文献类型：期刊文献

英文题名：Construction of bimetallic sulfide/carbon nitride nanocomposites for photocatalytic hydrogen evolution from simulated or natural seawater

作者：Xiao, Qiaoyi[2];Fan, Yaoyao[1];Zhou, Li[1];Gu, Qiqi[1];Yan, Feifei[1];Lian, Yuan[2];Wang, Hongmei[1];Yi, Jie[2];Cao, Miao[2];Wang, Xiao[3]

机构：[1]Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R China;[2]Jiaxing Univ, Coll Mat & Text Engn, Jiaxing 314001, Peoples R China;[3]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China

年份：2026

卷号：472

外文期刊名：JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY

收录：;EI(收录号：20253919250250);WOS:【SCI-EXPANDED(收录号:WOS:001586503800003)】；

基金：This work was financially supported by the Natural Science Foun-dation of Zhejiang Province (No. LY22E020009) and Jiaxing Science and Technology Project (No. 2024AD10058) .

语种：英文

外文关键词：Carbon nitride; S-scheme heterojunction; Seawater splitting for hydrogen evolution; DFT

摘要：ZnCo2S4/g-C3N4 (ZCS/CNN) nanocomposites were synthesized using the impregnation method and employed for photocatalytic hydrogen evolution from various water sources. The structural, morphological, and photo-electrochemical properties were also thoroughly examined. The optimized 10 % ZCS/CNN nanocomposite demonstrated hydrogen production rates of 358.9 mu mol center dot g-1 center dot h-1 in deionized water, 726.5 mu mol center dot g-1 center dot h-1 in simulated seawater, 656.3 mu mol center dot g-1 center dot h-1 in Bohai seawater, and 516.4 mu mol center dot g-1 center dot h-1 in Zhoushan seawater, outperforming both CNN and ZCS. Besides its exceptional photocatalytic performance, the catalyst exhibited high stability over four cycles. The enhanced activity is primarily attributed to the formation of an S-scheme heterojunction, which lowers reactive impedance, increases photocurrent, and promotes efficient electron-hole separation. The g-C3N4-based photocatalytic materials developed in this study hold promise for practical applications in marine hydrogen production.