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Kinetics of hexavalent chromium sorption on amino-functionalized macroporous glycidyl methacrylate copolymer
A Nastasović1, Z Sandić, Lj Surucić
1Polymer Department, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade 11001, Serbia. anastaso@chem.bg.ac.rs
Abstract:
Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), poly(GMA-co-EGDMA), with different porosity parameters were synthesized by suspension copolymerization and functionalized with ethylene diamine and diethylene triamine. The kinetics of Cr(VI) sorption by amino-functionalized poly(GMA-co-EGDMA) was investigated under non-competitive conditions. Competitive kinetics was studied from following multicomponent solutions: Cu(II) and Cr(VI); Cu(II), Co(II), Cd(II) and Ni(II); Cr(VI), Cu(II), Co(II) and Cd(II) solutions. Two kinetic models (the pseudo-first and pseudo-second-order) were used to determine the best-fit equation for the metals sorption by poly(GMA-co-EGDMA)-en and poly(GMA-co-EGDMA)-deta.
