Preparation Of Titanium Dioxide Nanocrystallite With High Photocatalytic Activities

Anatase nanocrystalline titanium dioxide (TiO2) with high photo catalytic activities was prepared by hydrothermal crystallisation with the addition of acetic acid. The presence of acetic acid could arrest the growth of the nanocrystallites during the hydrothermal processes and be propitious to form nanocrystallites with round edges and corners. This morphology of TiO2 had more active sites in the photo catalytic process and showed high photo catalytic activity in the degradation of the methylene blue in the aqueous solution.