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.
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
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