Preparation of mesoporous N-doped TiO2 via solvent evaporation induced assembly

Mesoporous, nitrogen-doped TiO₂ (TiO_2-xN_x) nano-crystal is potentially technologically important materials due to its developed porosity and visible-light responsive performance. These are important parameters for photocatalysis and dye sensitized solar cells (DSSCs) with regard to adsorption and conversion of solar energy efficiency. We have recently developed an effective solvent evaporation induced assembly (SEISA) procedure for the preparation of mesoporous TiO_2-xN_x Tnano-anatases. The wormlike mesoporous nanocrystal TiO_2-xN_x has been prepared using SEISA method and compared with that synthesized via sol-gel methods. The SEISA method has many advantages over widely-used sol-gel method with regard to porosity and surface area. Also, the SEISA method is less water sensitive than traditional methods which makes it more effective for the fabrications of photocatalysts and DSSC devices.