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Information × Registration Number 0219U101796, 0117U004532 , R & D reports Title Application of sol-gel technology to create new sorbents and membranes with a complex surface layer popup.stage_title Head Tertykh Valentyn A., Доктор хімічних наук Registration Date 05-11-2019 Organization Chuiko Institute of Surface Chemistry of NAS of Ukraine popup.description2  Samples of mesoporous silica with different concentrations of phosphonic acid on the surface were obtained by direct template synthesis. The block copolymer P123 was used as a template, and sodium metasilicate with diethylphosphatoethyltriethoxysilane as precursors. According to the diffraction patterns, the samples of mesoporous silica have hexagonal symmetry p6mm. In addition, xerogel with similar groups synthesized by the sol-gel method was used for comparison. All samples have high values ​​of specific surface area of ​​615-730 m2 / g. IR spectroscopy and potentiometric titration methods were used to study the surface layer of these samples. The sorption properties of samples with phosphonic acid groups with respect to a number of metal cations (lead (II), cadmium (II) and dysprosium (III)) have been studied. Product Description popup.authors Dudarko Oksana A. Melnyk Innа V. Stolyarchuk Nataliya V. Tomina Veronika V. Tertykh Valentyn A. popup.nrat_date 2020-04-02 Close