The modified research on mesoporous material MCM-41

Using Cetyltrimethyl ammonium bromide(CTAB) as the template,tetraethyl orthosilicate(TEOS) as the source of silicon,the hexagonal ordered mesoporous materials MCM-41 was prepared at room temperature.The MCM-41 was chemical modified by TMB and APTES,and then the modified MCM-41 was acquired.The structure of the samples were characterized by X-ray Diffraction,Infrared spectroscopy and Nitrogen adsorption-desorption methods.The results indi-cated that the modified MCM-41 remains the hexagonal ordered mesoporous structure.The product gets a larger pore diam-eter than the pure MCM-41 when expanded by TMB,reduced the surface silanols by the silane modification,and incre-ased the surface polarity of MCM-41,then it is advantageous for the assembly of the mesoporous material MCM-41.