Selective radionuclide (Cs+, Sr2+, and Ni 2+) ion-exchange by K2xMgxSn 3-xS6 (x=0.5-0.95) (KMS-2)

Joshua L. Mertz, Emmanouil J. Manos, Mercouri G. Kanatzidis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


137Cs and 90Sr, both byproducts of the fission process, make up the majority of high-level waste from nuclear power plants. 63Ni is a byproduct of the erosion-corrosion process of the reactor components in nuclear energy plants. The concentrations of these ions in solution determine the Waste Class (A, B, or C) and thus selective removal of these ions over large excesses of other ions is necessary to reduce waste and cut costs. Herein we report the use of the Inorganic Ion Specific Media (ISM) K2xMgxSn3-xS6 (x=0.5-0.9) (KMS-2) for the ion exchange of Cs+, Sr2+, and Ni2+ in several different conditions. We will also report the stability of this new material in the general conditions found at nuclear power plants (pH ∼6-8) and DOE sites (pH>10). Measurements at low concentrations were conducted with inductively coupled plasma mass spectrometry and Kd values are reported for each of the ions in a variety of conditions.

Original languageEnglish (US)
Title of host publicationScientific Basis for Nuclear Waste Management XXXIV
PublisherMaterials Research Society
Number of pages6
ISBN (Print)9781605112428
StatePublished - Jan 1 2010

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Selective radionuclide (Cs+, Sr2+, and Ni 2+) ion-exchange by K2xMgxSn 3-xS6 (x=0.5-0.95) (KMS-2)'. Together they form a unique fingerprint.

Cite this