Study of effects of seeds on preparation of ZSM-5 membranes

被引：0

作者：

Li, Yongsheng ^{[1
]}

Wang, Jinqu ^{[1
]}

机构：

[1] Dalian Univ of Technology, Dalian, China

来源：

Dalian Ligong Daxue Xuebao/Journal of Dalian University of Technology | 2000年 / 40卷 / 05期

关键词：

Coatings - Crystallization - Membranes - Molecular sieves - Polishing;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

ZSM-5 membranes are successfully prepared on α-Al2O3 tubes coated with seeds by hydrothermal treatments. The seeds are introduced by direct polishing or dip-coating. It is found that the times of hydrothermal synthesis can be reduced. ZSM-5 membranes are prepared on supports featuring 0.6 μm pore diameter by only one synthesis step. Membranes are characterized by XRD, SEM and pure gas permeation measurements. The results show that they are dense and integral. The ideal selection factor of H2/C3H8 is up to 33, which shows the properties of molecular sieving of membranes.

引用

页码：546 / 549