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Type: Journal article
Title: Significantly raised visible-light photocatalytic H₂ evolution on a 2D/2D ReS₂/In₂ZnS₄ van der Waals heterostructure
Other Titles: Significantly raised visible-light photocatalytic H(2) evolution on a 2D/2D ReS(2)/In(2)ZnS(4) van der Waals heterostructure
Author: Ran, J.
Zhang, H.
Qu, J.
Shan, J.
Davey, K.
Cairney, J.M.
Jing, L.
Qiao, S.
Citation: Small, 2021; 17(32):2100296-1-2100296-8
Publisher: Wiley
Issue Date: 2021
ISSN: 1613-6829
Statement of
Jingrun Ran, Hongping Zhang, Jiangtao Qu, Jieqiong Shan, Kenneth Davey, Julie M. Cairney, Liqiang Jing, and Shi-Zhang Qiao
Abstract: Owing to dwindling fossil fuels reserves, the development of alternative renewable energy sources is globally important. Photocatalytic hydrogen (H₂) evolution represents a practical and affordable alternative to convert sunlight into carbon-free H₂ fuel. Recently, 2D/2D van der Waals heterostructures (vdWHs) have attracted significant research attention for photocatalysis. Here, for the first time a ReS₂/In₂ZnS₄ 2D/2D vdWH synthesized via a facile physical mixing is reported. It exhibits a highly promoted photocatalytic H₂ -evolution rate of 2515 µmol h⁻¹ g⁻¹. Importantly, this exceeds that for pristine In₂ZnS₄ by about 22.66 times. This, therefore, makes ReS₂/In₂ZnS₄ one of the most efficient In₂ZnS₄ -based photocatalysts without noble-metal cocatalysts. Advanced characterizations and theoretical computations results show that interlayer electronic interaction within ReS₂/In₂ZnS₄ vdWH and atomic-level S active centers along the edges of ReS₂ NSs work collaboratively to result in the boosted light-induced H₂ evolution. Results will be of immediate benefit in the rational design and preparation of vdWHs for applications in catalysis/(opto)electronics.
Keywords: 2D/2D van der Waals heterostructures; atomic-level S active sites; photocatalytic hydrogen evolution; rhenium disulfide
Rights: © 2021 Wiley-VCH GmbH
DOI: 10.1002/smll.202100296
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Chemical Engineering publications

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