典型文献
Enhanced Photocatalytic H2-production Activity of CdS Nanoflower using Single Atom Pt and Graphene Quantum Dot as Dual Cocata-lysts
文献摘要：
Single-atom catalysts have high catalytic activity due to their unique quantum size effects and optimal atom utilization. Herein, visible-light-responsive photocatalysts were designed by coupling CdS with gra-phene quantum dots (GQDs) and platinum single atoms (PtSAs). GQDs and PtSAs were successively loaded on ultrathin CdS nanosheets through freeze-drying and in-situ photocatalytic reduction. The synergistic effect be-tween PtSAs and GQDs results in superior photocatalytic activity with a hy-drogen production rate of 13488 μmol h-1 g-1 as well as the maximum appar-ent quantum efficiency (AQE) of 35.5％ in lactic acid aqueous solution, which is 62 times higher than that of pristine CdS (213 μmol g-1 h-1). Theenergy conversion efficiency is ca. 13.05％. As a photosensitizer and an electron reservoir, GQDs can not only extend the light response of CdS to the visible-light region (400-800 nm), but also promotes the separation of photoinduced electron-hole pairs. Meanwhile, PtSAs, with unique electronic and geometric features, can provide more efficient proton reduction sites. This finding provides an effective strategy to remarkably improve photocatalytic H2 production performance.
文献关键词：
中图分类号：
作者姓名：
Yi Yang;Jinsong Wu;Bei Cheng;Liuyang Zhang;Ahmed Abdullah Al-Ghamdi;Swelm Wageh;Youji Li
作者机构：
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Nanostructure Research Centre(NRC),Wuhan University of Technology,Wuhan 430070,China;Laboratory of Solar Fuel,Faculty of Materials Science and Chemistry,China University of Geosciences,Wuhan 430074,China;Department of Physics,Faculty of Science,King Abdulaziz University,Jeddah 21589,Saudi Arabia;College of Chemistry and Chemical Engineering,Jishou University,Jishou,Hunan 416000,China
文献出处：
引用格式：
[1]Yi Yang;Jinsong Wu;Bei Cheng;Liuyang Zhang;Ahmed Abdullah Al-Ghamdi;Swelm Wageh;Youji Li-.Enhanced Photocatalytic H2-production Activity of CdS Nanoflower using Single Atom Pt and Graphene Quantum Dot as Dual Cocata-lysts)[J].结构化学,2022(06):6-14,中插1-中插9
A类：
Nanoflower,Cocata,PtSAs,Theenergy
B类：
Enhanced,Photocatalytic,H2,production,Activity,CdS,using,Single,Atom,Graphene,Quantum,Dot,as,Dual,have,activity,due,their,unique,quantum,size,effects,optimal,utilization,Herein,visible,light,responsive,photocatalysts,were,designed,by,coupling,gra,dots,GQDs,platinum,single,atoms,successively,loaded,ultrathin,nanosheets,through,freeze,drying,situ,photocatalytic,reduction,synergistic,be,tween,results,superior,hy,drogen,well,maximum,appar,efficiency,AQE,lactic,acid,aqueous,solution,which,times,higher,than,that,pristine,conversion,photosensitizer,reservoir,can,not,only,extend,response,region,but,also,promotes,separation,photoinduced,hole,pairs,Meanwhile,electronic,geometric,features,more,efficient,proton,sites,This,finding,provides,effective,strategy,remarkably,improve,performance
AB值：
0.588191
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