Issue

Vol. 3 No. 3 (2011)

Effect of Gold Nanoparticles on the Photocatalytic and Photoelectrochemical Performance of Au Modified BiVO4

https://doi.org/10.1007/BF03353669
Mingce Long
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai 200240, China
Jingjing Jiang
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai 200240, China
Yan Li
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai 200240, China
Ruqiong Cao
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai 200240, China
Liying Zhang
Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai JiaoTong University, Shanghai, 200240, China
Weimin Cai
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai 200240, China

Corresponding Author: Mingce Long

long_mc@sjtu.edu.cn

Nano-Micro Letters, Vol. 3 No. 3 (2011), Article Number: 171-177

Abstract

An efficient visible light driven photocatalyst, gold nanoparticles (NPs) modified BiVO4 (Au/BiVO4), has been synthesized by deposition-precipitation with urea method. Au/BiVO4 exhibits enhanced photocatalytic activity for phenol degradation under λ>400 nm irradiation but negligible activity under λ>535 nm, indicating that the surface plasmon resonance (SPR) effect is too weak for organic photodegradation. According to the photoelectrochemical results of the porous powder electrodes of BiVO4 and Au/BiVO4, the SPR effect of Au NPs has been assessed. The role of Au NPs as electron sinks or sources, which is controllable by incident photon energy and applied potentials, has been discussed.

Keywords

Visible light Gold nanoparticles BiVO4 Surface plasmonic resonance Photocurrent
Long, Mingce, Jingjing Jiang, Yan Li, Ruqiong Cao, Liying Zhang, and Weimin Cai. 2011. “Effect of Gold Nanoparticles on the Photocatalytic and Photoelectrochemical Performance of Au Modified BiVO4”. Nano-Micro Letters 3 (3):171-77. https://doi.org/10.1007/BF03353669.
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