Poly(vinyl pyridine-poly ethylene glycol methacrylate-ethylene glycol dimethacrylate) beads for heavy metal removal.

Poly(vinyl pyridine-poly ethylene glycol methacrylate-ethylene glycol dimethacrylate) beads for heavy metal removal. Research Abstract Details 

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Poly(vinyl pyridine-poly ethylene glycol methacrylate-ethylene glycol dimethacrylate) beads for heavy metal removal. Abstract Text:

Poly(vinyl pyridine-poly ethylene glycol methacrylate-ethylene glycol dimethacrylate) [poly(VP-PEGMA-EGDMA)] beads with an average size of 30-100mum were prepared by suspension polymerization. Poly(VP-PEGMA-EGDMA) beads were characterized by swelling studies, scanning electron microscopy (SEM), elemental analysis, Fourier Transform Infrared Spectroscopy (FTIR). The beads with a swelling ratio of 65% were used for the heavy metal removal studies. Chelation capacity of the beads for the selected metal ions, i.e., Pb(II), Cd(II), Cr(III) and Cu(II) were investigated in aqueous media containing different amounts of these ions (5-80mg/l) and at different pH values (2.0-10.0). The maximum chelation capacities of the poly(VP-PEGMA-EGDMA) beads were 18.23mg/g for Pb(II), 16.50mg/g for Cd(II), 17.38mg/g for Cr(III) and 18.25mg/g for Cu(II). The affinity order on mass basis was observed as follows: Cu(II)>Pb(II)>Cr(III)>Cd(II). pH significantly affected the chelation capacity of VP incorporated beads. Heavy metal adsorption on the poly(PEGMA-EGDMA) control microspheres was negligible. Regeneration of the chelating beads was easily performed with 0.1M HNO(3). It was shown that these beads can be used effectively for heavy metal removal from aqueous solutions with repeatedly adsorption-desorption operations. These features show that poly(VP-PEGMA-EGDMA) beads are potential candidate sorbent for heavy metal removal.

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Poly(vinyl pyridine-poly ethylene glycol methacrylate-ethylene glycol dimethacrylate) beads for heavy metal removal. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of hazardous materials

VOLUME: 155

Page Numbers: 114-20

Journal Abbreviation: J. Hazard. Mater.

ISSN: 0304-3894

DAY: 19

MONTH: 11

YEAR: 2007

Poly(vinyl pyridine-poly ethylene glycol methacrylate-ethylene glycol dimethacrylate) beads for heavy metal removal. Information

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LANGUAGE: eng

NlmUniqueID: 9422688

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Grant and Affiliation Information for Poly(vinyl pyridine-poly ethylene glycol methacrylate-ethylene glycol dimethacrylate) beads for heavy metal removal.

AFFILIATION: Department of Chemical Engineering, Faculty of Engineering, Hacettepe University, 06532 Ankara, Turkey.

Country: Netherlands

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MEDLINETA: J Hazard Mater

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