Edge-enriched laminar hexagonal (2H) MoSe₂-anchored sulfur vacancies-rich ReS₂ nanoflowers for boosted light-to-hydrogen conversion
Date
2023
Authors
Zhu, C.
He, Q.
Sun, T.
Xu, M.
Wang, J.
jin, Q.
Chen, C.
Duan, X.
Xu, H.
Wang, S.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Chemical Engineering Journal, 2023; 464:142704-1-142704-10
Statement of Responsibility
Chengzhang Zhu, Qiuying He, Tianyu Sun, Mutao Xu, Jin Wang, Qijie jin, Chuanxiang Chen, Xiaoguang Duan, Haitao Xu, Shaobin Wang
Conference Name
Abstract
Developing innovative S-scheme photocatalytic systems with highly active catalysts are of huge interest in converting solar energy into hydrogen in a sustainable manner. Herein, sulfur vacancies (Sv)-rich hierarchical flower-like ReS2-hybridized laminar hexagonal (2H) MoSe2 (2H-MoSe2) were constructed for water splitting. Systematic studies show that interfacial chemical interaction of Mo–S bond and built-in electric field induce the S-scheme charge transfer mode, as verified by the generated superoxide radicals, band structures, and density functional theory calculation. With the intense cooperative effects of Mo–S bonds, S-vacancies, and internal electric field, the optimized Sv-ReS2/2H-MoSe2 heterojunction concurrently attains populated exposed active sites, superior electron-hole separation efficiency, and intensive affinity to reactant water molecules, achieving a maximum hydrogen production rate of 78.2 μmol/h with an apparent quantum yield of 9.3% at 420 nm, which is approximately 5.9-fold greater than pristine ReS2. This work paves a new avenue to engineering S-scheme catalysts for sustainable solar-to-fuel conversion.
School/Discipline
Dissertation Note
Provenance
Description
Available online 31 March 2023
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Rights
© 2023 Published by Elsevier B.V.