Sustained production of H2O2 in alkaline water solution using borate and phosphate-modified Au/TiO2 photocatalysts

Xianqiang Xiong; Xiao Zhang; Shengwei Liu; Jianjun Zhao; Yiming Xu

doi:10.1039/C8PP00177D

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Sustained production of H₂O₂ in alkaline water solution using borate and phosphate-modified Au/TiO₂ photocatalysts†

Xianqiang Xiong,^a Xiao Zhang,^a Shengwei Liu,^a Jianjun Zhao

^a and Yiming Xu

*^a

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* Corresponding authors

^a State Key Laboratory of Silicon Materials and Department of Chemistry, Zhejiang University, Hangzhou 310027, China
E-mail: xuym@zju.edu.cn

Abstract

UV irradiation of Au/TiO₂ photocatalysts in the presence of borate and phosphate anions can produce H₂O₂ at a millimolar level in alkaline water solution. The positive effect of the anions is ascribed to the anion-mediated hole transfer from Au/TiO₂ to an electron donor which thus accelerates the two-electron reduction of O₂ to H₂O₂.

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Article information

DOI: https://doi.org/10.1039/C8PP00177D
Article type: Communication
Submitted: 28 Apr 2018
Accepted: 02 Jul 2018
First published: 03 Jul 2018

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Photochem. Photobiol. Sci., 2018,17, 1018-1022

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Sustained production of H₂O₂ in alkaline water solution using borate and phosphate-modified Au/TiO₂ photocatalysts

X. Xiong, X. Zhang, S. Liu, J. Zhao and Y. Xu, Photochem. Photobiol. Sci., 2018, 17, 1018 DOI: 10.1039/C8PP00177D

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Photochemical & Photobiological Sciences