Mesoporous plasmonic Au-loaded Ta2O5 nanocomposites for efficient visible light photocatalysis

被引：81

作者：

Zhou, Chao ^{[1
]}

Shang, Lu ^{[1
]}

Yu, Huijun ^{[1
,2
]}

Bian, Tong ^{[1
,2
]}

Wu, Li-Zhu ^{[1
]}

Tung, Chen-Ho ^{[1
]}

Zhang, Tierui ^{[1
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 10049, Peoples R China

来源：

CATALYSIS TODAY | 2014年 / 225卷

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

Photocatalysis; Visible light; Mesoporous; Tantalum oxide; Water splitting; GOLD NANOPARTICLES; HIGHLY EFFICIENT; HYDROGEN GENERATION; TANTALUM OXIDE; TITANIUM-DIOXIDE; TIO2; IRRADIATION; WATER; EVOLUTION; METAL;

D O I：

10.1016/j.cattod.2013.10.085

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Au-loaded mesoporous Ta2O5 (Au/m-Ta2O5) with high visible light photocatalytic activities were successfully prepared via a facile photodeposition methodology. The photocatalytic activities of Au/m-Ta2O5 were then evaluated by photocatalytic hydrogen production from a methanol aqueous solution as well as photodegradation of Rhodamine B in aqueous solution under visible light irradiation (lambda > 400 nm). The photocatalytic experimental results showed that Au/m-Ta2O5 exhibited enhanced visible light photocatalytic activities than those of Au-loaded commercial bulk Ta2O5 (Au/b-Ta2O5). This was mainly due to its large specific surface area and mesoporous structure. The possible visible-light-driven photocatalytic mechanism of Au/Ta2O5 was also proposed. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：158 / 163

页数：6

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