• 文献标题:   Efficient removal of methyl blue from aqueous solution by using poly(4-vinylpyridine)-graphene oxide-Fe3O4 magnetic nanocomposites
  • 文献类型:   Article
  • 作  者:   LI YS, LU HJ, WANG YT, ZHAO Y, LI XL
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF MATERIALS SCIENCE
  • ISSN:   0022-2461 EI 1573-4803
  • 通讯作者地址:   Lanzhou Univ
  • 被引频次:   4
  • DOI:   10.1007/s10853-019-03441-8
  • 出版年:   2019

▎ 摘  要

The poly(4-vinylpyridine)-graphene oxide-Fe3O4 magnetic nanohybrid (GO-Fe3O4@P4VP) was prepared and used as a novel nanoadsorbent to efficiently remove methyl blue (MB) from aqueous solution. The GO-Fe3O4@P4VP was characterized with scanning electron microscopy, transmission electron microscopy, elemental analysis, BET surface area, X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and vibrating sample magnetometer. The GO-Fe3O4@P4VP had high surface area, porous structure and magnetic properties. Adsorption performances of GO-Fe3O4@P4VP for MB were investigated at different pH, initial concentrations of MB, ionic strength, adsorbent dosage, contact time and the temperature. Adsorption equilibrium and kinetic process of MB on GO-Fe3O4@P4VP were well described by the Freundlich isotherm model and the pseudo-second-order kinetic model, respectively. Additionally, the characteristics of high adsorption capacity, rapid adsorption rate, good reusability and magnetic separation would make GO-Fe3O4@P4VP become a perfect candidate to remove MB in aqueous solution.