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Synthesis of Cu-TiO2/CuS p-n heterojunction via in situ sulfidation for highly efficient photocatalytic NO removal
文献摘要：
Cu doped TiO2/CuS(Cu-TiO2/CuS)p-n heterojunction was synthesized via in situ sulfidation method for efficient photocatalytic removal of NO at ppb-level.The results show that optimized Cu-TiO2/CuS heterojunction possessed a maximum efficiency of 85％for the removal of NO under visible light irradiation,which was approximately 8.5,4.3 and 1.2 times that of CuS,TiO2 and Cu-TiO2,respectively.The improved photocatalytic performance is attributed to the enhancement of visible light absorption and charge carrier separation induced by the construction of p-n heterojunction.Meanwhile,the p-n heterojunction charge transfer mechanism of Cu-TiO2/CuS was verified by systematic investigations.The appropriate band structures of the two components and the internal electric field formed at the interface of the heterojunction were two factors for this charge transfer mechanism.Furthermore,the role of active species in NO removal was explored,and the corresponding mechanism for NO removal of the heterojunction was proposed.This work provides a promising approach for the synthesis of heterojunction photocatalysts and facilitates the application of photocatalysts in sustainable and efficient pollutant removal.
文献关键词：
中图分类号：
[1] 医药、卫生（R） / 药学（R9） / 药理学（R96） / 实验药理学（R965）
[2] 医药、卫生（R） / 基础医学（R3） / 病理学（R36） / 病理过程（R364）
[3] 医药、卫生（R） / 神经病学与精神病学（R74） / 神经病学（R741）
作者姓名：
Faguo Wang;Shuo Yang;Sumei Han;Peng Sun;Wenxiu Liu;Qipeng Lu;Wenbin Cao
作者机构：
School of Materials Science and Engineering,University of Science and Technology Beijing Beijing 100083,China;Institute of Urban Safety and Environmental Science,Beijing Academic of Science and Technology,Beijing 100054,China
文献出处：
自然科学进展·国际材料（英文）
引用格式：
[1]Faguo Wang;Shuo Yang;Sumei Han;Peng Sun;Wenxiu Liu;Qipeng Lu;Wenbin Cao-.Synthesis of Cu-TiO2/CuS p-n heterojunction via in situ sulfidation for highly efficient photocatalytic NO removal)[J].自然科学进展·国际材料（英文）,2022(05):561-569
A类：
B类：
Synthesis,TiO2,CuS,heterojunction,via,situ,sulfidation,highly,efficient,photocatalytic,removal,doped,was,synthesized,method,ppb,level,results,show,that,optimized,possessed,maximum,efficiency,under,visible,light,irradiation,which,approximately,times,respectively,improved,performance,attributed,enhancement,absorption,charge,carrier,separation,induced,by,construction,Meanwhile,transfer,mechanism,verified,systematic,investigations,appropriate,band,structures,two,components,internal,electric,field,formed,interface,were,factors,this,Furthermore,role,active,species,explored,corresponding,proposed,This,work,provides,promising,approach,synthesis,photocatalysts,facilitates,application,sustainable,pollutant
AB值：
0.499465
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