Mesoporous materials with the primary structure units of zeolite in the pore wall have been synthesized by a two-step crystallization process at 140 ℃ and characterized by XRD, N_2 physical adsorption/desorption, TEM, IR and NH_3-TPD methods. The effects of crystallization time, alkalinity, temperature and NH_4~+ ion exchange on the synthesized products were investigated. The results demonstrated that the synthesized samples (AlMB41) were similar to AlMCM-41 in the long-range structure and did not contain zeolite phases. The samples exhibited high thermal stability. H-type AlMB41s have stronger acid sites and higher catalytic activity for cumene cracking and alkylation of 2, 4-tert-butylphenol with tert- butylalcohol than traditional AlMCM-41.

Key words: ZEOLITE, XRD, NITROGEN, ADSORPTION, TEM, CATALYTIC ACTIVITY, ISOPROPYLBENZENE, PYROLYSIS