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KMID : 1171820070220030077
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Journal of Environmental and Sanitary Engineering
2007 Volume.22 No. 3 p.77 ~ p.87
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Adsorption of U(Ⅵ), Fe(Ⅱ), Sm(Ⅲ) Ions on OenNen-Styrene DVB Synthetic Resin
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Lee Chi-Young
Kim Joon-Tae
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Abstract
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The ion exchange resins have been synthesized from chlormethyl styrene - 1,4 - divinylbenzene(DVB) with 1%, 3%, and 5%-crosslinking and macrocyclic ligand of OenNen-H₄ by copolymerization method and the adsorption characteristics of uranium(Ⅵ) iron(Ⅱ) and samarium(Ⅲ) metallic ions have been investigated in various experimental conditions. The synthesis of these resins was confirmed by content of chlorine, element analysis, and IR-spectrum. The effects of pH, time, dielectric constant of solvent and crosslink on adsorption of metallic ions were investigated. The uranium ion was showed fast adsorption on the resins above pH 3. The optimum equilibrium time for adsorption of metallic ions was about two hours. The adsorption selectivity determined in ethanol was in increasing order uranium UO₂²?> Fe²?＞ Sm?? ion. The adsorption was in order of 1%, 3%, and 5% crosslink resin and adsorption of resin decreased in proportion to order of dielectric constant of solvent.
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KEYWORD
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divinylbenzene(DVB), OeNen-H₄, crosslink, styrene, macrocyclic ligand
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