Citation: Shengsen Zhang, Jie Yan, Siyuan Yang, Yuehua Xu, Xin Cai, Xin Li, Xiangchao Zhang, Feng Peng, Yueping Fang. Electrodeposition of Cu₂O/g-C₃N₄ heterojunction film on an FTO substrate for enhancing visible light photoelectrochemical water splitting[J]. Chinese Journal of Catalysis, ;2017, 38(2): 365-371. doi: 10.1016/S1872-2067(16)62588-3 shu

Electrodeposition of Cu₂O/g-C₃N₄ heterojunction film on an FTO substrate for enhancing visible light photoelectrochemical water splitting

Shengsen Zhang ^a,b, ,
Jie Yan ^a ,
Siyuan Yang ^a ,
Yuehua Xu ^a ,
Xin Cai ^a ,
Xin Li ^a ,
Xiangchao Zhang ^c ,
Feng Peng ^b ,
Yueping Fang ^a

a College of Materials and Energy, South China Agricultural University, Guangzhou 510643, Guangdong, China;
b School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China;
c Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha 410022, Hunan, China

Received Date: 20 August 2016
Revised Date: 29 October 2016

Fund Project: This work was supported by the National Natural Science Foundation of China (21173088), the Science and Technology Project of Guangdong Province (2014A030312007, 2015A050502012, 2016A010104013), the China Postdoctoral Science Foundation (2016M592493), and the Open Research Fund of Hunan Key Laboratory of Applied Environmental Photocatalysis (CCSU-XT-06), Changsha University.

An immobilized Cu₂O/g-C₃N₄ heterojunction film was successfully made on an FTO substrate by electrophoretic deposition of g-C₃N₄ on a Cu₂O thin film. The photoelectrochemical (PEC) performance for water splitting by the Cu₂O/g-C₃N₄ film was better than pure g-C₃N₄ and pure Cu₂O film. Under -0.4 V external bias and visible light irradiation, the photocurrent density and PEC hydrogen evolution efficiency of the optimized Cu₂O/g-C₃N₄ film was -1.38 mA/cm² and 0.48 mL h^-1 cm^-2, respectively. The enhanced PEC performance of Cu₂O/g-C₃N₄ was attributed to the synergistic effect of light coupling and a matching energy band structure between g-C₃N₄ and Cu₂O as well as the external bias.
- Cuprous oxide,
- Graphitic carbon nitride,
- Heterojunction film,
- Electrodeposition,
- Visible light,
- Photoelectrochemical water splitting,
- Hydrogen evolution
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通讯作者: 陈斌, bchen63@163.com

Electrodeposition of Cu₂O/g-C₃N₄ heterojunction film on an FTO substrate for enhancing visible light photoelectrochemical water splitting