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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.
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