Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/79285
Type: Artigo de periódico
Title: Synthesis, characterization and metal adsorption properties of the new ion exchanger polymer 3-n-propyl(4-methylpyridinium) silsesquioxane chloride
Author: Magosso, HA
Panteleimonov, AV
Kholin, YV
Gushikem, Y
Abstract: The preparation and anion exchange properties of 3-n-propyl(4-methylpyridinium) silsesquioxane chloride polymer are described. This new polymer was prepared by the sol-gel processing method and is designated as SiPic(+)Cl(-). It is insoluble in water and showed an anion exchange capacity of 1.46 x 10(-3) molg(-1). The adsorption isotherms of ZnCl(2), CdCl(2) and HgCl(2) were determined from aqueous solutions and the adsorption equilibria simulations fit the model of fixed bidentate centers with the absence of lateral interactions and energetic heterogeneity between them. The metal ions diffuse into the solid solution interface and are dominantly present as MCl(4)(2-) species for Zn(II), MCl(4)(2-) and MCl(3)(-) species for Cd(II) and MCl(3)(-) species for Hg(II). (c) 2006 Elsevier Inc. All rights reserved.
Subject: 3-n-propyl(4-methylpyridinium) silsesquioxane chloride
ion exchanger
adsorption of MCl(2) (M = Zn, Cd and Hg)
adsorption isotherms
adsorption equilibria simulation
Country: EUA
Editor: Academic Press Inc Elsevier Science
Rights: fechado
Identifier DOI: 10.1016/j.jcis.2006.07.014
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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