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LBJG-019 Enhanced Photocatalytic Degradation Performance of Organic Contaminants by Heterojunction Photocatalyst BiVO4/TiO2/RGO and its Compatibility on Four Different Tetracycline Antibiotics
writer:Wei Wang;Han Qi,Zhijia Zhu,Shan Zhong;Lishan Zhang;Baojiang Liu*
keywords:photocatalyst,TiO2
source:期刊
specific source:Advanced Powder Technology
Issue time:2019年

Photocatalytic performance of four tetracycline antibiotics using

BiVO4/TiO2/RGO composites was investigated. To make full use of catalysis,

optimum preparation conditions involved RGO content, solution pH and

hydrothermal temperature on the structure forming of BiVO4/TiO2/RGO were

investigated. Subsequently, the obtained visible light-driven photocatalyst was used to

degrade four kinds of tetracycline antibiotics involved tetracycline(TC) 、

chlortetracycline(CTC) 、oxytetracycline (OTC) and doxycycline (DXC) for

wastewater treatment. Results showed that BiVO4/TiO2/RGO photocatalyst exhibited

excellent photocatalytic activity and high compatibility due to the enhanced

separation efficiency of photo-generated carriers with high reduction and oxidation

capability. The degradation process of four kinds of tetracycline antibiotics was traced

and detected through identifying intermediates produced in the reaction system. And a

possible catalytic mechanism for BiVO4/TiO2/RGO photocatalyst was put forward

based on band gap structure of BiVO4 and TiO2.