Ion imprinted polymers for the selective extraction of silver(I) ions in aqueous media: Kinetic modeling and isotherm studies

Meh Ahamed, X. Y. Mbianda, A. F. Mulaba-Bafubiandi, Ljiljana Marjanovic

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)

Abstract

Ion imprinted polymers (IIPs) for selective extraction of Ag(I) ions from aqueous solution were synthesized by a precipitation polymerization method using two functional monomers, 4-vinyl pyridine (4-VP) and 1-vinyl imidazole (1-VID), and N,N-ethylene bisacrylamide (EBAm) as the cross linker. Batch adsorption experiments were carried out as a function of Ag(I) imprinted polymer amount, agitation time, pH and initial Ag(I) concentration. The kinetic studies indicated that pseudo-second-order kinetic model best describes the adsorption behavior, while the adsorption data correlated well with the Langmuir isotherm. Furthermore the selectivity studies revealed that the ion imprinted polymers had a higher absorption capacity and a higher selectivity, for the Ag(I) ions, than the control polymers.

Original languageEnglish
Pages (from-to)474-483
Number of pages10
JournalReactive and Functional Polymers
Volume73
Issue number3
DOIs
Publication statusPublished - Mar 2013

Keywords

  • Ion imprinting polymer
  • Kinetic modeling and isotherm
  • Selective extraction
  • Silver(I) ions

ASJC Scopus subject areas

  • General Chemistry
  • Environmental Chemistry
  • Biochemistry
  • General Chemical Engineering
  • Polymers and Plastics
  • Materials Chemistry

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