• Journal of Radiation Research and Radiation Processing
  • Vol. 42, Issue 2, 020202 (2024)
Wanning REN1, Xinxin FENG2、3, Hongwei HAN4, Jiangtao HU2、*, and Guozhong WU1、2、**
Author Affiliations
  • 1ShanghaiTech University, Shanghai 200031, China
  • 2Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China
  • 4Shanghai University, Shanghai 200444, China
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    DOI: 10.11889/j.1000-3436.2023-0061 Cite this Article
    Wanning REN, Xinxin FENG, Hongwei HAN, Jiangtao HU, Guozhong WU. Preparation of amidoxime-based adsorption materials with a multi-amino synergistic effect and their uranium adsorption performance[J]. Journal of Radiation Research and Radiation Processing, 2024, 42(2): 020202 Copy Citation Text show less
    Synthesis route of P-TETA-AO, P-TEPA-AO, and P-PEHA-AO
    Fig. 1. Synthesis route of P-TETA-AO, P-TEPA-AO, and P-PEHA-AO
    Synthesis reaction formula of P-TETA, P-TEPA, and P-PEHA
    Fig. 2. Synthesis reaction formula of P-TETA, P-TEPA, and P-PEHA
    Synthesis reaction formula of P-TETA-AN, P-TEPA-AN, and P-PEHA-AN
    Fig. 3. Synthesis reaction formula of P-TETA-AN, P-TEPA-AN, and P-PEHA-AN
    ATR-FTIR spectra of the material before and after modification
    Fig. 4. ATR-FTIR spectra of the material before and after modification
    SEM images of pristine PP/PE SNW, and P-TETA-AO, P-TEPA-AO, P-PEHA-AO before and after uranium absorption(a~g), image on color changes of three kinds of adsorption materials before and after uranium adsorption (h) (color onlinr)
    Fig. 5. SEM images of pristine PP/PE SNW, and P-TETA-AO, P-TEPA-AO, P-PEHA-AO before and after uranium absorption(a~g), image on color changes of three kinds of adsorption materials before and after uranium adsorption (h) (color onlinr)
    (a) TG and (b) DTG curves of pristine PP/PE SNW, P-TETA-AO-U, P-TEPA-AO-U, and P-PEHA-AO-U (color online)
    Fig. 6. (a) TG and (b) DTG curves of pristine PP/PE SNW, P-TETA-AO-U, P-TEPA-AO-U, and P-PEHA-AO-U (color online)
    Diagrams of changes in water contact angle before and after modification of (a) P-TETA-AO, (b) P-TEPA-AO, and (c) P-PEHA-AO
    Fig. 7. Diagrams of changes in water contact angle before and after modification of (a) P-TETA-AO, (b) P-TEPA-AO, and (c) P-PEHA-AO
    Effects of pH on uranium removal ratio of (a) P-TETA-AO, (b) P-TEPA-AO and (c) P-PEHA-AO
    Fig. 8. Effects of pH on uranium removal ratio of (a) P-TETA-AO, (b) P-TEPA-AO and (c) P-PEHA-AO
    Dependence of uranium removal ratio on time, pseudo-first-order and pseudo-second-order models kinetic fitting for (a~c) P-TETA-AO, (d~f) P-TEPA-AO, (g~i) P-PEHA-AO
    Fig. 9. Dependence of uranium removal ratio on time, pseudo-first-order and pseudo-second-order models kinetic fitting for (a~c) P-TETA-AO, (d~f) P-TEPA-AO, (g~i) P-PEHA-AO
    Adsorption properties of (a~b) P-TETA-AO, (c~d) P-TEPA-AO, (e~f) P-PEHA-AO affected by the initial concentration of uranium and adsorption isotherm.
    Fig. 10. Adsorption properties of (a~b) P-TETA-AO, (c~d) P-TEPA-AO, (e~f) P-PEHA-AO affected by the initial concentration of uranium and adsorption isotherm.
    Langmuir and Freundlich isotherms models of (a~b) P-TETA-AO, (c~d) P-TEPA-AO, (e~f) P-PEHA-AO
    Fig. 11. Langmuir and Freundlich isotherms models of (a~b) P-TETA-AO, (c~d) P-TEPA-AO, (e~f) P-PEHA-AO
    Uranium removal ratio of P-TETA-AO, P-TEPA-AO, and P-PEHA-AO in simulated seawater.
    Fig. 12. Uranium removal ratio of P-TETA-AO, P-TEPA-AO, and P-PEHA-AO in simulated seawater.
    Adsorption-desorption efficiency of (a) P-TETA-AO, (b)P-TEPA-AO, and (c) P-PEHA-AO for uranium
    Fig. 13. Adsorption-desorption efficiency of (a) P-TETA-AO, (b)P-TEPA-AO, and (c) P-PEHA-AO for uranium
    ATR-FTIR spectra of (a) P-TETA-AO, (b) P-TEPA-AO, and (c) P-PEHA-AO before and after uranium adsorption
    Fig. 14. ATR-FTIR spectra of (a) P-TETA-AO, (b) P-TEPA-AO, and (c) P-PEHA-AO before and after uranium adsorption
    (a) XPS spectra of three materials before and after uranium adsorption; (b) U4f spectra after uranium adsorption;(c~k) spectra of various elements before and after uranium adsorption
    Fig. 15. (a) XPS spectra of three materials before and after uranium adsorption; (b) U4f spectra after uranium adsorption;(c~k) spectra of various elements before and after uranium adsorption
    元素ElementUZnVCuFeNiCoPb
    浓度 / (μg∙L-1) Ion concentration3304001506010010053
    Table 1. Ions concentration of simulated seawater

    准一级动力学模型

    Pseudo-first-order adsorption model

    准二级动力学模型

    Pseudo-second-order adsorption model

    k1 / 10-3(min-1)Qe / (mg·g-1)R12k2 / (g·(mg·min)-1)Qe / (mg·g-1)R22
    P-TETA-AO12.420.2440.861 00.0411.020.998 4
    P-TEPA-AO12.110.2580.882 90.0291.010.996 8
    P-PEHA-AO12.190.2960.858 00.0261.010.995 0
    Table 2. Fitting parameters of pseudo-first-order and pseudo-second-order models for uranium adsorption of P-TETA-AO, P-TEPA-AO, and P-PEHA-AO

    Langmuir等温吸附模型

    Langmuir isotherm model

    Freundlich等温吸附模型

    Freundlich isotherm model

    Qm / (mg·g-1)b / (L·mg-1)RL2KF1/nRF2
    P-TETA-AO66.574.2480.990 78.000.3460.607 4
    P-TEPA-AO67.162.7510.993 68.120.3210.613 1
    P-PEHA-AO67.521.6920.999 48.440.3080.859 8
    Table 3. Isotherm adsorption parameters for Langmuir isotherms model and Freundlich isotherm model
    Wanning REN, Xinxin FENG, Hongwei HAN, Jiangtao HU, Guozhong WU. Preparation of amidoxime-based adsorption materials with a multi-amino synergistic effect and their uranium adsorption performance[J]. Journal of Radiation Research and Radiation Processing, 2024, 42(2): 020202
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