Study on radiation effects on (MOTDGA–TOA)/SiO2-P adsorbent for separation of platinum group metals from high-level radioactive waste

Tatsuya Ito, Ryuji Nagaishi, Takaumi Kimura, Seong Yun Kim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

To discuss the applicability of a novel macroporous silica-based (MOTDGA–TOA)/SiO2-P adsorbent which was developed to separate platinum group metals (PGMs) from high level liquid waste by extraction chromatography to radiation field, batch adsorption behavior, stability of the adsorbent and retention capability of PGMs under irradiation were investigated by using gamma-ray emitted from60Co. Difference of adsorption behaviors of Ru(III), Rh(III) and Pd(II) were not observed with or without the irradiation up to 100 kGy of absorbed dose at least. The retention ratio of Pd(II) showed very gradual decrease, and was over 99 % at absorbed dose of about 800 kGy.

Original languageEnglish
Pages (from-to)419-427
Number of pages9
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume305
Issue number2
DOIs
Publication statusPublished - 2015 Aug 25

Keywords

  • Gamma-ray irradiation
  • High-level liquid waste (HLLW)
  • Macroporous silica-based adsorbent
  • Platinum group metals (PGMs)

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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