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

doi:10.1016/j.reactfunctpolym.2012.11.011

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

Metallurgy

University of Johannesburg

Research output: Contribution to journal › Article › peer-review

51 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 language	English
Pages (from-to)	474-483
Number of pages	10
Journal	Reactive and Functional Polymers
Volume	73
Issue number	3
DOIs	https://doi.org/10.1016/j.reactfunctpolym.2012.11.011
Publication status	Published - 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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10.1016/j.reactfunctpolym.2012.11.011

Cite this

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

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.",

keywords = "Ion imprinting polymer, Kinetic modeling and isotherm, Selective extraction, Silver(I) ions",

author = "Meh Ahamed and Mbianda, {X. Y.} and Mulaba-Bafubiandi, {A. F.} and Ljiljana Marjanovic",

year = "2013",

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doi = "10.1016/j.reactfunctpolym.2012.11.011",

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T2 - Kinetic modeling and isotherm studies

AU - Ahamed, Meh

AU - Mbianda, X. Y.

AU - Mulaba-Bafubiandi, A. F.

AU - Marjanovic, Ljiljana

PY - 2013/3

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N2 - 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.

AB - 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.

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KW - Silver(I) ions

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

Abstract

Keywords

ASJC Scopus subject areas

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