XUE Jing-yi, LYU Hong-bin, ZHENG Wei-fang. Adsorption Behavior of Cs+ on Calix-Bis-Crown Extraction Resin[J]. Journal of Nuclear and Radiochemistry, 2021, 43(4): 323-329. DOI: 10.7538/hhx.2020.YX.2020004
    Citation: XUE Jing-yi, LYU Hong-bin, ZHENG Wei-fang. Adsorption Behavior of Cs+ on Calix-Bis-Crown Extraction Resin[J]. Journal of Nuclear and Radiochemistry, 2021, 43(4): 323-329. DOI: 10.7538/hhx.2020.YX.2020004

    Adsorption Behavior of Cs+ on Calix-Bis-Crown Extraction Resin

    • The extraction resin B4DC6/P120 was synthesized by vacuum perfusion technology. Characterization of B4DC6/P120 were investigated by SEM and FTIR. The effects of contact time, nitric acid concentration, temperature and coexisting ions on the adsorption of Cs+ on B4DC6/P120 were investigated by static adsorption experiments. The breakthrough curve was also studied by dynamic adsorption experiment. The results show that the adsorption equilibrium time of B4DC6/P120 for Cs+ is about 24 h, and the adsorption kinetic conforms to the pseudo first-order kinetic equation. As the acidity increases, the adsorption performance increases first and then decreases. Increasing the temperature is conducive to the adsorption. High adsorption performance and selectivity for Cs+ is observed, and the separation factor of Cs+ towards most cations is more than 10. The results of dynamic removal of Cs+ by B4DC6/P120 show good adsorption performance for Cs+ and the resin can be used to remove Cs+ from radioactive waste liquid.
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