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Sol-Gel Production and Properties of Spherical Biomaterials for the System TiO2–SiO2 /CaO

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The physicochemical properties of the carboxylic cationite Tokem-200 and the sulfo-cationite Tokem-140 as well as their Ca2+-ion selectivity under equilibrium conditions were investigated and Tokem-200 based biomaterials of spherical form were synthesized from solutions by the sol-gel method. The material frame is represented by TiO2–SiO2; the inner part is filled with the oxide Ca2+ (sample TiO2–SiO2 /CaO). Unlike Tokem-140, the carboxylic cationite Tokem-200 possesses the highest Ca2+-ion selectivity, which makes it promising for the development of biomaterials. The solutions were found to remain suitable for up to 5 days for obtaining materials. To obtain a homogeneous material stepped heat-treatment is required (after drying at 60°C) at 150, 250, and 350°C (30 min at each step) and at 600°C for 6 h. Additional post-drying immersion of the samples into phosphoric acid does not favorably affect the properties of the material.

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This work was performed as part of the state task No. 10.2281.2017_PCh.

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Authors and Affiliations

  1. National Research Tomsk State University, Tomsk, Russia

    L. P. Borilo, V. V. Kozik, E. S. Lyutova, V. V. Zharkova & A. S. Brichkov

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  1. L. P. Borilo
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  2. V. V. Kozik
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  3. E. S. Lyutova
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  4. V. V. Zharkova
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  5. A. S. Brichkov
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Correspondence to E. S. Lyutova.

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Translated from Steklo i Keramika, No. 8, pp. 44 – 50, August, 2019.

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Borilo, L.P., Kozik, V.V., Lyutova, E.S. et al. Sol-Gel Production and Properties of Spherical Biomaterials for the System TiO2–SiO2 /CaO. Glass Ceram 76, 315–320 (2019). https://doi.org/10.1007/s10717-019-00191-6

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  • DOI: https://doi.org/10.1007/s10717-019-00191-6

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