Cesium and strontium ion exchange on the framework titanium silicate M2Ti2O3SiO4.nH2O (M = H, Na)

S Solbrå; N Allison; S Waite; S V Mikhalovsky; A I Bortun; L N Bortun; A Clearfield

doi:10.1021/es000136x

Cesium and strontium ion exchange on the framework titanium silicate M2Ti2O3SiO4.nH2O (M = H, Na)

Environ Sci Technol. 2001 Feb 1;35(3):626-9. doi: 10.1021/es000136x.

Authors

S Solbrå¹, N Allison, S Waite, S V Mikhalovsky, A I Bortun, L N Bortun, A Clearfield

Affiliation

¹ School of Pharmacy and Biomolecular Sciences, University of Brighton, Lewes Road, Brighton BN2 4GJ, U.K.

PMID: 11351739
DOI: 10.1021/es000136x

Abstract

The ion exchange properties of the titanium silicate, M2Ti2O3SiO4.nH2O (M = H, Na), toward stable and radioactive 137Cs+ and 89Sr2+, have been examined. By studying the cesium and strontium uptake in the presence of NaNO3, CaCl2, NaOH, and HNO3 (in the range of 0.01-6 M) the sodium titanium silicate was found to be an efficient Cs+ ion exchanger in acid, neutral, and alkaline media and an efficient Sr2+ ion exchanger in neutral and alkaline media, which makes it promising for treatment of contaminated environmental media and biological systems.

MeSH terms

Cesium / chemistry*
Environmental Pollutants / analysis
Environmental Pollution / prevention & control
Ion Exchange
Silicates / chemistry*
Strontium / chemistry*
Titanium / chemistry*

Substances

Environmental Pollutants
Silicates
titanium silicide
Cesium
Titanium
Strontium