模板法制备介孔TiO2的研究进展

Reserach development mesoporous titanium dioxide prepared by template method

介绍了采用软模板法和硬模板法制备介孔TiO 2的方法及其优缺点。软模板法和硬模板法制备介孔TiO 2的原理都是先将钛前驱体与模板进行组装,再通过焙烧等方式去除模板得到介孔结构。二者之间的区别在于所使用的模板不同,软模板容易得到,种类较多且方法简单,但不易控制介孔的结构;硬模板虽然种类较少,但胜在可以控制介孔的结构和性能。

In this paper,we introduced the methods for preparing mesoporous TiO 2 by soft template method and hard template method.And its advantages and disadvantages were summarized in detail.The mechanisms of the soft template method and hard template method are assembling titanium precursor with template firstly,and then removing the template by calcining at high temperature to obtain mesoporous structure.Template is the only difference between these two methods.Soft templates owing to a wide range of types are easy to be obtained and the method is simple,but it is difficult to control the structure of mesopores.On the contrary,the hard template’s type is limit,but it can control the structure and performance of mesopores.