Synthesis and Characterization of Mesoporous MCM-41 Templated by the Mixture of Cationic-Anionic Surfactant

摘要

Using the mixture of cationic cetyltrimethylammonium bromide (CTAB) and anionic Sodium Alkyl Epoxy Ethylene Carboxylate (AEC_9Na) as template,tetraethyl orthosilicate (TEOS) as silica source,ethylenediamine (EDA) as base source,mesoporous MCM-41 has been synthesized at room temperature,characterized by X-ray power diffraction(XRD) and N_2 adsorption.The results showed that with the change of the ratio of cationic to anionic surfactant the pore size can be controlled and the mesoporous MCM-41 has larger pore size than that synthesized by using CTAB alone as template.