Abstract
The preparation procedure of silica–titania composite oxide using novel solution/sol single precursor containing titanium peroxocomplex and silicic acid has been described. Pechini-type sol–gel process has been used to prepare oxides from the aqueous precursor. Some structural, morphological and textural characteristics of the prepared material have been presented. Composite SiO2/TiO2 has high surface area (c.a. 300 m2/g), and it is composed of anatase nanoparticles with the mean diameter of 5 nm embedded in amorphous silica, then TiO2 prepared via similar method is presented as a mixture of anatase and rutile phases. The proposed synthetic procedure meets the requirements of “green chemistry”.
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Acknowledgments
The study is carried out within the Federal Goal-oriented Program “Scientific and scientific pedagogical personnel of innovative Russia” for 2009–2013, Gov. contract No. 14.132.21.1449, and a grant of Russian Ministry of Education No. 01201255647. Oviedo University team thanks the financial support from FEDER and MINECO (MAT2010-15094). For the thoughtful remarks made on the study and a fruitful discussion the authors express their gratitude to Svetlana Gryn’ from Kiev Institute of Physical Chemistry and Sergey Alekseev from Kiev Taras Shevchenko National University.
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Krivtsov, I.V., Ilkaeva, M.V., Samokhina, V.D. et al. Synthesis of silica–titania composite oxide via “green” aqueous peroxo-route. J Sol-Gel Sci Technol 67, 665–669 (2013). https://doi.org/10.1007/s10971-013-3097-3
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DOI: https://doi.org/10.1007/s10971-013-3097-3