Issue

Vol. 9 No. 2 (2017)

BiVO4/TiO2(N2) Nanotubes Heterojunction Photoanode for Highly Efficient Photoelectrocatalytic Applications

https://doi.org/10.1007/s40820-016-0115-3
Rui Wang
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
Jing Bai
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
Yunpo Li
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
Qingyi Zeng
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
Jinhua Li
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
Baoxue Zhou
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China

Corresponding Author: Baoxue Zhou

zhoubaoxue@sjtu.edu.cn

Nano-Micro Letters, Vol. 9 No. 2 (2017), Article Number: 14

Abstract

We report the development of a novel visible response BiVO4/TiO2(N2) nanotubes photoanode for photoelectrocatalytic applications. The nitrogen-treated TiO2 nanotube shows a high carrier concentration rate, thus resulting in a high efficient charge transportation and low electron–hole recombination in the TiO2–BiVO4. Therefore, the BiVO4/TiO2(N2) NTs photoanode enabled with a significantly enhanced photocurrent of 2.73 mA cm−2 (at 1 V vs. Ag/AgCl) and a degradation efficiency in the oxidation of dyes under visible light. Field emission scanning electron microscopy, X-ray diffractometry, energy-dispersive X-ray spectrometer, and UV–Vis absorption spectrum were conducted to characterize the photoanode and demonstrated the presence of both metal oxides as a junction composite.

Keywords

BiVO4 TiO2(N2) nanotube Heterojunction Photoelectrocatalytic Degradation of dyes
Wang, Rui, Jing Bai, Yunpo Li, Qingyi Zeng, Jinhua Li, and Baoxue Zhou. 2016. “BiVO4/TiO2(N2) Nanotubes Heterojunction Photoanode for Highly Efficient Photoelectrocatalytic Applications”. Nano-Micro Letters 9 (2):14. https://doi.org/10.1007/s40820-016-0115-3.
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