• 文献标题:   Zn-doped Bi2MoO6 supported on reduced graphene oxide with increased surface active sites for degradation of ciprofloxacin
  • 文献类型:   Article
  • 作  者:   WANG Q, CHEN ZJ, SHI M, ZHAO YT, YE JR, HE GY, MENG Q, CHEN HQ
  • 作者关键词:   bi2moo6, photocatalysi, ciprofloxacin, zn doping, graphene, antibiotic
  • 出版物名称:   ENVIRONMENTAL SCIENCE POLLUTION RESEARCH
  • ISSN:   0944-1344 EI 1614-7499
  • 通讯作者地址:  
  • 被引频次:   1
  • DOI:   10.1007/s11356-021-17186-y EA NOV 2021
  • 出版年:   2022

▎ 摘  要

The reduced graphene oxide supported Zn-doped Bi2MoO6 nanocomposites (ZnxBi2-xMoO6/RGO) are synthesized by an easy one-step solvothermal method for the rapid degradation of ciprofloxacin (CIP). Characterization analyses show that Bi2MoO6 nanosheets are uniformly supported on RGO, for which the agglomeration of Bi2MoO6 is effectively inhibited, leading to more exposure of surface active sites. The degradation rate of Zn0.1Bi1.9MoO6/RGO(5) on CIP reached 90% after 120 min of visible light irradiation, which was 10.4 times the rate of unsupported Bi2MoO6. Zn doping and RGO loading synergistically reduce the recombination rate of photogenerated electron-hole pairs and result in the enhanced photocatalytic performance. Compared with previously reported catalysts, Zn0.1Bi1.9MoO6/RGO(5) can get higher degradation efficiency with shorter time and less dosage. In addition, after five cycles, the degradation efficiency is maintained at about 85%, showing perfect cycling stability of Zn0.1Bi1.9MoO6/RGO(5). Photocatalytic mechanism suggests that the photogenerated center dot O-2(-) and h(+) are main species for degrading CIP based on ZnxBi2-xMoO6/RGO complex.