Au modified Bi2O3-TiO2 hybrid for photocatalytic synthesis of hydrogen peroxide

Liwei Feng; Bingdong Li; Yuqi Xiao; Lijuan Li; Yuqian Zhang; Qiannan Zhao; Guifu Zuo; Xianguang Meng; Vellaisamy A.L. Roy

Catalysis Communications (Jul 2021)

Au modified Bi2O3-TiO2 hybrid for photocatalytic synthesis of hydrogen peroxide

Liwei Feng,
Bingdong Li,
Yuqi Xiao,
Lijuan Li,
Yuqian Zhang,
Qiannan Zhao,
Guifu Zuo,
Xianguang Meng,
Vellaisamy A.L. Roy

Affiliations

Liwei Feng: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, PR China
Bingdong Li: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, PR China
Yuqi Xiao: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, PR China
Lijuan Li: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, PR China
Yuqian Zhang: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, PR China
Qiannan Zhao: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, PR China
Guifu Zuo: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, PR China
Xianguang Meng: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, PR China; Corresponding authors.
Vellaisamy A.L. Roy: James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK; Corresponding authors.

Journal volume & issue: Vol. 155
p. 106315

Abstract

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In this work, an Au modified Bi2O3-TiO2 (Au/Bi2O3-TiO2) hybrid is developed as a simple and effective photocatalyst for the production of H2O2. The modification of Bi2O3 improves the charge separation of photocatalyst and significantly enhances the photocatalytic activity of Au/TiO2 for H2O2 production. In-situ electron spin resonance studies shows stepwise single-electron oxygen reduction reaction (ORR) on the Au/Bi2O3-TiO2 photocatalyst for the production of H2O2. This work demonstrates the importance of heterojunction structure photocatalyst for improved performance of TiO2 in order to produce concentrated H2O2.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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