Abstract
Many types of TiO2-SiO2 (Ti:Si=50:50 mol%) were prepared by the sol-gel procedure with and without 2-methyl-2, 4-pentanediol (MPD) as an organic ligand. The effect of MPD on the gel structure and the properties of the TiO2 crystals were studied by XRD and raman spectroscopy, and the effect of the sol standing time on the properties of the TiO2 crystals were also studied by XRD spectroscopy. In the gels with MPD, anatase of TiO2 appeared at approximately 580°C, and the crystal structures were similar despite the difference in the gel preparation procedure. The titania gels with MPD were presumed to be dispersed in the silica gel matrix without any Ti-O-Si bond. In the presence of MPD, the formation of titania gels is controlled and the specified TiO2 crystal is produced.
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Nishide, T., Mizukami, F. & Yamaguchi, H. Structure of TiO2 in TiO2-SiO2 prepared by a complexing agent-assisted sol-gel procedure. Journal of Sol-Gel Science and Technology 1, 113–121 (1994). https://doi.org/10.1007/BF00490241
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DOI: https://doi.org/10.1007/BF00490241