ZHANG Jinsheng ^1,2, GUAN Kaishu ¹, TAN Xunyan ¹, LI Jia ^1,3, LIU Yingcha ^1,6, YIN Yansheng ¹, MENG Fanqin ⁴, LIU Lei ⁵

（1.Sangdong University; 2.Jinan Building Materials Institute; 3.Jinan University; 4.JiamusiUniversity; 5.Jiamusi University; 6.Jinan No.2Building Engineering Head Company）

Abstract: Ti－gel is prepared by means of sol－gel method. The Ti－gel is coated on the surfaces of glass and ceramics plate‚then dried and sintered. Finally‚nanometer TiO₂ film is formed. t has water/oil loving function‚disinfect and self－clean function‚ and fog－proof function. The conclusion different from previous literatures is appeared in the study. The hydrophilicity of the coating increases with the thickness increase of coating among the samples of1to7coating layers. There is no limited value to be found. Under the conditions of 650－750℃ sintering temperature and repeatedly coating and constant temperature sintering‚ there is no significant discovery of rutile phase. It is considered that the thickness increase of the coatings should not decrease the efficiency of photo－catalysis of nanometer TiO₂ film. The main factors affecting the photo－catalysis of nanometer TiO₂ film are the surface density and crystal grain size of TiO₂ film nanometer particles. The phase transformation temperature of nanometer anatase to rutile is not constant. Provided suitable conditions‚nanometer anatase can be stable under higher temperature. The main factors affecting phase transformation of nanometer anatase to rutile in the film are the specific technique conditions‚the characteristic of base plate materials‚and the mutual action between base material and TiO₂ film.

Keywords: nanometer TiO₂‚glass‚film‚photo－catalysis‚anatase‚phase tranformation‚hydrophilicity