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Open AccessArticle

Adsorption of Uranium (VI) from Aqueous Solutions by Amino-functionalized Clay Minerals

National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 37 Peremogy Av., 03056 Kyiv, Ukraine
Institute for Sorption and Problems of Endoecology, National Academy of Science of Ukraine, 13 General Naumov Str., 03164 Kyiv, Ukraine
Authors to whom correspondence should be addressed.
Colloids Interfaces 2019, 3(1), 41;
Received: 22 December 2018 / Revised: 20 March 2019 / Accepted: 22 March 2019 / Published: 23 March 2019
Silylation of clay minerals from Cherkasy deposit (Ukraine) montmorillonite (layer silicate) and palygorskite (fibrous silicate) was performed using organosilane (3-aminopropyl)triethoxysilane (APTES). Solvents with different polarity (ethanol, toluene) were used in synthesis. The structure of modified minerals was characterized by complex of methods (X-ray powder diffraction, Fourier transform infrared spectroscopy, nitrogen adsorption-desorption at −196 °C and thermal analysis). Studies of adsorption characteristics of APTES-modified clay minerals were carried out in relation to uranium (VI). The results indicated that modified montmorillonite and palygorskite were effective materials for water purification from UO22+. View Full-Text
Keywords: (3-aminopropyl)triethoxysilane; silylation; clay minerals; adsorption; uranium (3-aminopropyl)triethoxysilane; silylation; clay minerals; adsorption; uranium
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Tobilko, V.; Spasonova, L.; Kovalchuk, I.; Kornilovych, B.; Kholodko, Y. Adsorption of Uranium (VI) from Aqueous Solutions by Amino-functionalized Clay Minerals. Colloids Interfaces 2019, 3, 41.

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