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Preparation and application of magnetic graphene oxide composite for the highly efficient immobilization of U(VI) from aqueous solutions
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  • 作者:Donglin Zhao ; Lili Chen ; Mei Sun ; Feifei Li
  • 关键词:Graphene oxide ; U(VI) ; Magnetite ; Immobilization
  • 刊名:Journal of Radioanalytical and Nuclear Chemistry
  • 出版年:2015
  • 出版时间:October 2015
  • 年:2015
  • 卷:306
  • 期:1
  • 页码:221-229
  • 全文大小:1,061 KB
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  • 作者单位:Donglin Zhao (1)
    Lili Chen (1)
    Mei Sun (1)
    Feifei Li (1)

    1. Key Laboratory of Functional Molecule Design and Interface Process, Anhui Jianzhu University, Hefei, 230601, People鈥檚 Republic of China
  • 刊物类别:Chemistry and Materials Science
  • 刊物主题:Chemistry
    Nuclear Chemistry
    Physical Chemistry
    Nuclear Physics, Heavy Ions and Hadrons
    Diagnostic Radiology
    Inorganic Chemistry
  • 出版者:Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
  • ISSN:1588-2780
文摘
In this present study, a graphene-based magnetic composite (Fe3O4/GO) was prepared and characterized by SEM, TEM, XRD and FTIR. The immobilization of U(VI) onto Fe3O4/GO by a adsorption process was using a batch technique. The pseudo-second-order kinetic and Langmuir isotherm model could best describe the adsorption kinetics and isotherms. The thermodynamic parameters calculated from the temperature dependent adsorption isotherms revealed that the adsorption of U(VI) on Fe3O4/GO was spontaneous and endothermic in nature. The as-prepared Fe3O4/GO composite may be utilized as an efficient, magnetically separable adsorbent for the removal of U(VI) and related radionuclides from aqueous solutions in nuclear waste management. Keywords Graphene oxide U(VI) Magnetite Immobilization

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