溶胶-凝胶法制备层状Ti/Si复合材料的研究

Preparation of Lamellar Ti/Si Composite Materials by Sol-Gel Method

在水热体系下，通过溶胶一凝胶法，以阳离子表面活性剂十六烷基三甲基溴化铵作为模板剂，正硅酸乙酯作为硅源，三氯化钛作为钛源，制备出Ti／Si复合材料。样品的结构和形貌采用X射线衍射、扫描电子显微镜和透射电子显微镜进行表征，结果表明，所得样品呈现10nm左右的层状形貌，同时具有相对规则的微孔结构，为其在催化氧化方面提供了有利条件，也为实验教材中Ti／Si复合材料的制备奠定了理论基础。

This paper introduced the preparation of high ordered lamellar Ti/Si composite materials by sol-gel method using cationic surfactant CTAB as template, TEOS as silicon source, and TiCl3 as titanium source in hydrothermal system. The structure and morphology of the samples were characterized by X-ray diffraction, scanning electron microscopy and transmission elec tron microscopy. The results showed that the products possessed high ordered microporous structure and homogeneous lamellar morphology with a dimension of around 10 nm, which provides favorable condition for its catalytic oxidation and establishes the theoretical foundation for the preparation of Ti/Si composite materials in the experiment teaching materials.