m Zendehdel - Department of chemistry, College of Science, Arak University, Arak, Iran
m Pouramini - Department of Chemistry, Shahid Beheshti University, Tehran, Iran
h Alikhani - Department of chemistry, College of Science, Arak University, Arak, Iran

A series of Clinoptilolite/NaY/MCM-41 composites were synthesized through a two-step crystallization process consisting of in situ crystallization of NaY on Clinoptiololite as a starting materials and the overgrowth of MCM-41 on the surface of Clinoptiololite/NaY composite. The composites synthesized were characterized by means of XRD, TGA, differential thermal analysis DTA and IR spectra.XRD analysis showed that the triple composite obtained in the present investigation possess the typical characteristics of well-ordered mesoporous MCM-41 and NaY zeolite .The results of DTA indicated that cetyltrimethylammoniumbromide attached on the NaY phase this composite can be used for intermolecular acylation

Clinoptilolite/NaY/MCM-41; Composite; Zeolite, Synthesis; Characterization