Enhanced acidity and hydro thermal stability of mesoporous aluminosilicate with secondary building units characteristic of zeolite Beta

摘要

Ordered hexagonal mesoporous aluminosilicate (SBU-MCM-41) with secondary building units characteristic of zeolite Beta has been characterized and compared with the corresponding MCM-41 by means of XRD, SEM, N_2 adsorption, IR spectra of pyridine, catalytic cracking activity and hydrothermal treatment. The results indicate that the introduction of secondary building units characteristic of zeolite Beta into the mesopore wall is an effective route to improve the acidity and hydrothermal stability of mesoporous material.