Issue 31, 2021

MoC/MAPbI3 hybrid composites for efficient photocatalytic hydrogen evolution

Abstract

Metal halide perovskites, such as iodine methylamine lead (MAPbI3), have received extensive attention in the field of photocatalytic decomposition of HI for hydrogen evolution, due to their excellent photoelectric properties. In this paper, a new MAPbI3-based composite, MoC/MAPbI3, was synthesized. The results show that 15 wt% MoC/MAPbI3 has the best hydrogen production performance (38.4 μmol h−1), which is approximately 24-times that of pure MAPbI3 (1.61 μmol h−1). With the extension of the catalytic time, the hydrogen production rate of MoC/MAPbI3 reached 165.3 μmol h−1 after 16 h due to the effective separation and transfer of charge carriers between MoC and MAPbI3, showing excellent hydrogen evolution rate performance under visible light. In addition, the cycling stability of MoC/MAPbI3 did not decrease in multiple 4 h cycle tests. This study used the non-precious metal promoter MoC to modify MAPbI3, and provides a new idea for the synthesis of efficient MAPbI3-based composite catalysts.

Graphical abstract: MoC/MAPbI3 hybrid composites for efficient photocatalytic hydrogen evolution

Supplementary files

Article information

Article type
Paper
Submitted
03 Jun 2021
Accepted
14 Jul 2021
First published
15 Jul 2021

Dalton Trans., 2021,50, 10860-10866

MoC/MAPbI3 hybrid composites for efficient photocatalytic hydrogen evolution

T. Zhang, J. Yu, J. Huang, S. Lan, Y. Lou and J. Chen, Dalton Trans., 2021, 50, 10860 DOI: 10.1039/D1DT01809D

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