A novel 2D graphene oxide modified α-AgVO_(3) nanorods: Design, fabrication, and enhanced visible-light photocatalytic performance

查看全文 作　　者：Jian [1]WU;Liangyu [2]LI;Xing-ao [1]LI;Xin [2]MIN;Yan [1]XING

机构地区：[1]New Energy Technology Engineering Lab of Jiangsu Province,School of Science,Nanjing University of Posts&Telecommunications(NUPT),Nanjing 210023,China;[2]Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes,National Laboratory of Mineral Materials,School of Materials Science and Technology,China University of Geosciences(Beijing),Beijing 100083,China

出　　处：《Journal of Advanced Ceramics》索引2022年第11卷第2期,共13页

基　　金：This work was financially supported by the National Natural Science Foundation of China(No.52102068);the Key Laboratory Foundation of the Science and Technology on Advanced Functional Composite Laboratory(No.6142906200509);the Natural Science Foundation of Jiangsu Province(No.20KJB430017);NUPTSF(No.NY219162);the Postgraduate Research&Practice Innovation Program of Jiangsu Province(No.KYCX20_0789). 摘　　要：Silver vanadates are promising visible-light-responded photocatalysts with suitable bandgap for solar absorption.However,the easy recombination of photogenerated carriers limits their performance.To overcome this obstacle,a novel 2D graphene oxide(GO)modifiedα-AgVO_(3) nanorods(GO/α-AgVO_(3) )photocatalyst was designed herein to improve the separation of photocarriers.The GO/α-AgVO_(3) was fabricated through a facile in-situ coprecipitation method at room temperature.It was found that the as-prepared 0.5 wt%GO/α-AgVO_(3) exhibited the most excellent performance for rhodamine B(RhB)decomposition,with an apparent reaction rate constant 18 times higher than that of pureα-AgVO_(3) under visible-light irradiation.In light of the first-principles calculations and the hetero junction analysis,the mechanism underpinned the enhanced photocatalytic performance was proposed.The enhanced photocatalytic performance was ascribed to the appropriate bandgap ofα-AgVO_(3) nanorods for visible-light response and efficient separation of photocarriers through GO nanosheets.This work demonstrates the feasibility of overcoming the easy recombination of photogenerated carriers and provides a valuable GO/α-AgVO_(3) photocatalyst for pollutant degradation. 关键词：α-AgVO_(3) graphene oxide modifiedα-AgVO_(3)nanorods(GO/α-AgVO_(3)) photocatalysis graphene oxide(GO)nanosheets in-situ coprecipitation processing

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A novel 2D graphene oxide modified α-AgVO_(3) nanorods: Design, fabrication, and enhanced visible-light photocatalytic performance

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