Инд. авторы:	Palchik N.A., Razvorotneva L.I, Moroz T.N., Miroshnichenko L.V.
Заглавие:	Crystal-Chemical Features and Sorption Properties of Natural and Synthetic Smectites
Библ. ссылка:	Palchik N.A., Razvorotneva L.I, Moroz T.N., Miroshnichenko L.V. Crystal-Chemical Features and Sorption Properties of Natural and Synthetic Smectites // Russian Journal of Inorganic Chemistry. - 2019. - Vol.64. - Iss. 3. - P.308-316. - ISSN 0036-0236. - EISSN 1531-8613.
Внешние системы:	DOI: 10.1134/S003602361903015X; РИНЦ: 38682214; SCOPUS: 2-s2.0-85065227720; WoS: 000472437200005;
Реферат:	eng: Sorption of uranyl ions from uranyl nitrate UO 2 (NO 3 ) 2 · 6H 2 O solutions by natural and synthetic layered silicates was studied by X-ray diffraction, IR spectroscopy, and high-resolution inductively coupled plasma mass spectrometry. The modifications of some structural parameters of the studied species after they were reacted with uranyl ions are due to a partial incorporation of uranyls into the interlayer spaces of the smectite structure, or the rotation of the tetrahedra of a tetrahedral network and the distortion of octahedra in an octahedral layer. The natural bottom clay samples from the Pacific Ocean and the Sea of Okhotsk have the best sorption properties. This is due to structural defects and the formation of uranium complexes with the iron ions of the smectite structure. Iron present in clay minerals improves their sorption potentials. © 2019, Pleiades Publishing, Ltd.
Ключевые слова:	IR spectroscopy; sorption; structural defects; uranyl ion; X-ray diffraction; Defects; Electron spin resonance spectroscopy; Infrared spectroscopy; Mass spectrometry; Metal ions; Silicates; Spacecraft instruments; Uranium dioxide; X ray diffraction; Crystal-chemical features; Sorption; Uranyl ions; Structural parameter; Structural defect; Sorption properties; Partial incorporation; High resolution inductively coupled plasma mass spectrometries; EPR spectroscopy; Iron; EPR spectroscopy;
Издано:	2019
Физ. характеристика:	с.308-316