The uptake behavior of Pu(IV) has been investigated by using calcium alginate gel polymer (CaALG) and TBP microcapsules (TBP-CaALG). The characterization of CaALG and TBP-CaALG was examined by SEM and IR, and the uptake properties and distribution of Pu(IV) ions were estimated by batch method. The uptake rate of Pu(IV) on CaALG and TBP-CaALG in the presence of 5 M HNO3 was attained within 6 and 4 h, respectively, and K d values for CaALG and TBP-CaALG after 7 h-shaking were 50.2 and 53.2 cm 3/g, respectively. Relatively large K d values (90.3-425 cm3/g) were obtained for fresh CaALG and TBP-CaALG in the presence of 0.5-2 M HNO3. Thus CaALG and TBP-CaALG are effective for the separation of Pu(IV) in the presence of highly concentrated HNO3.
ASJC Scopus subject areas
- Analytical Chemistry
- Nuclear Energy and Engineering
- Radiology Nuclear Medicine and imaging
- Public Health, Environmental and Occupational Health
- Health, Toxicology and Mutagenesis