| 摘 要： | A novel GO modified g-C_3N_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_3N_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-C_3 N_(4/)GO/BiOBr hybrid displays a superior photocatalytic ability to g-C_3N_4 and BiOBr in photodegrading tetracycline(TC),whose removal efficiency could reach 96% within 2 h.Besides,g-C_3N_4/GO/BiOBr composite can reduce Cr(Ⅵ),and simultaneously treat TC and Cr(Ⅵ) combination contaminant under the visible light The g-C_3N_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_3N_4/GO/BiOBr is put forward.This study offers a te rnary hybrid photocatalyst with eco-friendliness and hopeful application in water pollution.
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