Preparation and characterization of tri-n-octylamine microcapsule (TOA-MC) used for selective separation of Re(VII) [chemical analogs of Tc(VII)] in the high level liquid radioactive waste (HLLW)

Tsuey Lin Tsai, Hitoshi Mimura, Chuan Pin Lee, Shih Chin Tsai

Research output: Contribution to journalArticle

Abstract

TOA-MC was developed to act as absorbent for selective separation of 99 Tc(VII) from high-level radioactive liquid waste. The uptake (%) of Re(VII) a substitute for Tc(VII) due to similar chemical behavior by TOA-MC normally exceeding 95% in the presence of dilute HNO 3 was strongly retained and decreased with higher HNO 3 concentration by batch method. The surface morphology, thermal stability and diameter/size distribution of the microcapsules were examined by scanning electron microscopy, thermogravimetric analysis and digital microscope, respectively. The chemical structure was characterized using Fourier transform infrared spectroscopy and 1 H nuclear magnetic resonance spectroscopy.

Original languageEnglish
Pages (from-to)1235-1242
Number of pages8
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume319
Issue number3
DOIs
Publication statusPublished - 2019 Mar 15

All Science Journal Classification (ASJC) codes

  • 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 'Preparation and characterization of tri-n-octylamine microcapsule (TOA-MC) used for selective separation of Re(VII) [chemical analogs of Tc(VII)] in the high level liquid radioactive waste (HLLW)'. Together they form a unique fingerprint.

  • Cite this