WEI Qing-feng, SHI Yan-ming, LI Tong-tong, WANG Yan-hui, WEI Chun-chun, TUO Xian-guo. Adsorption of U(Ⅵ) From Aqueous Solution by Hydrogen Peroxide Activated Montmorillonite[J]. Journal of Nuclear and Radiochemistry, 2019, 41(6): 578-584. DOI: 10.7538/hhx.2019.YX.2019008
    Citation: WEI Qing-feng, SHI Yan-ming, LI Tong-tong, WANG Yan-hui, WEI Chun-chun, TUO Xian-guo. Adsorption of U(Ⅵ) From Aqueous Solution by Hydrogen Peroxide Activated Montmorillonite[J]. Journal of Nuclear and Radiochemistry, 2019, 41(6): 578-584. DOI: 10.7538/hhx.2019.YX.2019008

    Adsorption of U(Ⅵ) From Aqueous Solution by Hydrogen Peroxide Activated Montmorillonite

    • Active montmorillonite adsorption material(AX-MMT) was obtained by activating montmorillonite with hydrogen peroxide. The activated samples were characterized by X-ray diffraction(XRD), Fourier transform infrared spectroscopy(FTIR), transmission electron microscopy(TEM), scanning electron microscopy(SEM), specific surface analysis(BET) and surface Zeta potential analysis. The effects of concentration of hydrogen peroxide, pH value, contact time and coexisting anions and cations on U(Ⅵ) adsorption on AX-MMT were investigated by static batch experiment. Under the optimum conditions(concentration of hydrogen peroxide, pH value and contact time are 10%, 6 and 24 h, respectively), the adsorption percentage of U(Ⅵ) on montmorillonite increases by 8.5 times, which accords with the quasi-second-order adsorption kinetics model. Under the interference of both anions and cations, H2O2 activated montmorillonite can also exhibit good adsorption properties for U(Ⅵ).
    • loading

    Catalog

      Turn off MathJax
      Article Contents

      /

      DownLoad:  Full-Size Img  PowerPoint
      Return
      Return