Abstract
The effect exerted on the selectivity of hydrated TiO2 to Sr by surface modification of the sorbent involving immobilization of mixed nickel potassium ferrocyanide was studied. The Sr specificity of the resulting sorbent (denoted as T-55) is comparable with that of hydrated TiO2: logK d (K d is Sr distribution coefficient, ml g−1) is 2.7 ± 0.2 in sorption from tap water with pH 7.8 ± 0.2, 2.7 ± 0.5 in sorption from CaCl2 solutions with pH 5.6 ± 0.2, and from 2.5 ± 0.8 to 1.7 ± 0.4 in sorption from CaCl2 solutions with pH 7.0 ± 0.2. The modification makes the resulting T-55 sorbent selective to Sr in the presence of Ca at pH 5–6.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Voronina, A.V., Semenishchev, V.S., and Betenekov, N.D., Vopr. Radiats. Bezopasn., 2010, no. 3, pp. 54–61.
Voronina, A.V., Semenishchev, V.S., Nogovitsyna, E.V., and Betenekov, N.D., Radiokhimiya, 2012, vol. 54, no. 1, pp. 66–70.
Schwarzenbach, G. and Flaschka, H., Die komplexometrische Titration, Stuttgart: Enke, 1965.
Denisova, T.A., Doctoral (Chem.) Dissertation, Yekaterinburg: Inst. of Solid State Chemistry, Ural Branch, Russian Acad. Sci., 2009.
Sharygin, L.M., Malykh, T.G., Dorofeev, Yu.A., and Tret’yakov, S.Ya., Adsorbts. Adsorb. (Kiev), 1983, no. 11, pp. 44–48.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.V. Voronina, V.S. Semenishchev, 2013, published in Radiokhimiya, 2013, Vol. 55, No. 1, pp. 61–64.
Rights and permissions
About this article
Cite this article
Voronina, A.V., Semenishchev, V.S. Effect of surface modification of hydrated titanium dioxide on its selectivity to strontium. Radiochemistry 55, 94–97 (2013). https://doi.org/10.1134/S1066362213010189
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1066362213010189