典型文献
In-situ anion exchange based Bi2S3/OV-Bi2MoO6 heterostructure for efficient ammonia production:A synchronized approach to strengthen NRR and OER reactions
文献摘要：
Photocatalytic ammonia generation via nitrogen reduction reaction(NRR)is a green and prospective ni-trogen fixation technique.However,NRR is often hampered by the high N2 adsorption/activation ener-gies and is accompanied by a slow kinetics oxygen evolution reaction(OER).Herein,a robust Bi2S3/OV-Bi2MoO6 S-scheme heterojunction is constructed using a simple in-situ anion exchange process,which enables oxygen vacancy(OVs)abundant Bi2MoO6 microspheres with surface deposited Bi2S3.The as-fabricated Bi2S3/OV-Bi2MoO6 functioned as an effective photocatalyst to convert N2-to-NH3 under mild conditions.The photocatalytic NH3/NH4+production rate reached 126 μmol gcat-1 under visible light for 2.5 h with 2％of Bi2S3/OV-Bi2MoO6 photocatalyst,which was 8-fold higher than pristine Bi2MoO6.Fur-thermore,the as-fabricated Bi2S3/Bi2MoO6 heterojunction exhibited good selectivity,high stability and reproducibility.The excellent photocatalytic NRR performance was ascribed to the Bi2S3/Bi2MoO6 hetero-junction formed subsequent to the strong interaction between Bi2S3 and Bi2MoO6.The OVs facilitated the chemical adsorption process allowing activation of N2 molecule on the Bi2S3/Bi2MoO6.Simultane-ously,the S-scheme heterojunction prolonged the lifetime of photogenerated carriers,accelerated the electrons/holes spatial separation and accumulation on the Bi2S3(reduction)and Bi2MoO6 side(oxida-tion),respectively,thus strengthening both OER and NRR half-reactions.This simple in-situ anion ex-change method offers a novel technique for strengthening OER and NRR half-reactions in Bi-based pho-tocatalysts for effective photocatalytic ammonia generation.
文献关键词：
中图分类号：
作者姓名：
Yuanyuan Zhang;Li Guo;Yingxian Wang;Tianyu Wang;Taoxia Ma;Zhuangzhuang Zhang;Danjun Wang;Bin Xu;Feng Fu
作者机构：
Shaanxi Key Laboratory of Chemical Reaction Engineering,College of Chemistry&Chemical Engineering,Yan'an University,Yan'an 716000,China;Key Laboratory of Synthetic and Natural Functional Molecule Chemistry,College of Chemistry&Materials Science,Northwest University,Xi'an 710127,China;State Key Laboratory of Organic-Inorganic Composites,Beijing Key Laboratory of Electrochemical Process and Technology for Materials,Beijing University of Chemical Technology,Beijing 100029,China
文献出处：
引用格式：
[1]Yuanyuan Zhang;Li Guo;Yingxian Wang;Tianyu Wang;Taoxia Ma;Zhuangzhuang Zhang;Danjun Wang;Bin Xu;Feng Fu-.In-situ anion exchange based Bi2S3/OV-Bi2MoO6 heterostructure for efficient ammonia production:A synchronized approach to strengthen NRR and OER reactions)[J].材料科学技术（英文版）,2022(15):152-160
A类：
NH4+production,Simultane,tocatalysts
B类：
In,situ,anion,exchange,Bi2S3,Bi2MoO6,heterostructure,efficient,ammonia,synchronized,approach,NRR,OER,reactions,Photocatalytic,generation,via,nitrogen,reduction,green,prospective,fixation,technique,However,often,hampered,by,N2,adsorption,activation,gies,accompanied,slow,kinetics,oxygen,evolution,Herein,robust,scheme,heterojunction,constructed,using,simple,process,which,enables,vacancy,OVs,abundant,microspheres,surface,deposited,fabricated,functioned,effective,photocatalyst,convert,NH3,under,mild,conditions,photocatalytic,reached,gcat,visible,light,was,fold,higher,than,pristine,Fur,thermore,exhibited,good,selectivity,stability,reproducibility,excellent,performance,ascribed,formed,subsequent,strong,interaction,between,facilitated,chemical,allowing,molecule,ously,prolonged,lifetime,photogenerated,carriers,accelerated,electrons,holes,spatial,separation,accumulation,side,oxida,respectively,thus,strengthening,both,half,This,method,offers,novel
AB值：
0.475671
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