Application of glass-ceramics containing TiO_2 nanocrystals for transparent photocatalytic material

制备了含纳米TiO_2微晶玻璃。通过控制高折射率TiO_2的析出尺寸，获得了高透明的微晶玻璃。在透明TiO_2微晶玻璃中观察到亚稳相的形成，这表明玻璃的化学组成与析出的晶相之间存在相关性。另一方面，我们研究了通过脉冲激光照射或化学处理的表面结构变化。这些结果表明，本发明的TiO_2微晶玻璃可以作为透明光催化材料的候选者。

Transparent glass-ceramics with TiO_2 nanocrystallites have been fabricated. By controlling precipitated size of TiO_2 that possesses high refractive index, high transparency of the glass-ceramics was obtained. Preparation of metastable anatase was observed in transparent TiO_2 glass-ceramics, which indicates that there is a correlation between the chemical composition of glass and the precipitated crystalline phase. On the other hand, we examined surface structural change by pulsed laser irradiation or chemical treatment. These results have shown that the present TiO_2 glass-ceramic can be a candidate for transparent photocatalytic material.