Preparation of Nanocrystal TiO_2 with Rutile Structure at Lower Temperature from TiOCl_2 Solution

Nanometer titania needle-shaped agglomeration was directly prepared by aging TiOCl2 aqueous solution from room temperature to 60°C. The effect of reaction temperature and stirring on TiO2 crystalline size and morphology were discussed. The results show the morphology of product is pseudo-sphere in the stirring condition. The aging temperatures have no effect on the morphology of product. The TiO2 particles were characterized by TEM and XRD. The result shows the product is nanometer titania needle-shaped agglomeration with rutile structure.