Abstract—
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.
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This work was supported by the Russian Science Foundation, research project no. 17-19-01522-P.
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Korneikov, R.I., Ivanenko, V.I. & Petrov, A.M. Extraction of Antimony(III) Ions from Solutions by Sorbents Based on Titanium(IV) Compounds. Inorg Mater 57, 524–528 (2021). https://doi.org/10.1134/S0020168521050046
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DOI: https://doi.org/10.1134/S0020168521050046