典型文献
Construction of oxygen vacancy on Bi12O17C12 nanosheets by heat-treatment in H2O vapor for photocatalytic NO oxidation
文献摘要：
Oxygen-vacancies(OVs)play significant roles in semiconductor-based photocatalysis,such as elevating light absorption property,photogenerated carries separation efficiency,molecular activation,and pho-tocatalytic activity.However,heat-treatment of semiconductors in dangerous H2 atmosphere is usually indispensable for OVs formation.In this work,C-doped Bi12O17C12 nanosheets were facially heat-treated in H2O vapor(～2.3 vol％)mixed with Ar at 300℃to in-situ introduce OVs by the proposed reactions of C(s)+H2O(g)→ CO(g)+H2(g)and H2(g)+OLattice → H2O(g)+OV.The formation of OVs,which was confirmed by electron paramagnetic resonance(EPR),can narrow the band gap,and enhance the photogenerated e-/h+separation efficiency on Bi12O17C12·Moreover,OVs-rich Bi12O17C12 nanosheets can facilitate molecular O2 activation and produce more reactive oxygen species(ROS),especially 1O2,which greatly improve the NO to NO3-conversion efficiency with NO removal rate of～63％and NO3-produc-tion selectivity of～92.6％.The present work will bring new insights into the construction and roles of OVs in semiconductor-based photocatalysis.
文献关键词：
中图分类号：
作者姓名：
Yi Yang;Yi Zeng;Tongxin Jin;Xiaohu Zhang;Huailong Teng;Shengyao Wang;Hao Chen
作者机构：
College of Science,Hubei Hongshan Laboratory,Huazhong Agricultural University,Wuhan 430070,China
文献出处：
引用格式：
[1]Yi Yang;Yi Zeng;Tongxin Jin;Xiaohu Zhang;Huailong Teng;Shengyao Wang;Hao Chen-.Construction of oxygen vacancy on Bi12O17C12 nanosheets by heat-treatment in H2O vapor for photocatalytic NO oxidation)[J].材料科学技术（英文版）,2022(28):234-242
A类：
Bi12O17C12,facially,+OLattice,+OV,h+separation
B类：
Construction,oxygen,vacancy,nanosheets,by,heat,treatment,vapor,photocatalytic,oxidation,Oxygen,vacancies,OVs,play,significant,roles,photocatalysis,such,elevating,light,absorption,property,photogenerated,carries,efficiency,molecular,activation,activity,However,semiconductors,dangerous,atmosphere,usually,indispensable,formation,In,this,work,doped,were,treated,vol,mixed,Ar,situ,introduce,proposed,reactions,+H2O,which,was,confirmed,electron,paramagnetic,resonance,EPR,narrow,band,gap,enhance,Moreover,rich,facilitate,produce,more,reactive,species,ROS,especially,1O2,greatly,improve,NO3,conversion,removal,selectivity,present,will,bring,new,insights,into,construction
AB值：
0.50482
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