The Structure Change and the Superhydrophilicity of the Sb-Doped Titanium Dioxide Thin Films

摘要

The TiO2:Sb nanoscale thin films were deposited on glass substrates by the sol-gel dip-coating method.The influence of the dopant density on the structure and the phase transformation of the thin films were investigated by X-ray diffraction (XRD) and Raman spectra.From the results of XRD,the thin films were in a maj ority of anatase state.The results of Raman spectra indicated that the non-doped TiO_2 thin film composed of not only anatase but also brookite phase.Dopant Sb enhances the transformation of the TiO_2 from brookite to anatase phase.After doping proper amount of Sb,the thin films show more Superhydrophilicity than the non-doped TiO_2 thin film as well.The crystal size of the TiO_2:Sb is about 13.3-20 nm calculated from the XRD patterns.