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采用溶胶 凝胶法,通过在制备过程中加入丙烯酸对纳米TiO2胶体颗粒进行表面修饰以及加入引发剂偶氮双异丁腈(AIBN)引发丙烯酸聚合,利用提拉法在载玻片表面制备了纳米TiO2薄膜;采用热分析仪考察了纳米TiO2胶体颗粒中有机物的热解行为,并用X射线衍射仪测定了经不同温度下焙烧后的纳米TiO2粉体的晶体结构;采用原子力显微镜和透射电子显微镜观察分析了薄膜的微观结构;在对不同制备条件下制备的纳米TiO2干胶进行红外光谱分析的基础上,初步考察了薄膜成膜机理 结果表明,所制备的TiO2薄膜经400℃烧结处理后形成连续、片状、由粒径为6-8nm的纳米TiO2组成的薄膜材料
The sol-gel method was used to prepare acrylic acid by adding acrylic acid to the surface of nanocrystalline TiO2 colloidal particles and initiating the polymerization of acrylic acid by adding azobisisobutyronitrile (AIBN) The thermal decomposition behavior of the nano-TiO2 colloidal particles was investigated by X-ray diffractometry. The crystal structure of the nano-TiO2 powder calcined at different temperatures was measured. The atomic force microscopy and transmission electron microscopy The microstructure of the films was analyzed. Based on the IR spectra of the prepared nanostructured TiO2 under different preparation conditions, the film formation mechanism was preliminarily investigated. The results show that the films prepared by sintering at 400 ℃ form a continuous , Flaky, by the particle size of 6-8nm nano-TiO2 film material