zhang K, Lv H, Yuan M, Bahnemann DW. Progress and prospects of photocatalytic conversion of low-concentration NO. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(22)64139-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Xu J, Wang Y, Niu J, Chen M. Facile construction of BiOBr/BiOCOOH p-n heterojunction photocatalysts with improved visible-light-driven photocatalytic performance. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.05.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Xu J, Wang Y, Niu J, Chen M, Teng F. Preparation of Bi2MoO6–BiOCOOH plate-on-plate heterojunction photocatalysts with significantly improved photocatalytic performance under visible light irradiation. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.02.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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