• 文献标题:   Improved ciprofloxacin removal by a Fe(VI)-Fe3O/graphene system under visible light irradiation
  • 文献类型:   Article
  • 作  者:   FANG SP, ZHOU ZW, XUE JJ, HE GY, CHEN HQ
  • 作者关键词:   ciprofloxacin, ferrate, fe3o4/graphene, visible light irradiation
  • 出版物名称:   WATER SCIENCE TECHNOLOGY
  • ISSN:   0273-1223 EI 1996-9732
  • 通讯作者地址:   Changzhou Univ
  • 被引频次:   1
  • DOI:   10.2166/wst.2018.181
  • 出版年:   2018

▎ 摘  要

In this paper, Fe3O4/graphene (Fe3O4/GE) nanocomposites were prepared by a co-precipitation method and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and UV-vis diffuse reflectance spectra (UV-vis DRS). The composites were used in combination with Fe(VI) to construct a Fe(VI)-Fe3O4/GE system in order to degrade ciprofloxacin (CIP) in simulated water samples. The photocatalytic properties of Fe(VI)-Fe3O4/GE were evaluated under visible light irradiation. The concentration of CIP in solution was detected by high performance liquid chromatography (HPLC). A series of results showed that Fe(VI), as a good electron capture agent, could significantly improve the treatment performance. Major determining factors during CIP degradation were also investigated, in which solution pH of 9, Fe(VI) to Fe3O4/GE dosage ratio of 1:25 and GE content in the Fe3O4/GE nanocomposites of 10 wt% were found to be the best experimental conditions. The results demonstrated that the Fe(VI)-Fe3O4/GE system could offer an alternative process in water treatment in addition to the current Fe(VI)-UV/TiO2 process.