典型文献
S-scheme ZnO/WO3 heterojunction photocatalyst for efficient H2O2 production
文献摘要:
Designing highly efficient photocatalyst for hydrogen peroxide(H2O2)production is an ideal strategy to avoid the shortcomings of traditional H2O2 production and to realize the conversion of solar energy to chemical energy.In this work,a step-scheme(S-scheme)heterojunction photocatalyst composed of ZnO and WO3 is carefully prepared by hydrothermal and calcination method for efficient photocatalytic H2O2 production.The ZW30 composite photocatalysts exhibit enhanced activity with the highest H2O2-production rate of 6788 μmol L-1 h-1.The results show that the photocatalytic H2O2 production pro-cess is dominated by a direct two-electron O2 reduction pathway.The enhanced photocatalytic H2O2-production activity is attributed to the formation of interfacial internal electric field(IEF)in the S-scheme heterojunction,which boosts the spatial separation of charge carriers and enables electrons with the strongest reduction power to participate in H2O2 production.This work provides an in-depth insight of the great advantages of S-scheme heterojunction in photocatalytic H2O2 production.
文献关键词:
中图分类号:
作者姓名:
Zicong Jiang;Bei Cheng;Yong Zhang;S.Wageh;Ahmed A.Al-Ghamdi;Jiaguo Yu;Linxi Wang
作者机构:
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,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
文献出处:
引用格式:
[1]Zicong Jiang;Bei Cheng;Yong Zhang;S.Wageh;Ahmed A.Al-Ghamdi;Jiaguo Yu;Linxi Wang-.S-scheme ZnO/WO3 heterojunction photocatalyst for efficient H2O2 production)[J].材料科学技术(英文版),2022(29):193-201
A类:
ZW30
B类:
scheme,ZnO,WO3,heterojunction,efficient,H2O2,production,Designing,highly,hydrogen,peroxide,ideal,strategy,avoid,shortcomings,traditional,realize,conversion,solar,energy,chemical,In,this,work,step,composed,carefully,prepared,by,hydrothermal,calcination,method,photocatalytic,composite,photocatalysts,exhibit,enhanced,activity,highest,results,show,that,cess,dominated,direct,two,reduction,pathway,attributed,formation,interfacial,internal,electric,field,IEF,which,boosts,spatial,separation,charge,carriers,enables,electrons,strongest,power,participate,This,provides,depth,insight,great,advantages
AB值:
0.526488
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