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Synergism between Surface Engineering and S-Scheme Heterojunctions for Efficient Photocatalytic H2 Evolution

文献类型: 外文期刊

作者: Guo, Xin 1 ; Wen, Bo 1 ; Tang, Dong 2 ; Liu, Jiayue 1 ; Li, Youji 3 ; Jin, Zhiliang 1 ;

作者机构: 1.North Minzu Univ, Sch Chem & Chem Engn, Ningxia Key Lab Solar Chem Convers Technol, Key Lab Chem Engn & Technol,State Ethn Affairs Com, Yinchuan 750021, Peoples R China

2.Ningxia Acad Agr & Forestry Sci, Inst Agr Resources & Environm, Yinchuan 750021, Peoples R China

3.Jishou Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Mineral Cleaner Prod & Green Fu, Jishou 416000, Hunan, Peoples R China

期刊名称:CHEMISTRY OF MATERIALS ( 影响因子:7.0; 五年影响因子:8.1 )

ISSN: 0897-4756

年卷期: 2025 年 37 卷 15 期

页码:

收录情况: SCI

摘要: The sulfur modification of photocatalysts can significantly improve their performance, with widespread applications in photoelectrocatalysis and pollutant purification. In this article, sulfurization of NiWO4(NWO) leads to the formation of NiS-modified NiWO4 (NWS), which exhibits superior light absorption and electron transfer capabilities. The introduction of graphdiyne (GDY) into NWS was used to construct an NWS/GDY with S-scheme heterojunction. Experiments have shown that NWS/GDY exhibits lower impedance and stronger photocurrent response, which is attributed to the strong interface coupling between NWS and GDY and the construction of NiS, which inhibits electron-hole recombination and promotes the transfer of photogenerated electrons. In hydrogen evolution experiments, NWS/GDY achieves hydrogen production of 213.51 mu mol in 4 h. We utilize DFT calculations and in situ XPS analysis to deduce the mechanism of photocatalytic hydrogen evolution.

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