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Journal of colloid and interface science v.512, 2018년, pp.555 - 566   SCI SCIE
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Visible-light-driven Ag/AgBr/ZnFe2O4 composites with excellent photocatalytic activity for E. coli disinfection and organic pollutant degradation

Xu, Yuanguo    (School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China   ); Liu, Qingqing    (School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China   ); Liu, Chenchen    (School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China   ); Zhai, Yunpeng    (School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China   ); Xie, Meng    (School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China   ); Huang, Liying    (School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China   ); Xu, Hui    (School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China   ); Li, Huaming    (School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China   ); Jing, Junjie    (School of Chemistry and Chemical Engineering, Ins  );
  • 초록  

    Abstract Visible-light-driven (VLD) Ag/AgBr/ZnFe 2 O 4 composites with different weight ratios of ZnFe 2 O 4 were synthesized via a facile hydrothermal method. The ZnFe 2 O 4 was evenly dispersed on the surface of Ag/AgBr particles with the diameter about 20 nm. The obtained Ag/AgBr/ZnFe 2 O 4 composites exhibited the high bacterial disinfection efficiency and inactivated bacteria after 120 min visible illumination, which was better than those of with pure ZnFe 2 O 4 and Ag/AgBr. Due to the introduction of ZnFe 2 O 4 , the Ag/AgBr/ZnFe 2 O 4 inactivated bacterial cells through the generation of H 2 O 2 , which generated from the electron reduction on the conduction band of ZnFe 2 O 4 in the system. The photocatalytic experiments indicated that as-prepared samples showed the good photocatalytic performance toward degradation of methyl orange (MO) dye. In a word, the Ag/AgBr/ZnFe 2 O 4 composites, as the antibacterial photocatalyst, is a promising candidate material in wastewater decontamination. Graphical abstract Visible-light-driven (VLD) Ag/AgBr/ZnFe 2 O 4 composites with different weight ratios of ZnFe 2 O 4 , prepared via facile one-step hydrothermal method. The obtained photocatalysts exhibited excellent photocatalytic disinfection of E. coli for the first time. The pollutant degradation under visible light irradiation was also investigated. [DISPLAY OMISSION]


  • 주제어

    Photocatalytic .   Ag/AgBr .   ZnFe2O4 .   Antibacterial .   Escherichia coli.  

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