关键词: 介孔氧化硅;模板剂;煅烧法;萃取法

Abstract: Development of mesoporous materials, removing problem of template agent has not been solved.In order to better solve the problem of removing organ-template agent of mesoporous silica,it was proposed the method of calcination, extracting and combining calcination with extracting to remove organic template agent of mesoporous silica.The structural properties of the materials were analyzed by Transmission Electron Microscopy(TEM),Nitrogen adsorption/desorption the Fourier infrared and Thermogravimetry Analysis(TGA)characterization methods,etc.The results indicate that MSN-A(450℃calcination)of pore diameter(4.8 nm), pore volume(0.558 cm3· g-1)and the specific surface area(604.64 m2· g-1)is the biggest.The article processed systemic research for the several methods, getting result.The conclusions about how to quickly choose the method of removing template agent possess guiding significance.

Key words: mesoporous silica;template agent;calcination method;extraction method