Preparation of Au-BiVO4 Heterogeneous Nanostructures as Highly Efficient Visible-Light Photocatalysts

被引：271

作者：

Cao, Shao-Wen ^{[1
]}

Yin, Zhen ^{[1
]}

Barber, James ^{[1
,2
,3
]}

Boey, Freddy Y. C. ^{[1
]}

Loo, Say Chye Joachim ^{[1
]}

Xue, Can ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Solar Fuels Lab, Singapore 639798, Singapore

[2] Univ London Imperial Coll Sci Technol & Med, Div Mol Biosci, London SW7 2AZ, England

[3] Politecn Torino, Dept Mat Sci & Chem Engn, BioSolar Lab, I-10129 Turin, Italy

来源：

ACS APPLIED MATERIALS & INTERFACES | 2012年 / 4卷 / 01期

关键词：

electron transfer; heterojunction; photocatalyst; water splitting; surface plasmon resonance; ELECTRONIC-STRUCTURE; OPTICAL-PROPERTIES; PARTICLE-SIZE; WATER; TIO2; MECHANISM; NANOPARTICLES; DEGRADATION; IRRADIATION; HYDROGEN;

D O I：

10.1021/am201481b

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Au-BiVO4 heterogeneous nanostructures have been successfully prepared through in situ growth of gold nanoparticles on BiVO4 microtubes and nanosheets via a cysteine-linking strategy. The experimental results reveal that these Au-BiVO4 heterogeneous nanostructures exhibit much higher visible-light photocatalytic activities than the individual BiVO4 microtubes and nanosheets for both dye degradation and water oxidation. The enhanced photocatalytic efficiencies are attributed to the charge transfer from BiVO4 to the attached gold nanoparticles as well as their surface plasmon resonance (SPR) absorption. These new heteronanostructures are expected to show considerable potential applications in solar-driven wastewater treatment and water splitting.

引用

页码：418 / 423

页数：6

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