Related Experiment Video
Updated: Jul 7, 2026

Automated 90Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level
Published on: June 6, 2018
Layered metal sulfides: exceptionally selective agents for radioactive strontium removal
Manolis J Manos1, Nan Ding, Mercouri G Kanatzidis
1Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA.
Abstract:
In this article, we report the family of robust layered sulfides K(2x)Mn(x)Sn(3-x)S(6) (x = 0.5-0.95) (KMS-1). These materials feature hexagonal [Mn(x)Sn(3-x)S(6)](2x-) slabs of the CdI(2) type and contain highly mobile K(+) ions in their interlayer space that are easily exchangeable with other cations and particularly strontium. KMS-1 display outstanding preference for strontium ions in highly alkaline solutions containing extremely large excess of sodium cations as well as in acidic environment where most alternative adsorbents with oxygen ligands are nearly inactive. The implication of these results is that simple layered sulfides should be considered for the efficient remediation of certain nuclear wastes.
Related Concept Videos
Microbial Bioremediation of Uranium
Extraction: Advanced Methods
Precipitation and Co-precipitation
Microbial Leaching
Masking and Demasking Agents
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on the metal...
Qualitative Analysis
For instance, group IV...

