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Adsorption of Eu(III) on iron oxide/multiwalled carbon nanotube magnetic composites

  • Songsheng LuEmail author
  • Lei Chen
  • Yunhui Dong
  • Yixue Chen
Article

Abstract

Iron oxide/multiwalled carbon nanotube magnetic composites (denoted as magnetic composites) were synthesized and characterized in detail. The magnetic composites can be separated from aqueous solution easily by using magnetic separation method. The application of magnetic composites in the removal of Eu(III) from large volumes of aqueous solutions was studied. The results indicated that the sorption of Eu(III) on the magnetic composites was strongly dependent on pH values and weakly dependent on ionic strength. The sorption of Eu(III) on the magnetic composites was mainly dominated by inner-sphere surface complexation. The linear sorption isotherms of Eu(III) suggested that Eu(III) sorption on the magnetic composites was far from saturation. The large sorption capacity and the easy magnetic separation method indicate that the magnetic composites may be a promising suitable material in nuclear waste management in future.

Keywords

Iron oxide/multiwalled carbon nanotube magnetic composites Eu(III) Sorption Nuclear waste management 

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2011

Authors and Affiliations

  • Songsheng Lu
    • 1
    • 2
    Email author
  • Lei Chen
    • 3
  • Yunhui Dong
    • 3
  • Yixue Chen
    • 1
  1. 1.School of Nuclear Science and EngineeringNorth China Electric Power UniversityBeijingPeople’s Republic of China
  2. 2.New Star Institute of Applied TechnologyHefeiPeople’s Republic of China
  3. 3.School of Chemical EngineeringShandong University of TechnologyZiboPeople’s Republic of China

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