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Erschienen in: Polymer Bulletin 2/2012

01.01.2012 | Original Paper

Modeling of kinetics of pertechnetate removal by amino-functionalized glycidyl methacrylate copolymer

verfasst von: Danijela D. Maksin, Radmila V. Hercigonja, Magdalena Ž. Lazarević, Marija J. Žunić, Aleksandra B. Nastasović

Erschienen in: Polymer Bulletin | Ausgabe 2/2012

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Abstract

Technetium-99 comprises a significant health risk, since edible plants can bioaccumulate and convert it to more lipophilic species that cannot be excreted through urine. Batch kinetics of pertechnetate removal from aqueous solutions by two samples of crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) functionalized with diethylene triamine (PGME-deta) was investigated at the optimum pH value of 3.0, and the initial solution activity of 325 MBq dm−3. PGME-deta was characterized by elemental analysis, mercury intrusion porosimetry, and scanning electron microscopy. Five kinetic models (pseudo-first, pseudo-second order, Elovich, Bangham, and intraparticle diffusion) were used to determine the best-fit equation for pertechnetate sorption. After 24 h, PGME-deta samples sorbed more than 98% of pertechnetate present, with maximum sorption capacity of 25.5 MBq g−1, showing good potential for remediation of slightly contaminated groundwater.

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Metadaten
Titel
Modeling of kinetics of pertechnetate removal by amino-functionalized glycidyl methacrylate copolymer
verfasst von
Danijela D. Maksin
Radmila V. Hercigonja
Magdalena Ž. Lazarević
Marija J. Žunić
Aleksandra B. Nastasović
Publikationsdatum
01.01.2012
Verlag
Springer-Verlag
Erschienen in
Polymer Bulletin / Ausgabe 2/2012
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-011-0634-5

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