CuOx-TiO2 junction: what is the active component for photocatalytic H2 production?

被引：108

作者：

Wang, Zhonglei ^{[1
]}

Liu, Yuanxu ^{[1
]}

Martin, David James ^{[2
]}

Wang, Wendong ^{[1
]}

Tang, Junwang ^{[2
]}

Huang, Weixin ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem Phys, Hefei Natl Lab Phys Sci Microscale, CAS Key Lab Mat Energy Convers, Hefei 230026, Peoples R China

[2] UCL, Dept Chem Engn, London WC1E 7JE, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2013年 / 15卷 / 36期

基金：

中国国家自然科学基金;

关键词：

TIO2 NANOTUBE PHOTOCATALYST; HYDROGEN-PRODUCTION; IN-SITU; CU; DECOMPOSITION; GENERATION; CATALYST;

D O I：

10.1039/c3cp52496e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

CuOx based junctions e. g. CuOx-TiO2 have been demonstrated to be very effective in photocatalytic H-2 production, but the active component at the junction is less understood. We herein report that an as-prepared CuOx-TiO2 photocatalyst undergoes an in situ restructuring process during photocatalytic H-2 production under solar light irradiation to form the active Cu2O-TiO2 interfacial structure on the surface. These results unambiguously demonstrate that Cu2O is the active copper species in CuOx-TiO2 photocatalysts.

引用

页码：14956 / 14960

页数：5

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