Cesium and strontium ion exchange on the framework titanium silicate M2Ti2O3SiO4.nH2O (M = H, Na).
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.
Solbrå
S
S
School of Pharmacy and Biomolecular Sciences, University of Brighton, Lewes Road, Brighton BN2 4GJ, U.K.
Allison
N
N
Waite
S
S
Mikhalovsky
S V
SV
Bortun
A I
AI
Bortun
L N
LN
Clearfield
A
A
D002586:Cesium / Q000737:chemistry*; D004785:Environmental Pollutants / Q000032:analysis; D004787:Environmental Pollution / Q000517:prevention & control; D007474:Ion Exchange; D017640:Silicates / Q000737:chemistry*; D013324:Strontium / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*
D004785:Environmental Pollutants; D017640:Silicates; C103828:titanium silicide; D002586:Cesium; D014025:Titanium; D013324:Strontium