Full Paper

Selective Adsorption of Co(II) Ions by Whisker Surface Ion-Imprinted Polymer: Equilibrium and Kinetics Modeling

  1. Jianming Pan1,
  2. Wei Guan1,
  3. Zulei Zhang1,2,
  4. Xue Wang1,
  5. Chunxiang Li1,
  6. Prof. Dr. Yongsheng Yan1,*

Article first published online: 7 JAN 2011

DOI: 10.1002/cjoc.201190026

Issue

Chinese Journal of Chemistry

Chinese Journal of Chemistry

Volume 28, Issue 12, pages 2483–2488, December, 2010

Additional Information

How to Cite

Pan, J., Guan, W., Zhang, Z., Wang, X., Li, C. and Yan, Y. (2010), Selective Adsorption of Co(II) Ions by Whisker Surface Ion-Imprinted Polymer: Equilibrium and Kinetics Modeling. Chin. J. Chem., 28: 2483–2488. doi: 10.1002/cjoc.201190026

Author Information

  1. 1

    School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China

  2. 2

    School of Biology and Chemical Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China

*School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China, Tel.: 0086-0511-88790683; Fax: 0086-0511-88791800

Publication History

  1. Issue published online: 7 JAN 2011
  2. Article first published online: 7 JAN 2011
  3. Manuscript Accepted: 11 AUG 2010
  4. Manuscript Received: 4 JAN 2010

Funded by

  • the National Natural Science Foundation of China. Grant Number: 20877036, 21077046
  • Ph.D. Programs Foundation of Ministry of Education of China. Grant Number: 20093227110015

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Keywords:

  • surface ion-imprinted polymer;
  • selective adsorption;
  • Co(II) ions;
  • kinetics;
  • equilibrium

Abstract

Based on sodium trititanate whisker as support particles, the surface ion-imprinted polymer (S-IIP) was synthesized for the selective adsorption of Co(II) ions from aqueous solution. Characterization of S-IIP was achieved by FTIR spectra and SEM micrographs. Kinetic properties were successfully investigated by the pseudo-first-order model and pseudo-second-order model, and a chemisorption process as the essential adsorption step was also proposed. Equilibrium data were fitted with the Langmuir, Dubinin-Radushkevich and Freundlich isotherm equations, and the maximum adsorption amount of monolayer saturation for S-IIP was 33.75 mg/g at 298 K. Moreover, dimensionless separation factor RL (RL<1.0) indicated a highly favourable adsorption system between Co(II) ions and S-IIP. Selectivity experiments showed that selective adsorption of Co(II) ions for S-IIP was significantly higher than that of non-imprinted polymer (NIP).

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