Uranyl ion adsorptivity of N-vinyl 2-pyrrolidone/acrylonitrile copolymeric hydrogels containing amidoxime groups |
| |
Authors: | Nursel Pekel Nurettin ?ahiner Pinar Akka? Olgun Güven |
| |
Affiliation: | (1) Department of Chemistry, Hacettepe University, 06532 Beytepe, Ankara, Turkey, TR |
| |
Abstract: | 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.
Received: 7 September 1999/Revised version: 21 February 2000/Accepted: 18 March 2000 |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|