Issue 41, 2023

Construction of an S-scheme Bi2S3/CdIn2S4 heterojunction for the photocatalytic generation of methyl formate

Abstract

Photocatalytic reduction of CO2 to valuable chemicals is one of the important solutions to the problems of global warming and energy shortage. Here, a Bi2S3/CdIn2S4 S-scheme heterojunction was constructed by a simple solvothermal method, which greatly facilitated the segregation and migration of photogenerated charge carriers. The optimized heterojunction achieved an efficient methyl formate (MF) generation rate (5464 μmol h−1 g−1) in the photocatalytic CO2/methanol reduction system, which was about 29-fold that of pure Bi2S3. The preliminary mechanism of the photocatalytic system over the S-scheme Bi2S3/CdIn2S4 heterojunction was proposed using in situ technology and experimental comparison. This work provides insights into the application of metal sulfide heterojunctions in the field of MF research and the photocatalytic CO2/methanol reduction system.

Graphical abstract: Construction of an S-scheme Bi2S3/CdIn2S4 heterojunction for the photocatalytic generation of methyl formate

Supplementary files

Article information

Article type
Paper
Submitted
04 Jul 2023
Accepted
25 Sep 2023
First published
10 Oct 2023

New J. Chem., 2023,47, 19235-19242

Construction of an S-scheme Bi2S3/CdIn2S4 heterojunction for the photocatalytic generation of methyl formate

L. Sun, W. Wu, R. Wei, L. Gao, J. Zhang, G. Xiao and X. Pan, New J. Chem., 2023, 47, 19235 DOI: 10.1039/D3NJ03111J

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