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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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