Controlled preparation of Ag-Cu2O nanocorncobs and their enhanced photocatalytic activity under visible light

被引：30

作者：

Yang, Siyuan ^{[1
]}

Zhang, Shengsen ^{[1
,2
]}

Wang, Hongjuan ^{[1
]}

Yu, Hao ^{[1
]}

Fang, Yueping ^{[2
]}

Peng, Feng ^{[1
]}

机构：

[1] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China

[2] South China Agr Univ, Coll Sci, Guangzhou 510642, Guangdong, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2015年 / 70卷

基金：

中国国家自然科学基金;

关键词：

Nanostructure; Composite; Chemical synthesis; Transmission electron microscopy; Catalytic properties; POTENTIAL BARRIER MODULATION; FACILE SYNTHESIS; CU2O MICROSPHERES; HIGHLY EFFICIENT; NANOWIRE ARRAYS; CUPROUS-OXIDE; NANOSPHERES; ADSORPTION; CU2O/TIO2; STABILITY;

D O I：

10.1016/j.materresbull.2015.04.061

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel corncob-like nano-heterostructured Ag-Cu2O photocatalyst has been controllably prepared by adjusting the synthetic parameters, and the possible formation mechanism has been also studied. The photoelectrochemical and photocatalytic performances demonstrated that the as-prepared Ag-Cu2O nanocorncobs exhibited higher photocatalytic activity than both pure Cu2O nanowires and cable-like Ag@Cu2O nano-composites. It was concluded that Ag-Cu2O nanocorncobs with suitably exposed Ag surface not only effectively inhibit the recombination of electron-hole pairs but also suitably increase the active sites of electronic conduction, and thus increasing the photocatalytic activity under visible light irradiation. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：296 / 302

页数：7

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