Preparation of 3-Dimensional Ordered Macroporous Titanium Dioxide by the Liquid Phase Deposition Method
Yoshifumi AOI, Hisae KAMBAYASHI, Sayuri KOBAYASHI, Eiji KAMIJO and Shigehito DEKI
Abstract:Anatase TiO2 with three-dimensional ordered macroporous structure has been fabricated by the liquid phase deposition method using colloidal template formed by self-assembling of polystyrene latex spheres of 199 nm diameter as a substrate. The interstitial spaces of template were completely filled with TiO2 by the liquid phase deposition method. Heat treatment of the polystyrene - TiO2 composite film resulted in three-dimensional ordered macroporous TiO2. The obtained three-dimensional ordered macroporous TiO2 have sharp reflectance peak at 350 nm indicating that the sample exhibits the behavior of a photonic crystal. Key Words:Liquid phase deposition, Macroporous, Titanium dioxide, Photonic crystal, Colloidal template