Adsorption of Chromium(VI) on Radiation Grafted N,N-dimethylaminoethylmethacrylate onto Polypropylene, from Aqueous Solutions

Polypropylene (PP) grafted with dimethylaminoethylmethacrylate (DMAEMA), was prepared by irradiation with a 60Co γsource. The obtained PP-g-DMAEMA was used to study the Cr(VI) ion adsorption as a function of contact time, initial pH, initial concentration of metal ion and temperature. Chromium adsor...

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Bibliographic Details
Published in:Journal of the Mexican Chemical Society 2013-04, Vol.57 (2), p.80-84
Main Authors: Burillo, Guillermina, Serrano-Gómez, Juan, Bonifacio-Martínez, Juan
Format: Article
Language:eng ; por
Subjects:
Chemistry, Multidisciplinary
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Summary:Polypropylene (PP) grafted with dimethylaminoethylmethacrylate (DMAEMA), was prepared by irradiation with a 60Co γsource. The obtained PP-g-DMAEMA was used to study the Cr(VI) ion adsorption as a function of contact time, initial pH, initial concentration of metal ion and temperature. Chromium adsorption data on PP-g-DMAEMA at various initial concentration fit well the Freundlich and Langmuir isotherms. The maximum adsorption capacity (a max) was found to be 0.3103 × 0-4 mol g-1. The thermodynamic parameters ΔH0, ΔG0 and ΔS0 were estimated showing the adsorption process to be exothermic and spontaneous.
ISSN:1870-249X