Facile synthesis of GO as middle carrier modified flower-like BiOBr and C_(3)N_(4) nanosheets for simultaneous treatment of chromium(Ⅵ)and tetracycline  

作　　者：Liushan Jiang Yu Xie Fan He Yun Ling Jinsheng Zhao Hao Ye Shiqian Li Yang Hou 

机构地区：[1]College of Environment and Chemical Engineering,Nanchang Hangkong University,Nanchang 330063,China [2]Key Laboratory of Biomass Chemical Engineering of Ministry of Education,College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310027 China [3]College of Chemistry and Chemical Engineering,Liaocheng University,Liaocheng 252059,China [4]Ningbo Research Institute,Zhejiang University,Ningbo 315100,China

出　　处：《Chinese Chemical Letters》2021年第7期2187-2191,共5页中国化学快报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.21667019,22066017,and 22002057);the Key Project of Natural Science Foundation of Jiangxi Province(No.20171ACB20016);the Jiangxi Province Major Academic and Technical Leaders Cultivating Object Program(No.20172BCB22014);the Science and Technology Department of Jiangxi Province(Nos.20181BCB18003 and 20181ACG70025);the Key Laboratory of Photochemical Conversion and Optoelectronic Materials,TIPC,CSA(No.PCOM201906);the Key Project of Science and Technology Research of the Jiangxi Provincial Department of Education(Nos.DA201602063 and GJJ191044);the Aviation Science Foundation of China(No.2017ZF56020);Fujian Key Laboratory of Measurement and Control System for of Shore Environment(No.S1-KF1703);the Doctor’s Start-up Fund of Nanchang Hangkong University(No.EA201902286);the National Natural Science Foundation of China(Nos.51702284,21878270 and 21922811);Zhejiang Provincial Natural Science Foundation of China(No.LR19B060002);the Fundamental Research Funds for the Central Universities;the Startup Foundation for Hundred-Talent Program of Zhejiang University;。

摘　　要：A novel GO modified g-C_(3)N_(4) nanosheets/flower-like BiOBr hybrid photocatalyst is fabricated by a facile method.The characterization results reveal that wrinkled GO is deposited between g-C_(3)N_(4) nanosheets and flower-like BiOBr forming a Z-scheme heterojunction.As a mediator,plicate GO plays a positive role in prompting photogene rated electrons transfe rring through its sizeable 2 D/2 D contact surface area.The g-C3 N4/GO/BiOBr hybrid displays a superior photocatalytic ability to g-C_(3)N_(4) and BiOBr in photodegrading tetracycline(TC),whose removal efficiency could reach 96%within 2 h.Besides,g-C_(3)N_(4)/GO/BiOBr composite can reduce Cr(Ⅵ),and simultaneously treat TC and Cr(Ⅵ)combination contaminant under the visible light The g-C_(3)N_(4)/GO/BiOBr ternary composite also exhibits satisfactory stability and reusability after four cycling experiments.Further,a feasible mechanism related to the photocatalytic process of gC_(3)N_(4)/GO/BiOBr is put forward.This study offers a te rnary hybrid photocatalyst with eco-friendliness and hopeful application in water pollution.

关 键 词：Z-scheme g-C_(3)N_(4)/GO/BiOBr Ternary heterojunction Photocatalysis Tetracycline degradation Cr(Ⅵ)reduction 

分 类 号：X703[环境科学与工程—环境工程] O643.36[理学—物理化学]