K_2x Sn_4-x S_8-x (x = 0.65-1): a new metal sulfide for rapid and selective removal of Cs⁺, Sr²⁺ and UO₂²⁺ ions.

ABSTRACT: The fission of uranium produces radionuclides, ¹³⁷Cs and ⁹⁰Sr, which are major constituents of spent nuclear fuel. The half-life of ¹³⁷Cs and ⁹⁰Sr is nearly 30 years and thus that makes them harmful to human life and the environment. The selective removal of these radionuclides in the presence of high salt concentrations from industrial nuclear waste is necessary for safe storage. Here we report the synthesis and crystal structure of K_2x Sn_4-x S_8-x (x = 0.65-1, KTS-3) a material which exhibits excellent Cs⁺, Sr²⁺ and UO₂²⁺ ion exchange properties in varying conditions. The compound adopts a layered structure which consists of exchangeable pota

SUBMITTER: Sarma D 

PROVIDER: S-EPMC5975790 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature