Adsorption of Cr(VI) by Nanosized Rutile under the Action of UV Radiation

N. V. Pechishcheva; Печищева Н. В.; D. P. Ordinartsev; Ординарцев Д. П.; A. A. Valeeva; Валеева А. А.; P. V. Zaitseva; Зайцева П. В.; A. D. Korobitsyna; Коробицына А. Д.; A. A. Sushnikova; Сушникова А. А.; A. V. Kim; Ким А. В.; K. Yu. Shunyaev; Шуняев К. Ю.; A. A. Rempel; Ремпель А. А.

doi:10.31857/S0044453723020206

Adsorption of Cr(VI) by Nanosized Rutile under the Action of UV Radiation

Authors: Pechishcheva N.V.¹, Ordinartsev D.P.¹, Valeeva A.A.²^,3, Zaitseva P.V.¹, Korobitsyna A.D.¹, Sushnikova A.A.¹^,3, Kim A.V.², Shunyaev K.Y.¹, Rempel A.A.¹^,3
Affiliations:
1. Institute of Metallurgy, Ural Branch, Russian Academy of Sciences
2. Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences
3. Ural Federal University named after the First President of Russia B. N. Yeltsin
Issue: Vol 97, No 2 (2023)
Pages: 279-284
Section: ФИЗИЧЕСКАЯ ХИМИЯ ДИСПЕРСНЫХ СИСТЕМ И ПОВЕРХНОСТНЫХ ЯВЛЕНИЙ
Submitted: 27.02.2025
Published: 01.02.2023
URL: https://freezetech.ru/0044-4537/article/view/668840
DOI: https://doi.org/10.31857/S0044453723020206
EDN: https://elibrary.ru/EJXZIO
ID: 668840

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Abstract

the properties of nanosized sorbents prepared by high-energy milling from microcrystalline powder of titanium dioxide of rutile modification have been studied. It was established that milling to an average crystallite size of ~30 nm and ultraviolet illumination significantly improved the sorption properties of rutile with respect to chromium compared with those of the starting material and the ability of Cr(VI) to be reduced to Cr(III) in its presence. The maximum removal of Cr(VI) from aqueous solutions with a concentration of 50 mg/L was achieved under UV illumination in an acetate buffer medium at pH 4–5 and a content of ground rutile of 16.7 g/L. A mechanism of adsorption was proposed.

Keywords

rutile, chromium(VI), ultraviolet, adsorption

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