Email this article Photocatalyst Bi(OH)SO4 · H2O with High Photocatalytic Performance
- Authors: Haojie Lu 1, Wang R.1, Zhang L.1, Chen D.1, Hao Q.1, Ma C.2, Yao W.2
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Affiliations:
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences
- Department of Chemistry, Tsinghua University
- Issue: Vol 92, No 10 (2018)
- Pages: 2075-2080
- Section: Photochemistry and Magnetochemistry
- URL: https://journal-vniispk.ru/0036-0244/article/view/170179
- DOI: https://doi.org/10.1134/S0036024418100084
- ID: 170179
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Abstract
In this work, Bi(OH)SO4 · H2O, a novel photocatalyst was prepared by a facile method. The sample was characterized by XRD, XPS, SEM, Mott-Schottky curve and ESR. The band gap of Bi(OH)SO4 · H2O is about 4.64 eV, and its CB and VB are estimated at –0.5 and 4.14 eV, respectively. Degradation of RhB and PhOH under UV light irradiation illustrates that the sample has good UV activity. The results of ESR spectra and tapping experiments indicate that the main active species in the photocatalytic reaction process are hydroxyl radicals, superoxide radicals and holes. A possible mechanism of catalytic degradation of organic pollutants was proposed. This semiconductor has a positive valence band and high oxidation capacity theoretically and it may have broad application in synthesizing highly efficient photocatalysts through doping other elements or creating heterojunctions.
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About the authors
Haojie Lu
Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences
Email: yaowq@tsinghua.edu.cn
China, Beijing, 100083
Ruiting Wang
Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences
Email: yaowq@tsinghua.edu.cn
China, Beijing, 100083
Linghua Zhang
Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences
Email: yaowq@tsinghua.edu.cn
China, Beijing, 100083
Daimei Chen
Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences
Author for correspondence.
Email: chendaimei@cugb.edu.cn
China, Beijing, 100083
Qiang Hao
Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences
Author for correspondence.
Email: haoqiang@cugb.edu.cn
China, Beijing, 100083
Chao Ma
Department of Chemistry, Tsinghua University
Email: yaowq@tsinghua.edu.cn
China, Beijing, 100084
Wenqing Yao
Department of Chemistry, Tsinghua University
Author for correspondence.
Email: yaowq@tsinghua.edu.cn
China, Beijing, 100084
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