Selective uptake of plutonium (IV) on calcium alginate gel polymer and TBP microcapsule

Yan Wu, Hitoshi Mimura, Yuichi Niibori

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)513-520
Number of pages8
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume281
Issue number3
DOIs
Publication statusPublished - 2009 Sep

Keywords

  • Alginate
  • Encapsulation
  • Microcapsule
  • Plutonium
  • TBP
  • Uptake

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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