Au-nanoparticle-supported ZnO as highly efficient photocatalyst for H2O2 production

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Meng, Xianguang
Zong, Peixiao
Wang, Liang
Yang, Fan
Hou, Weishu
Zhang, Songtao
Li, Bingdong
Guo, Zhaoliang
Liu, Shanshan
Zuo, Guifu
Du, Yi
Wang, Tao
Roy, Vellaisamy AL
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2020
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Abstract

In this study, Au-nanoparticle-supported crystalline ZnO (Au/ZnO) is found to be a simple and efficient photocatalyst for direct H2O2 synthesis in an aerated aqueous solution. Compared with widely studied Au-nanoparticle-supported anatase TiO2 photocatalyst, Au/ZnO shows almost one order of magnitude higher activity in H2O2 production. The site-specific deposition of smaller Au nanococatalyst on ZnO delivers best photocatalytic performance and the H2O2 production is relatively stable with a rate more than 1.5 mmol L−1 h−1. The electron spin resonance studies reveal that the H2O2 is produced through direct 2e− oxygen reduction over the optimized Au/ZnO photocatalyst.

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Catalysis Communications

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134

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Physical chemistry

Chemical engineering

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Meng, X; Zong, P; Wang, L; Yang, F; Hou, W; Zhang, S; Li, B; Guo, Z; Liu, S; Zuo, G; Du, Y; Wang, T; Roy, VAL, Au-nanoparticle-supported ZnO as highly efficient photocatalyst for H2O2 production, Catalysis Communications, 2020, 134, pp. 105860

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