Extraction of natural radionuclides from aqueous solutions by novel maltolate-based task-specific ionic liquids

Sonja Platzer, Orhan Sap, Raphlin Leyma, Gabriele Wallner, Franz Jirsa, Wolfgang Kandioller (Corresponding author), Regina Krachler, Bernhard K. Keppler

Publications: Contribution to journalArticlePeer Reviewed

Abstract

Two novel maltol-based ionic liquids, namely [A336][Mal] and [C101][Mal], were synthesized as potential extracting agents for radionuclides from water. These two room temperature task-specific ionic liquids could be easily prepared by anion metathesis starting from commercially available materials. The isolated compounds were characterized by standard analytical methods. Their application as extraction agent for Unat., 234Th, 210Pb, 210Bi, 210Po and 226Ra was elucidated by liquid–liquid extraction and scintillation counting. Uranium was totally extracted by both ionic liquids over a broad pH range (2–8), while the other radionuclides were removed with differing efficacies depending on the respective pH value.

Original languageEnglish
Pages (from-to)2483-2488
Number of pages6
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume303
Issue number3
DOIs
Publication statusPublished - Mar 2015

Austrian Fields of Science 2012

  • 104003 Inorganic chemistry
  • 104002 Analytical chemistry
  • 104020 Radiochemistry

Keywords

  • Ionic liquids
  • Natural radionuclides
  • Extraction of radionuclides
  • Maltol
  • PHYSICOCHEMICAL PROPERTIES
  • DRINKING-WATER
  • URANIUM
  • AMMONIUM
  • PHOSPHONIUM
  • EXPOSURE

Cite this