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NIU Ting-ting, WANG Jian-jun, WU Wang-suo, ZHANG Lan. Preparation of Functionalized Fe3O4 Magnetic Particles and Evaluation of Its Potency in Separating Strontium(Ⅱ)[J]. Journal of Nuclear and Radiochemistry, 2012, 34(3): 166-173.
Citation: NIU Ting-ting, WANG Jian-jun, WU Wang-suo, ZHANG Lan. Preparation of Functionalized Fe3O4 Magnetic Particles and Evaluation of Its Potency in Separating Strontium(Ⅱ)[J]. Journal of Nuclear and Radiochemistry, 2012, 34(3): 166-173.
shu

Preparation of Functionalized Fe3O4 Magnetic Particles and Evaluation of Its Potency in Separating Strontium(Ⅱ)

  • 1.

    Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

  • 2.

    Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

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  • Received Date: December 31, 1899
  • Revised Date: December 31, 1899
    Graphical Abstract
    • Abstract
  • Amino-modified silicacoated ferromagnetic particles coated with benzo-18-crown-6 by condensation reaction have been evaluated for the application in the separation of strontium from aqueous solution. Its structure was analyzed by FTIR, TEM, XRD and VSM. The effect of contact time, temperature and Sr2+ mass concentration on the uptake of Sr2+ was systematically studied. The result indicates that the equilibrium can be reached within 60 min. The Kd value increases with the elevated temperature and decreased concentration of Sr2+. The adsorption agrees well with Freundlich adsorption equation and the pseudo-second rate equation. The desorption studies demonstrate the possibility of particles recycling.
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    • References (26)
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