文献类型：期刊文献

英文题名：Heterostructuring Uniform 2D CdS on Ru/Ti3C2-TiO2 via In situ Oxidized Ru-Loaded MXene for Boosting Photocatalytic H2 Production

作者：Liu, Qiaona[1];Han, Xin[1,2];Qian, An[1];Qian, Jiayu[1];Pu, Xin[1];Ye, Lei[1];Zhan, Jinshan[3];Zhang, Jian[3];Yang, Qiang[2];Liu, Jichang[1,4]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Green Chem Engn & Ind Catalysis, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[3]Xinjiang Jiayuheng Energy Technol Co Ltd, Huyanghe 834009, Peoples R China;[4]Shihezi Univ, Sch Chem & Chem Engn, State Key Lab Incubat Base Green Proc Chem Engn, Shihezi 832003, Xinjiang, Peoples R China

年份：2025

卷号：21

期号：2

外文期刊名：SMALL

收录：;EI(收录号：20244617342044);WOS:【SCI-EXPANDED(收录号:WOS:001355424800001)】；

基金：X.H. contributed equally to this work. The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (No.: 22108074), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：CdS; heterostructures; photocatalytic H-2 evolution; Ti3C2 MXene; TiO2

摘要：Building heterojunctions and exposing more catalytic active sites are effective strategies to enhance the photocatalytic hydrogen evolution activity. Herein, TiO2 nanosheets are oxidized in situ on Ru-loaded MXene as carriers and subsequently loaded with uniform 2D CdS via hydrothermal method to obtain 2D Ru/Ti3C2-TiO2/CdS composite photocatalysts that integrate heterojunctions and cocatalysts. The formation of heterojunction between CdS and TiO2 is conducive to promoting the separation and transfer of photogenerated charges, simultaneously, Ru/Ti3C2 with the fully exposed Ru and Ti3C2 can act as effective active sites of photocatalytic hydrogen production reaction. The composite photocatalyst exhibits an improved hydrogen production rate with 5479 mu mol g(-1) h(-1), which is 5, 3, and four times more than that of pristine CdS, CdS loaded Ti3C2-TiO(2 )and CdS loaded Ru-TiO2 respectively. The results reveal that the notable enhancement in performance can primarily be ascribed to the introduction of the TiO2/CdS heterojunction and the efficient cocatalysts of Ru/Ti3C2. Moreover, the 2D Ti3C2 with high conductivity as carriers can increase charge transfer, and its 2D structure can serve as a template for growing 2D photocatalysts with higher activity. The interface engineering with multiple interfaces can offer novel insights for the advancement of efficient hydrogen evolution reaction catalysts.