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Исследование физико-химических и хроматографических свойств сорбентов, модифицированных ацетилацетонатами и бензоилацетонатами РЗЭ О. А. Селезнева, Ж. В. Фаустова, А. А. Федорова

By: Селезнева, Ольга АндреевнаContributor(s): Фаустова, Жанна Владимировна | Федорова, Анастасия АндреевнаMaterial type: ArticleArticleOther title: Investigation of physicochemical and chromatographic properties of sorbents, modified REE’s acetylacetonate and benzoylacetonate [Parallel title]Subject(s): сорбенты | модифицирование | термогравиметрия | ИК-спектроскопия | пористые структуры | хроматографическая полярность | экспериментальные данные | ацетилацетонаты | лантаноиды | редкоземельные элементыGenre/Form: статьи в сборниках Online resources: Click here to access online In: Перспективы развития фундаментальных наук. Т. 2 : сборник научных трудов XV Международной конференции студентов, аспирантов и молодых ученых, 24–27 апреля 2018 г Т. 2 : Химия. С. 291-293Abstract: The compositions and structure of REE’s acetylacetonate and benzoylacetonate were studied. Mesoporous sorbents with applied layers of these complexes were synthesized, their surface and chromatographic polarity were investigated in comparison with the original Chromaton N-AW+Si02- It is established that the surface modification by these complexes leads to a decrease in the specific surface with a small change in the average size and volume of pores. The General increase in the polarity of modified sorbents in comparison with the initial one is noted. It is found that acetylacetonates exhibit greater polarity, the greatest value among all presented complexes belongs to acetylacetonate Yb(III).
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The compositions and structure of REE’s acetylacetonate and benzoylacetonate were studied. Mesoporous sorbents with applied layers of these complexes were synthesized, their surface and chromatographic polarity were investigated in comparison with the original Chromaton N-AW+Si02- It is established that the surface modification by these complexes leads to a decrease in the specific surface with a small change in the average size and volume of pores. The General increase in the polarity of modified sorbents in comparison with the initial one is noted. It is found that acetylacetonates exhibit greater polarity, the greatest value among all presented complexes belongs to acetylacetonate Yb(III).

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