Перегляд за Автор "Sosenkin, Valentin Evseevich"

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  • Ескіз
    Документ
    Organic-inorganic ion-exchanger containing zirconium hydrophosphate for removal of UO2+/2 cations from water
    (2016) Dzyazko, Yuliya Serhiivna; Perlova, Natalya O.; Perlova, Olha V.; Volfkovich, Yurii Myronovich; Trachevskii, Vladimir Vasylevych; Sosenkin, Valentin Evseevich; Palchik, Alexey V.; Sazonova, Valentyna F.; Перлова, Ольга Вікторівна; Перлова, Ольга Викторовна; Сазонова, Валентина Федорівна; Сазонова, Валентина Федоровна
    Organic-inorganic materials based on gel-like strongly acidic resin containing zirconium hydrophosphate have been synthesized. The synthesis method allows us to control purposefully composition of the inorganic constituent as well as a size of incorporated particles (up to 0.2–1 mm), which consist of nanoparticles (10–20 nm). Fractal analysis of SEM and TEM images of the composites gives fractal dimension of the aggregates of ≈2.5. Thus, the DLA model can be applied to the particle formation indicating diffusion of the nanoparticles as a rate-determining stage of zirconium hydrophosphate precipitation inside the polymer.
  • Ескіз
    Документ
    Polymer ion-exchanger modified with zirconium hydrophosphate for removal of uranium (VI) from water
    (2016) Dzyazko, Yuliya Serhiivna; Perlova, Natalya O.; Volfkovich, Yurii Myronovich; Perlova, Olha V.; Palchik, Alexey V.; Sosenkin, Valentin Evseevich; Sazonova, Valentyna F.; Перлова, Ольга Вікторівна; Перлова, Ольга Викторовна; Сазонова, Валентина Федорівна; Сазонова, Валентина Федоровна
    Significant uranium content in water sources is due to the ingress of mine water, wastes of nuclear power plants, mining and mineral processing plants. The content of this element in water is strictly limited (0.015 mg dm-3 or less) due to its toxicity. Adsorption and ion exchange are the most suitable methods to reduce U(VI) content in water down to required level. Organicinorganic resins containing zirconium hydrophosphate (ZHP) were proposed for removal of toxic ions from water [1, 2]. The purpose of this work is to establish the interrelation between structure of the ZHP-containing composites and sorption of U(VI) ions. Another tasks are to ascertain a possibility to remove U(VI) compounds from water and to use the ion-exchangers many times. Method of standard contact porosimetry [3, 4] was applied to investigations.