Preparation of Monodispersed Nanometer Titanium Dioxide by the Complex from Titanium Tetrachloride

Monodispersed titanium dioxide nanoparticles were prepared by the hydrolysis of the titanium complex at 145℃ , the complex was obtained by the reaction of TiCL, with tri- ethanolamine. The crystalline phase and morphology of the nanoparticles were characterized by means of TEM and XRD techniques. The sizes of the particles can be regulated by changing pH values of the complex solution. The UV spectra of the complex solution were measured. The formation and hydrolysis of the complex were discussed.