Inhibition of Sn(II) oxidation in Z-scheme BiVO4-QD@Sn3O4 for overall water splitting

Lu Chen; Chao Hou; Zhanqi Liu; Yang Qu; Mingzheng Xie; Weihua Han

doi:10.1039/D0CC05566B

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Inhibition of Sn(ii) oxidation in Z-scheme BiVO₄-QD@Sn₃O₄ for overall water splitting†

Lu Chen,^a Chao Hou,^a Zhanqi Liu,^b Yang Qu,

^c Mingzheng Xie

*^a and Weihua Han

*^b

Author affiliations

* Corresponding authors

^a Key Laboratory of Western China's Environmental Systems of the Ministry of Education, Key Laboratory for Environmental Pollution Prediction and Control of Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
E-mail: xiemzh@lzu.edu.cn

^b School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
E-mail: hanwh@lzu.edu.cn

^c Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education), School of Chemistry and Materials Science, International Joint Research Center for Catalytic Technology, Heilongjiang University, Harbin, China

Abstract

In this work, it is verified that the preferred oxidation of Sn²⁺ in Sn₃O₄ during photocatalysis is the main cause for inefficient oxygen evolution. This could be inhibited by depositing BiVO₄-QDs attributed to Z-scheme charge transfer. This inhibition, along with promoted charge separation, leads to the achievement of overall water-splitting.

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Article information

DOI: https://doi.org/10.1039/D0CC05566B
Article type: Communication
Submitted: 15 Aug 2020
Accepted: 10 Oct 2020
First published: 12 Oct 2020

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Chem. Commun., 2020,56, 13884-13887

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Inhibition of Sn(II) oxidation in Z-scheme BiVO₄-QD@Sn₃O₄ for overall water splitting

L. Chen, C. Hou, Z. Liu, Y. Qu, M. Xie and W. Han, Chem. Commun., 2020, 56, 13884 DOI: 10.1039/D0CC05566B

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