典型文献
Carbon quantum dots modified TiO2 composites for hydrogen production and selective glucose photoreforming
文献摘要：
Lignocellulosic biomass photoreforming is a promising and alternative strategy for both sustainable H2 production and biomass valorization with infinite solar energy.However,harsh reaction conditions (high alkalinity or toxic organic solvents),with low biomass conversion and selectivity are often reported in literature.In this work,we report glucose photoreforming for coproduction of H2 and arabinose with improved selectivity under neutral condition using carbon quantum dots (CQDs) modified TiO2 compos-ites.We show that the conventional CQDs fabricated by a facile one-step hydrothermal process could be endowed with novel color changing property,due to the particle aggregation under the regulation of inci-dent light.The as-fabricated CQDs/TiO2 composites with certain colored CQDs could greatly improve glu-cose to arabinose conversion selectivity (～75％) together with efficient hydrogen evolution (up to 2.43 mmolh-1g-1) in water.The arabinose is produced via the direct C1-C2 α-scissions mechanism with reac-tive oxygen species of·O2-and ·OH,as evidenced by 13C labeled glucose and the electron spin-resonance(ESR) studies,respectively.This work not only sheds new lights on CQDs assisted photobiorefinery for biomass valorization and H2 coproduction,but also opens the door for rationale design of different col-ored CQDs and their potential applications for solar energy utilization in the noble-metal-free system.
文献关键词：
中图分类号：
作者姓名：
Heng Zhao;Xinti Yu;Chao-Fan Li;Wenbei Yu;Aiguo Wang;Zhi-Yi Hu;Steve Larter;Yu Li;Md Golam Kibria;Jinguang Hu
作者机构：
Department of Chemical and Petroleum Engineering,University of Calgary,2500 University Drive,NW,Calgary,Alberta T2N 1N4,Canada;State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,Hubei,China;Nanostructure Research Centre,Wuhan University of Technology,Wuhan 430070,Hubei,China;Department of Geosciences,University of Calgary,2500 University Drive,NW,Calgary,Alberta T2N 1N4,Canada
文献出处：
引用格式：
[1]Heng Zhao;Xinti Yu;Chao-Fan Li;Wenbei Yu;Aiguo Wang;Zhi-Yi Hu;Steve Larter;Yu Li;Md Golam Kibria;Jinguang Hu-.Carbon quantum dots modified TiO2 composites for hydrogen production and selective glucose photoreforming)[J].能源化学,2022(01):201-208
A类：
photoreforming,Lignocellulosic,coproduction,mmolh,scissions,photobiorefinery
B类：
Carbon,quantum,dots,modified,TiO2,composites,hydrogen,selective,glucose,biomass,promising,alternative,strategy,both,sustainable,H2,valorization,infinite,solar,energy,However,harsh,reaction,conditions,high,alkalinity,toxic,organic,solvents,low,conversion,selectivity,are,often,reported,literature,In,this,work,arabinose,improved,under,neutral,using,carbon,CQDs,We,show,that,conventional,fabricated,by,facile,one,step,hydrothermal,process,could,endowed,novel,changing,property,due,particle,aggregation,regulation,inci,dent,certain,colored,greatly,together,efficient,evolution,up,1g,water,produced,via,direct,C1,C2,mechanism,oxygen,species,evidenced,13C,labeled,electron,spin,resonance,ESR,studies,respectively,This,not,only,sheds,new,lights,assisted,but,also,opens,door,rationale,design,different,their,potential,applications,utilization,noble,metal,free,system
AB值：
0.532915
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