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Synthesis and characterization of As(V)-imprinted smart polymer gel for selective adsorption of As(V) ions
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Paper Abstract

In this study, new As(V)-imprinted polymer (As(V)-IIP) for selective adsorption and separation of As(V) was prepared by synthesis procedure based on 2D imprinting approach. Initially, the polymeric core was synthesized via dispersion polymerization between glycidyl methacrylate as a functional monomer and trimethylolpropane trimethacrylate as a cross-linking agent. Then the ion imprinted layer was formed by grafting of 1-methylimidazole on the surface of the polymeric particles in presence of As(V) as a template ion. The newly synthesized As(V)-IIP was characterized using elemental microanalysis, scanning electron microscopy and nitrogen adsorption–desorption measurements. The effect of the porogen solvents acetonitrile, toluene and methanol on particle shape and morphology was presented. The adsorption properties of As(V)-IIP toward As(V) were studied by batch procedure. The optimal pH range for the quantitative sorption (> 95%) of As(V) was 7-9, and full desorption was achieved by 3 mol/L HCl. The As(V)-IIP possesses high capacity toward As(V) (9.8 μmol/g sorbent) and good mechanical and chemical stability. Experiments performed for selective determination of As(V) in water samples showed that the interfering matrix does not influence the extraction efficiency of As(V)-IIP. Finally, the prepared As(V)-imprinted smart polymer gel was successfully applied to the selective recognition and determination of As(V) ions in water samples.

Paper Details

Date Published: 30 December 2019
PDF: 8 pages
Proc. SPIE 11332, International Conference on Quantum, Nonlinear, and Nanophotonics 2019 (ICQNN 2019), 113320D (30 December 2019); doi: 10.1117/12.2553479
Show Author Affiliations
Ivanka Dakova, Sofia Univ. St. Kliment Ohridksi (Bulgaria)
Tanya Yordanova, Sofia Univ. St. Kliment Ohridksi (Bulgaria)
Irina Karadjova, Sofia Univ. St. Kliment Ohridksi (Bulgaria)

Published in SPIE Proceedings Vol. 11332:
International Conference on Quantum, Nonlinear, and Nanophotonics 2019 (ICQNN 2019)
Alexander A. Dreischuh; Tony Spassov; Isabelle Staude; Dragomir N. Neshev, Editor(s)

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