Adsorption and separation behavior of strontium and yttrium using a silica-based CMPO adsorbent

Taiga Kawamura, Tatsuya Ito, Seong Yun Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

To separate Y(III) from a Sr(II)–Y(II) mixture, two silica-based adsorbents, CMPO/SiO 2 -P and (CMPO + Dodec)/SiO 2 -P were prepared by impregnating octyl(phenyl)-N,N-diisobutylcarbamoyl methylphosphine oxide (CMPO) extractant and a molecule modifier (1-Dodecanol) into macroporous silica/polymer composite support (SiO 2 -P). The Adsorbents showed high adsorption affinity to Y(III) and weak adsorption affinity to Sr(II) in HNO 3 solution. The amount of adsorbed Y(III) increased with the HNO 3 in the solution. The amount of adsorbed Y(III) increased with contact time and reached equilibrium within 30 min. The results showed that a pseudo-second-order kinetic model with a high correlation coefficient described the adsorption process better than other kinetic models. Successful Y(III) separation from Sr(II)–Y(III) mixture in HNO 3 solution was achieved.

Original languageEnglish
Pages (from-to)9-14
Number of pages6
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume320
Issue number1
DOIs
Publication statusPublished - 2019 Apr 15

Keywords

  • CMPO-impregnated adsorbent
  • Extraction chromatography
  • Separation
  • Strontium
  • Yttrium

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

Fingerprint Dive into the research topics of 'Adsorption and separation behavior of strontium and yttrium using a silica-based CMPO adsorbent'. Together they form a unique fingerprint.

Cite this