Yu-hui Liu, Meng Tang, Shuang Zhang, Yu-ling Lin, Ying-cai Wang, You-qun Wang, Ying Dai, Xiao-hong Cao, Zhi-bin Zhang, and Yun-hai Liu, Insights into U(VI) adsorption behavior onto polypyrrole coated 3R-MoS2 nanosheets prepared with the molten salt electrolysis method, Int. J. Miner. Metall. Mater.,(2020). https://doi.org/10.1007/s12613-020-2154-5
Cite this article as:
Yu-hui Liu, Meng Tang, Shuang Zhang, Yu-ling Lin, Ying-cai Wang, You-qun Wang, Ying Dai, Xiao-hong Cao, Zhi-bin Zhang, and Yun-hai Liu, Insights into U(VI) adsorption behavior onto polypyrrole coated 3R-MoS2 nanosheets prepared with the molten salt electrolysis method, Int. J. Miner. Metall. Mater.,(2020). https://doi.org/10.1007/s12613-020-2154-5
Research Article

Insights into U(VI) adsorption behavior onto polypyrrole coated 3R-MoS2 nanosheets prepared with the molten salt electrolysis method

+ Author Affiliations
  • Received: 18 June 2020Revised: 23 July 2020Accepted: 27 July 2020Available online: 30 July 2020
  • To improve the separation capacity of uranium in aqueous solutions, 3R-MoS2 nanosheets were prepared with molten salt electrolysis and further modified with polypyrrole (PPy) to synthesize a hybrid nanoadsorbent (PPy/3R-MoS2). The preparation conditions of PPy/3R-MoS2 were investigated and the obtained nanosheets were characterized with SEM, HRTEM, XRD, FTIR, and XPS. The results show that PPy/3R-MoS2 exhibited enhanced adsorption capacity towards U(VI) compared to pure 3R-MoS2 and PPy; the maximum adsorption was 200.4 mg/g. The adsorption mechanism was elucidated with XPS and FTIR: 1) negatively charged PPy/3R-MoS2 nanosheets attracted UO22+ by electrostatic attraction; 2) exposed C, N, Mo, and S atoms complexed with U(VI) through coordination; 3) Mo in the complex partly reduced the adsorbed U(VI) to U(IV), which further regenerated the adsorption point and continuously adsorbed U(VI). The design of the PPy/3R-MoS2 composite with high adsorption capacity and chemical stability provides a new direction for the removal of radionuclide.
  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Share Article

    Article Metrics

    Article views (1769) PDF downloads(55) Cited by()
    Proportional views

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return