Preparation of ZSM-22 zeolite with hierarchical pore structure

摘要

ZSM-22 zeolite samples were synthesized with and without the use of trimethoxyphenylsilane in conjunction with nanometric silica beads, producing materials with intracrystalline micro-mesopore structures. Subsequently, the solids were desilicated by varying the NaOH solution concentration. The XRD results indicated that the samples were highly crystalline and the nitrogen adsorption analysis showed that the desilication of the materials with the presence of organosilane caused a greater increase of surface area, external area, mesoporous volume, and higher yields of solid. (C) 2018 Elsevier B.V. All rights reserved.