Construction of CYANO-COF/ZnIn2S4 S-scheme heterojunction for boosted photocatalytic hydrogen generation
文献类型： 外文期刊
作者： Ran, Huili 1 ; Liu, Xue 2 ; Ye, Langhuan 1 ; Fan, Jiajie 3 ; Zhu, Bicheng 4 ; Xu, Quanlong 1 ; Wei, Yuechang 5 ;
作者机构： 1.Wenzhou Univ, Coll Chem & Mat Engn, Zhejiang Int Joint Lab Opt Funct Mat, Wenzhou Key Lab Adv Energy Storage & Convers, Wenzhou 325027, Peoples R China
2.Chinese Acad Agr Sci, Inst Tobacco Res, Qingdao 266101, Peoples R China
3.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
4.China Univ Geosci, Fac Mat Sci & Chem, Lab Solar Fuel, Wuhan 430078, Peoples R China
5.China Univ Petr, Coll Sci, State Key Lab Heavy Oil Proc, Key Lab Opt Detect Technol Oil & Gas, Beijing 102249, Peoples R China
关键词： Photocatalytic hydrogen generation; Covalent organic frameworks; S -scheme heterojunction
期刊名称：JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY （ 影响因子：14.3； 五年影响因子：12.4 ）
ISSN： 1005-0302
年卷期： 2025 年 234 卷
页码：
收录情况： SCI
摘要： Covalent organic framework (COF)-based heterojunction has emerged as a promising photocatalyst toward solar-to-fuel conversion. However, achieving high charge carrier separation efficiency and superior photocatalytic performance still remain a significant challenge. Herein, CYANO-COF was integrated with ZnIn2 S4 via a facile in-situ growth method, thus forming CYANO-COF/ZnIn2 S4 heterojunction. According to the in-situ light irradiation X-ray photoelectron spectroscopy (XPS) characterization and theoretical calculation, CYANO-COF/ZnIn2 S4 heterojunction was verified to adopt an S-scheme charge transfer mechanism capable of fast charge carrier transfer rate and strong redox ability. As a result, the optimized CYANO- COF/ZnIn2 S4 -7.5 % exhibited a superior photocatalytic hydrogen production rate of 129.1 mmol g-1 h-1 , which was 3.9 and 56 times higher than that of pristine CYANO-COF (33.2 mmol g-1 h-1 ) and ZnIn2 S4 (2.3 mmol g-1 h-1 ), respectively, and the apparent quantum efficiency (AQE) at 420 nm was 20.5 %. The study shed light on the great promising of COF-based organic/inorganic S-scheme heterojunction toward solar fuel generation. (c) 2025 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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