典型文献
Enhanced photocatalytic degradation and H2 evolution performance of N-CDs/S-C3N4 S-scheme heterojunction constructed by π-π conjugate self-assembly
文献摘要：
Constructing heterojunction between two semiconductors with matched energy band structure is an ef-fective modification method to obtain excellent photocatalysts.The experimental scheme adopts a simple solvent method to self-assemble nitrogen doped carbon dots(N-CDs)on the surface of sulfur doped car-bon nitride(S-C3N4)semiconductor through π-π conjugate interaction.Based on this,a novel 0D/2D S-scheme heterojunction N-CDs/S-C3N4 hybrid was successfully prepared.The degradation kinetic constants of N-CDs/S-C3N4 for rhodamine B(RhB)and p-nitrophenol(PNP)reached 0.23522 and 0.01342 min-1,re-spectively,which were 2.72 and 2.65 times that of S-C3N4.The highest photocatalytic hydrogen evolution rate was observed under the simulated sunlight irradiation,which was 2.30 times that of S-C3N4.The improvement of photocatalytic performance was mainly based on the formation of the S-scheme hetero-junction between S-C3N4 and N-CDs.The effects of internal electric field,π-π conjugate interaction and band bending promoted the photogenerated h+and e-with low redox ability to recombine and retained the beneficial h+and e-with strong redox ability,which contributed to the production of more active species of h+and·02-,therefore the photocatalytic degradation and hydrogen evolution performance were significantly enhanced.
文献关键词：
中图分类号：
作者姓名：
Xibao Li;Qiuning Luo;Lu Han;Fang Deng;Ya Yang;Fan Dong
作者机构：
School of Materials Science and Engineering,Nanchang Hangkong University,Nanchang 330063.China;Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle,Nanchang Hangkong University,Nanchang 330063,China;School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,China;CAS Center for Excellence in Nanoscience,Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Beijing 101400,China;Institute of Fundamental and Frontier Sciences.University of Electronic Science and Technology of China.Chengdu 611731.China
文献出处：
引用格式：
[1]Xibao Li;Qiuning Luo;Lu Han;Fang Deng;Ya Yang;Fan Dong-.Enhanced photocatalytic degradation and H2 evolution performance of N-CDs/S-C3N4 S-scheme heterojunction constructed by π-π conjugate self-assembly)[J].材料科学技术（英文版）,2022(19):222-232
A类：
B类：
Enhanced,photocatalytic,degradation,H2,evolution,performance,CDs,C3N4,scheme,heterojunction,constructed,by,conjugate,self,assembly,Constructing,between,two,semiconductors,matched,energy,band,structure,fective,modification,method,obtain,excellent,photocatalysts,experimental,adopts,simple,solvent,assemble,nitrogen,doped,carbon,dots,surface,sulfur,nitride,through,interaction,Based,this,novel,0D,2D,hybrid,was,successfully,prepared,kinetic,constants,rhodamine,RhB,nitrophenol,PNP,reached,spectively,which,were,times,that,highest,hydrogen,observed,under,simulated,sunlight,irradiation,improvement,mainly,formation,effects,internal,electric,field,bending,promoted,photogenerated,h+and,low,redox,ability,recombine,retained,beneficial,strong,contributed,production,more,active,species,therefore,significantly,enhanced
AB值：
0.56455
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