Extraction of Antimony(III) Ions from Solutions by Sorbents Based on Titanium(IV) Compounds

— Sorbents based on titanium(IV) compounds have been shown to be potentially attractive for quantitative removal of antimony(III) anions from liquid radioactive waste with complex chemical composition. Evidence is presented that titanium(IV) oxyhydroxyphosphates have enhanced affinity for antimony(I...

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Bibliographic Details
Published in:Inorganic materials 2021-05, Vol.57 (5), p.524-528
Main Authors: Korneikov, R. I., Ivanenko, V. I., Petrov, A. M.
Format: Article
Language:English
Subjects:
Affinity
Antimony
Antimony compounds
Chemical composition
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Radioactive wastes
Selectivity
Sorbents
Titanium
Titanium compounds
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Summary:— Sorbents based on titanium(IV) compounds have been shown to be potentially attractive for quantitative removal of antimony(III) anions from liquid radioactive waste with complex chemical composition. Evidence is presented that titanium(IV) oxyhydroxyphosphates have enhanced affinity for antimony(III) cations. Selectivity of sorption matrices increases with increasing solution acidity and with an increase in the concentration of hydrogen phosphate groups in the composition of the material. Having enhanced affinity for negatively charged antimony(III) ions, titanium(IV) oxyhydroxides are potentially attractive for extraction of anionic species.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168521050046