Assisting Bi_(2)MoO_(6) microspheres with phenolic resin-based ACSs as attractive tailor-made supporter for highly-efficient photocatalytic CO_(2) reduction  

作　　者：Xiaochao Zhang Guangmin Ren Changming Zhang Jinbo Xue Qiang Zhao Rui Li Yunfang Wang Caimei Fan 

机构地区：[1]College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan,030024,China [2]College of Mining Engineering,Taiyuan University of Technology,Taiyuan,030024,China [3]Key Laboratory of Interface Science and Engineering in Advanced Materials(Taiyuan University of Technology),Ministry of Education,Taiyuan,030024,China [4]College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan,030024,China

出　　处：《Green Energy & Environment》2021年第5期693-702,共10页绿色能源与环境（英文版）

基　　金：The authors are thankful to the National Natural Science Foundation of China(No.21978196,21676178,21706179);Shanxi Province Science Foundation for Youths(201801D211008).

摘　　要：It is rather essential to design glorious system with high CO_(2) adsorption capacity and electron migration efficiency for improving selective and effective CO_(2) reduction into solar fuels.Here,as-synthesized phenolic resin spheres via suspension polymerization were carbonized and activated by water vapor to obtain activated carbon spheres(ACSs).Subsequently,Bi_(2)MoO_(6)/ACSs were prepared via hydrothermal-impregnated method.The systematical characterizations of samples,including XRD,XPS,SEM,EDX,DRS,BET,PL,CO_(2) adsorption isotherm,EIS and transient photocurrent,were analyzed.The results clearly demonstrated that Bi_(2)MoO_(6) with suitable oxidation reduction potentials and bandgap and ACSs with admirable CO_(2) adsorption and electrical conductivity not only enhanced separation efficiency of photoindued electron-hole pair,but also displayed as 1.8 times CO_(2) reduction activity to CO as single Bi_(2)MoO_(6) sample under Xe-lamp irradiation.Finally,a concerned photocatalytic CO_(2) reduction mechanism was proposed and investigated.Our findings should provide innovative guidance for designing a series of photocatalytic CO_(2) reduction materials with highly efficient and selective ability.

关 键 词：CO_(2)reduction Bi_(2)MoO_(6)microspheres Activated carbon spheres Photocatalysis Adsorption capacity 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] X701[环境科学与工程—环境工程]