Synthesis and adsorption properties of polymeric and polymer-based hybrid adsorbent for hexavalent chromium removal

Dilek Duranoĝlu; Ismet Gül Buyruklardan Kaya; Ulker Beker; Bahire Filiz Şenkal

doi:10.1016/j.cej.2011.11.028

Synthesis and adsorption properties of polymeric and polymer-based hybrid adsorbent for hexavalent chromium removal

Dilek Duranoĝlu, Ismet Gül Buyruklardan Kaya, Ulker Beker^*, Bahire Filiz Şenkal

^*Corresponding author for this work

Department of Chemistry

Yildiz Technical University

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

61 Citations (Scopus)

Abstract

Iron oxide modified polyglycidyl methacrylate graft copolymer (PGMA) hybrid adsorbent (PGMAFe), have been synthesized and characterized; and their use in Cr(VI) removal was studied. The adsorption capacities were determined at different pH values. The results showed the adsorption efficiency was highly pH dependent. Cr(VI) adsorption data were well fitted with the Freundlich adsorption isotherm model. The maximum Cr(VI) adsorption capacities of PGMA and PGMAFe sorbents were obtained at pH 4 as 132.5 and 162.9. mg/g, respectively. The results of the kinetic experiments showed that Cr(VI) adsorption onto both sorbents followed the pseudo-second-order kinetic model. A series of column experiments were carried out to determine the breakthrough curves. The column was regenerated by eluting Cr(VI) with NaOH (10%, w/v) solution.

Original language	English
Pages (from-to)	103-112
Number of pages	10
Journal	Chemical Engineering Journal
Volume	181-182
DOIs	https://doi.org/10.1016/j.cej.2011.11.028
Publication status	Published - 1 Feb 2012

Keywords

Cr(VI) removal
Hybrid polymer
Magnetic separation
Sorption kinetic

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10.1016/j.cej.2011.11.028

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title = "Synthesis and adsorption properties of polymeric and polymer-based hybrid adsorbent for hexavalent chromium removal",

abstract = "Iron oxide modified polyglycidyl methacrylate graft copolymer (PGMA) hybrid adsorbent (PGMAFe), have been synthesized and characterized; and their use in Cr(VI) removal was studied. The adsorption capacities were determined at different pH values. The results showed the adsorption efficiency was highly pH dependent. Cr(VI) adsorption data were well fitted with the Freundlich adsorption isotherm model. The maximum Cr(VI) adsorption capacities of PGMA and PGMAFe sorbents were obtained at pH 4 as 132.5 and 162.9. mg/g, respectively. The results of the kinetic experiments showed that Cr(VI) adsorption onto both sorbents followed the pseudo-second-order kinetic model. A series of column experiments were carried out to determine the breakthrough curves. The column was regenerated by eluting Cr(VI) with NaOH (10%, w/v) solution.",

keywords = "Cr(VI) removal, Hybrid polymer, Magnetic separation, Sorption kinetic",

author = "Dilek Duranoĝlu and {Buyruklardan Kaya}, {Ismet G{\"u}l} and Ulker Beker and {\c S}enkal, {Bahire Filiz}",

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AU - Duranoĝlu, Dilek

AU - Buyruklardan Kaya, Ismet Gül

AU - Beker, Ulker

AU - Şenkal, Bahire Filiz

PY - 2012/2/1

Y1 - 2012/2/1

N2 - Iron oxide modified polyglycidyl methacrylate graft copolymer (PGMA) hybrid adsorbent (PGMAFe), have been synthesized and characterized; and their use in Cr(VI) removal was studied. The adsorption capacities were determined at different pH values. The results showed the adsorption efficiency was highly pH dependent. Cr(VI) adsorption data were well fitted with the Freundlich adsorption isotherm model. The maximum Cr(VI) adsorption capacities of PGMA and PGMAFe sorbents were obtained at pH 4 as 132.5 and 162.9. mg/g, respectively. The results of the kinetic experiments showed that Cr(VI) adsorption onto both sorbents followed the pseudo-second-order kinetic model. A series of column experiments were carried out to determine the breakthrough curves. The column was regenerated by eluting Cr(VI) with NaOH (10%, w/v) solution.

AB - Iron oxide modified polyglycidyl methacrylate graft copolymer (PGMA) hybrid adsorbent (PGMAFe), have been synthesized and characterized; and their use in Cr(VI) removal was studied. The adsorption capacities were determined at different pH values. The results showed the adsorption efficiency was highly pH dependent. Cr(VI) adsorption data were well fitted with the Freundlich adsorption isotherm model. The maximum Cr(VI) adsorption capacities of PGMA and PGMAFe sorbents were obtained at pH 4 as 132.5 and 162.9. mg/g, respectively. The results of the kinetic experiments showed that Cr(VI) adsorption onto both sorbents followed the pseudo-second-order kinetic model. A series of column experiments were carried out to determine the breakthrough curves. The column was regenerated by eluting Cr(VI) with NaOH (10%, w/v) solution.

KW - Cr(VI) removal

KW - Hybrid polymer

KW - Magnetic separation

KW - Sorption kinetic

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Synthesis and adsorption properties of polymeric and polymer-based hybrid adsorbent for hexavalent chromium removal

Abstract

Keywords

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