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MoS2/Ag2CO3 Z-scheme system with enhancing water splitting photocatalytic activity

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Abstract

A novel MoS2/Ag2CO3 Z-scheme system was synthesized by a simple chemical depositing method. The morphology and material components of MoS2/Ag2CO3 Z-scheme system were confirmed by scanning electron microscopy and Raman spectroscopy. Photoelectrochemical (PEC) tests demonstrated that the photocurrent density of MoS2/Ag2CO3 Z-scheme system can reach up to 13 µA/cm2 in 0.5 M Na2SO4 solution at a bias voltage of 0.5 V, which is 44 times more than pure MoS2, as well as 13 times higher than pure Ag2CO3. Lastly, the stability measurement of MoS2/Ag2CO3 Z-scheme system in 0.5 M Na2SO4 solution was carried out showing no obvious difference after processing 50 cycles. This work demonstrates that the MoS2/Ag2CO3 Z-scheme system may have a great potential application in photocatalytic water splitting.

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Acknowledgements

This work was supported by the Grants from Scientific Research Fund of Hunan Provincial Education Department (No. 18A059), the Program for Changjiang Scholars and Innovative Research Team in University (IRT_17R91), and Science and Technology Program of Xiangtan (No. CXY-ZD20172002).

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  1. Hunan Key Laboratory of Micro-Nano Energy Materials and Devices and Laboratory for Quantum Engineering and Micro-Nano Energy Technology, School of Physics and Optoelectronic, Xiangtan University, Xiangtan, 411105, Hunan, People’s Republic of China

    Chenglin Zhou, Gengcheng Liao, Hui Qiao & Xiang Qi

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Zhou, C., Liao, G., Qiao, H. et al. MoS2/Ag2CO3 Z-scheme system with enhancing water splitting photocatalytic activity. Appl. Phys. A 127, 29 (2021). https://doi.org/10.1007/s00339-020-04210-0

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