SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2018, Vol. 26 ›› Issue (3): 494-500.DOI: 10.1016/j.cjche.2017.08.014

• Separation Science and Engineering • 上一篇    下一篇

Synthesis, adsorption and selectivity of inverse emulsion Cd(II) imprinted polymers

Luwei Li, Fang Zhu, Yanhong Lu, Jian Guan   

  1. College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
  • 收稿日期:2017-01-09 修回日期:2017-08-29 出版日期:2018-03-28 发布日期:2018-04-18
  • 通讯作者: Fang Zhu
  • 基金资助:

    Supported by the National Natural Science Foundation of China(21276174) and the Natural Science Foundation of Shanxi Province(2013011040-1).

Synthesis, adsorption and selectivity of inverse emulsion Cd(II) imprinted polymers

Luwei Li, Fang Zhu, Yanhong Lu, Jian Guan   

  1. College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
  • Received:2017-01-09 Revised:2017-08-29 Online:2018-03-28 Published:2018-04-18
  • Contact: Fang Zhu
  • Supported by:

    Supported by the National Natural Science Foundation of China(21276174) and the Natural Science Foundation of Shanxi Province(2013011040-1).

摘要: Inverse emulsion polymerization was employed to synthesize inverse emulsion Cd(Ⅱ) imprinted polymers (IEⅡ P). The morphology and functional groups of IEⅡP were characterized by SEM,FTIR and TG. Static adsorption experiments and competitive adsorption test were used to evaluate the adsorption ability of IEⅡP. The adsorption capacity of polymers could reach 86.7 mg·g-1 under the optimal adsorption conditions. The pseudo second order kinetic model and Langmuir isotherm model could be used to analyze the experimental data well. The adsorption process of IEⅡP was chemical adsorption process and monomolecular type. Thermodynamic parameters showed that the adsorption process was endothermic and could occur spontaneously. The selectivity coefficients k of Cd2+/v, Cd2+/Zn2+ and Cd2+/Cu2+ were 2.4998, 1.2437 and 4.6882, respectively. The proposed method provides a new thought for removing Cd(Ⅱ) in water samples.

关键词: Cd (II) imprinted polymers, Inverse emulsion, Kinetic, Thermodynamics

Abstract: Inverse emulsion polymerization was employed to synthesize inverse emulsion Cd(Ⅱ) imprinted polymers (IEⅡ P). The morphology and functional groups of IEⅡP were characterized by SEM,FTIR and TG. Static adsorption experiments and competitive adsorption test were used to evaluate the adsorption ability of IEⅡP. The adsorption capacity of polymers could reach 86.7 mg·g-1 under the optimal adsorption conditions. The pseudo second order kinetic model and Langmuir isotherm model could be used to analyze the experimental data well. The adsorption process of IEⅡP was chemical adsorption process and monomolecular type. Thermodynamic parameters showed that the adsorption process was endothermic and could occur spontaneously. The selectivity coefficients k of Cd2+/v, Cd2+/Zn2+ and Cd2+/Cu2+ were 2.4998, 1.2437 and 4.6882, respectively. The proposed method provides a new thought for removing Cd(Ⅱ) in water samples.

Key words: Cd (II) imprinted polymers, Inverse emulsion, Kinetic, Thermodynamics