文献类型：期刊文献

英文题名：Rational Synthesis of Au-CdS Composite Photocatalysts for Broad-Spectrum Photocatalytic Hydrogen Evolution

作者：Xu, Zehong[1];Yue, Wenhui[1];Li, Chunchun[2];Wang, Lingzhi[1];Xu, Yikai[2];Ye, Ziwei[1];Zhang, Jinlong[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Multimedia Environm Catalysi, Sch Chem & Mol Engn, Key Lab Adv Mat,Joint Int Res Lab Precis Chem & Mo, Shanghai 200237, Peoples R China;[2]Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, North Ireland

年份：2023

卷号：17

期号：12

起止页码：11655

外文期刊名：ACS NANO

收录：;EI(收录号：20232614309921);WOS:【SCI-EXPANDED(收录号:WOS:001010288000001)】；

基金：This work was supported by National Key Research and Development Program of China (2022YFB3803600, 2022YFE0107900), the National Natural Science Foundation of China (22006038, 21972040), Shanghai Municipal Science and Technology Major Project (2018SHZDZX03), the Program of Introducing Talents of Discipline to Universities (B20031, B16017), Innovation Program of Shanghai Municipal Education Commission (2021-01-07-00-02-E00106), the Science and Technology Commission of Shanghai Municipality (22230780200, 20DZ2250400), and Fundamental Research Funds for the Central Universities (222201717003).

语种：英文

外文关键词：localized surface plasmon resonance; photocatalysis; hydrogen evolution; electromagnetic field; plasmonic metals

摘要：Incorporation of plasmonic metal nanomaterials can significantlyenhance the visible light response of semiconductor photocatalystsvia localized surface plasmon resonance (LSPR) mechanisms. However,the surfaces of plasmonic metal nanomaterials are often covered withsurfactant molecules, which is undesired when the nanomaterials areused for photocatalytic hydrogen evolution, since surfactant moleculescould significantly compromise the nanomaterials' cocatalystfunctionalities by blocking the active sites and/or by inhibitingthe surface charge transfer process. Herein, we demonstrate a methodthat assembles Au nanoparticles (NPs) into Au colloidosomes (AuCSs)without modifying their surfaces with surfactants. The resulting AuCSswere then coupled with CdS for the formation of Au-CdS compositephotocatalysts through an in situ deposition method.The assembly of Au NPs induced a broader and stronger LSPR responsefor AuCSs, while the absence of surfactants allowed them to act efficientlyas cocatalysts. This essentially enhanced the electron-holepair generation rate and further their utilization efficiency, leadingto an extremely high hydrogen evolution rate of 235.8 mmol center dot g(-1)center dot h(-1) under simulated sunlightexcitation.