Preparation of 3-Dimensional Ordered Macroporous Titanium Dioxide by the Liquid Phase Deposition Method

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 199nm 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 350nm indicating that the sample exhibits the behavior of a photonic crystal.