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Synthesis of SiO2-TiO2 binary composites with cellulose as the substrate

Research paper by A. B. Shishmakov, O. V. Koryakova, A. S. Seleznev, L. A. Petrov, S. A. Melkozerov

Indexed on: 11 Oct '13Published on: 11 Oct '13Published in: Russian Journal of Inorganic Chemistry



Abstract

A procedure for the synthesis of the SiO2-TiO2 binary material was developed. The procedure includes the formation of the silica matrix by impregnating cellulose plates with tetraethoxysilane followed by hydrolysis of the organometallic compound and burning-out of the cellulose constituent; activation of silica with HF; and deposition of titanium dioxide on the surface of the silica matrix by impregnating it with a solution of tetrabutoxytitanium, which is hydrolyzed in water-ammonia atmosphere. The physicochemical properties of the obtained material were studied.