Abstract
The TiO2 and TiO2SiO2 xerogels were prepared by hydrolyzing tetrabutoxytitanium or its mixture with tetraethoxysilane. The synthesis was conducted in an acetic acidwater atmosphere under stationary conditions followed by calcinations. The final TiO2 and TiO2SiO2 xerogels represented 3D globular pore structure with a narrow globule size distribution. At hydrolysis of terabutoxytitanium, acetic acid vapors favored formation of TiO2 xerogel with a higher surface area compared to the material produced without acidic catalyst.