Studies on BenzoDODA encapsulated polymeric beads for separation of plutonium from acidic solution

摘要

BenzoDODA encapsulated polymeric beads were synthesized by phase inversion technique and evaluated for the separation of plutonium from nitric acid medium. The beads were characterized by FT-IR, TGA and SEM techniques to gain insight into their structure and morphology. Kinetics studies showed that the sorption of plutonium was fast and, equilibrium was achieved within 60 min of equilibration. Sorption isotherm studies have indicated that uptake increases with the increase of metal ion concentration, the sorption data fitted well to Langmuir model. Back extraction was effectively carried out using 0.3 M Hydrazine + 0.5 M HNO3. Reusability of the beads was established by multiple sorption desorption experiments. The beads were found to be quite stable as no significant structural deformation or leaching out of the extractant was observed in 4.0 M HNO3 solution, up to studied equilibration time of 8 days. (C) 2015 Elsevier B.V. All rights reserved.