Uranyl ion adsorptivity of N-vinyl 2-pyrrolidone/acrylonitrile copolymeric hydrogels containing amidoxime groups
POLYMER BULLETIN, vol.44, pp.593-600, 2000 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 44
- Publication Date: 2000
- Journal Name: POLYMER BULLETIN
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.593-600
- Hacettepe University Affiliated: No
Abstract
N-vinyl 2-pyrrolidone (VP) / Acrylonitrile (AN) copolymeric hydrogels were synthesized by using gamma-radiation and amidoximated for the purpose of uranyl ion adsorption. Optimum amidoximation time was determined by following the uranyl ion, UO22+, 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 UO22+ and amidoxime groups comply with Langmuir type isotherm. The adsorption capacity was found as 0.54 g UO22+ /g dry amidoximated copolymeric hydrogels. From the stoichiometric calculations, it was found that the bonding between UO22+ and amidoxime groups is I to 4.