Summary
N-vinyl 2-pyrrolidone (VP) / Acrylonitrile (AN) copolymeric hydrogels were synthesized by using γ-radiation and amidoximated for the purpose of uranyl ion adsorption. Optimum amidoximation time was determined by following the uranyl ion, UO2 2+, adsorption capacity. The adsorption of amidoximated copolymers was studied from different uranyl ion solutions (1000–1850 ppm). The results of all adsorption studies showed that the interaction between UO2 2+ and amidoxime groups comply with Langmuir type isotherm. The adsorption capacity was found as 0.54 g UO2 2+ /g dry amidoximated copolymeric hydrogels. From the stoichiometric calculations, it was found that the bonding between UO2 2+ and amidoxime groups is 1 to 4.
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Received: 7 September 1999/Revised version: 21 February 2000/Accepted: 18 March 2000
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Pekel, N., Şahiner, N., Akkaş, P. et al. Uranyl ion adsorptivity of N-vinyl 2-pyrrolidone/acrylonitrile copolymeric hydrogels containing amidoxime groups. Polymer Bulletin 44, 593–600 (2000). https://doi.org/10.1007/s002890070083
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DOI: https://doi.org/10.1007/s002890070083