The influence of silicic acid on the composition and properties of the material based on composite titanium phosphate
- 43 Downloads
The synthesis of composite titanium phosphate has been performed in one of the incisions of the TiO2-SiO2-H2SO4-H3PO4-H2O system with fixed amounts of H3PO4 and SiO2 with respect to TiO2. The composition of the precursors and the products of their thermolysis was determineded using IR spectroscopy, X-ray phase analysis, TGA analysis, and the BET method. It has been demonstrated that the concentration of titanium (IV) in the initial solution plays a crucial role during the formation of the structure and phase composition of the precipitates. The obtained data may provide a basis on which the directed synthesis of the product with the desired ion-exchange properties could be carried out.
Keywordstitanium phosphate sorbent silicic acid composite sorbent sorption
Unable to display preview. Download preview PDF.
- 1.Amphlett, C.B., Inorganic Ion-Exchangers, Amsterdam: Elsevier, 1964. Translated under the title Neorganicheskie ionity, Moscow: Mir, 1966.Google Scholar
- 2.Materova, E.A., Ion exchangers based on Group IV–VI elements of the Periodic Table, in Neorganicheskie ionoobmennye materialy (Inorganic Ion Exchange Materials), Nikol’skii, B.P., Ed., Leningrad: Leningrad State University, 1974, issue 1, pp. 56–65.Google Scholar
- 4.Gerasimova, L.G. and Maslova, M.V., Gidroksidy titana i kompozitsii na ikh osnove. Poluchenie i primenenie (Titanium Hydroxides and Related Composites: Production and Application), Moscow: LKM-Press, 2011.Google Scholar
- 7.Egorova, E.N., Metody vydeleniya kremnievoi kisloty i analiticheskogo opredeleniya kremnezema (Methods for Extraction of Silicic Acid and Analytical Determination of Silica), Moscow: Academy of Sciences of the Soviet Union, 1959.Google Scholar
- 9.Chernorukov, N.G., Korshunov, I.A., and Zhuk, M.I., On the titanium hydroxo-derivatives of the compositions Ti(OH)PO4 and Ti(OH)AsO4, Zh. Neorg. Khim., 1972, vol. 27, no. 12, pp. 3049–3052.Google Scholar
- 12.Greg, S.J. and Sing, K.S.W., Adsorption, Surface Area, and Porosity, London: Academic, 1967.Google Scholar