| 초록 |
Photocatalytic decomposition of water has been studied by using TiO2-SiO2 mixed oxide. The characteristics and photocatalytic activity of TiO2-SiO2 was initially determined in which the compensation of structural characteristics of gel-derived TiO2-SiO2 was found to favor photocatalytic decomposition of water. One-stage, two-stage and modified two-stage synthesis route were used to prepare catalysts. It was indicated that not only hydrolysis route but also the mixing sequence of metal alkoxides and hydrolysant played a crucial role in determining the activity of gel-derived TiO2-SiO2 mixed oxides. The characteristics of gel-derived TiO2-SiO2 catalysts were studied by using BET, X-ray diffraction and FT-IR. |
