Photocatalytic oxidation of emerging contaminants(ECs)in water has recently gained ex-tensive attentions.In this study,bismuth oxychloride-based plasmon photocatalysts(Bi-Bi3O4Cl)exhibiting high performance were successfully developed by reducing Bi3+on the surface of Bi3O4Cl.Consequently,the photocatalysts were used to remove ECs from water.The effects of developmental process and Bi metal plasmon resonance on the photoelec-tric performances of Bi-Bi3O4Cl were investigated through a series of characterizations.The UV-vis diffuse reflection and photoluminescence spectra revealed that the light absorption range of the photocatalyst gradually increased and the electron recombination rate gradu-ally decreased with the introduction of Bi metals.The optimal removal rates of ciprofloxacin and tetrabromobisphenol A by Bi-Bi3O4Cl were 93.8％and 96.4％;the respective reaction rate constants were 5.48 and 4.93 times higher than that of Bi3O4Cl.The mechanism study indi-cated that main reactants in the photocatalytic system were·O2-radicals and photogener-ated holes,and the existence of oxygen vacancies and Bi metals promoted electron transfer in photocatalyst.In conclusion,this research produces a novel,green,highly efficient,and stable visible light photocatalyst for the removal of ECs from water.

School of Energy&Environmental Engineering,Hebei University of Technology,Xiping road,Beichen district,Tianjin 300130,China;School of Environment&Natural Resources,Renmin University of China,Beijing 100872,China;Shanxi Aerospace Qinghua Equipment Co.,Ltd.,Changzhi 046012,China;School of Construction and Environment Engineering,Shenzhen Polytechnic,Shenzhen 518055,China

[1]Zeqing Long;Hui Song;Guangming Zhang;Jingsi Gao;Jia Zhu-.Fabrication of Bi-Bi3O4Cl plasmon photocatalysts for removal of aqueous emerging contaminants under visible light)[J].环境科学学报（英文版）,2022(08):87-100

Bi3O4Cl,Bi3+on,photogener

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