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

Xianguang Meng; Peixiao Zong; Liang Wang; Fan Yang; Weishu Hou; Songtao Zhang; Bingdong Li; Zhaoliang Guo; Shanshan Liu; Guifu Zuo; Yi Du; Tao Wang; Vellaisamy A.L. Roy

doi:10.1016/j.catcom.2019.105860

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

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

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

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.

Original language	English
Article number	105860
Journal	Catalysis Communications
Volume	134
DOIs	https://doi.org/10.1016/j.catcom.2019.105860
Publication status	Published - 10 Jan 2020
Externally published	Yes

Keywords

Au/ZnO
Hydrogen peroxide
Oxygen reduction
Photocatalysis

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10.1016/j.catcom.2019.105860

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title = "Au-nanoparticle-supported ZnO as highly efficient photocatalyst for H2O2 production",

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.",

keywords = "Au/ZnO, Hydrogen peroxide, Oxygen reduction, Photocatalysis",

author = "Xianguang Meng and Peixiao Zong and Liang Wang and Fan Yang and Weishu Hou and Songtao Zhang and Bingdong Li and Zhaoliang Guo and Shanshan Liu and Guifu Zuo and Yi Du and Tao Wang and Roy, {Vellaisamy A.L.}",

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doi = "10.1016/j.catcom.2019.105860",

language = "English",

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TY - JOUR

T1 - Au-nanoparticle-supported ZnO as highly efficient photocatalyst for H2O2 production

AU - Meng, Xianguang

AU - Zong, Peixiao

AU - Wang, Liang

AU - Yang, Fan

AU - Hou, Weishu

AU - Zhang, Songtao

AU - Li, Bingdong

AU - Guo, Zhaoliang

AU - Liu, Shanshan

AU - Zuo, Guifu

AU - Du, Yi

AU - Wang, Tao

AU - Roy, Vellaisamy A.L.

PY - 2020/1/10

Y1 - 2020/1/10

N2 - 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.

AB - 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.

KW - Au/ZnO

KW - Hydrogen peroxide

KW - Oxygen reduction

KW - Photocatalysis

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U2 - 10.1016/j.catcom.2019.105860

DO - 10.1016/j.catcom.2019.105860

M3 - Article

AN - SCOPUS:85074232118

SN - 1566-7367

VL - 134

JO - Catalysis Communications

JF - Catalysis Communications

M1 - 105860

ER -

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

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Keywords

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