PET表面锐钛矿-板钛矿相TiO_2薄膜的制备及表征  

Preparation and Characterization of Anatase-Brookite TiO_2Film on the PET Surface

作　　者：周立君[1] 燕姗姗[1] 田宝柱[1] 陈锋[1] 张金龙[1] 黄家祯[2] 张利中[2] 

机构地区：[1]华东理工大学精细化工研究所 [2]华东理工大学分析测试中心,上海200237

出　　处：《物理化学学报》2006年第5期569-573,共5页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金(20577009);中国乐凯胶片集团;教育部新世纪优秀人才资助计划;上海市纳米发展与促进中心纳米专项(0452nm010)资助项目

摘　　要：利用改进的溶胶-凝胶法在经表面改性的PET(聚对苯二甲酸乙二醇酯)表面制备得到TiO2薄膜.利用X射线衍射(XRD)、原子力显微镜(AFM)、UV-Vis透光率曲线、接触角测试仪等测试手段对TiO2样品的性能进行表征.结果表明,PET表面过渡层的引入有效地改善了有机基底与无机薄膜之间的界面相容性,在其表面形成透明、均一、附着力良好且具有光催化活性的TiO2薄膜.通过控制实验过程,在低温下成功制备了不同锐钛矿/板钛矿比的TiO2薄膜,同时发现适量板钛矿相的存在能有效提高薄膜的光致亲水性.TiO2 thin films were prepared on modified PET（poly（ethylene terephthalate）） substrates by an improved sol-gel method. The as-prepared samples were characterized with X-ray diffraction （XRD）, atomic force microscopy （AFM）, and UV-Vis spectra. The results show that the interfacial compatibility between organic substrate and inorganic film has been improved after PET substrate was modified with silane coupling agent, and TiO2 films with transparency, uniformity, good adhesion, and high photocatalytic activity can be formed on PET surface. Moreover, the TiO2 thin films with different ratios of anatase/brookite were prepared successfully by controlling the preparation conditions, and the hydrophilicity of the TiO2 thin film was improved with proper content of brookite.

关 键 词：PET TIO2薄膜 附着力 锐钛矿-板钛矿 光致亲水性 

分 类 号：O614.411[理学—无机化学]