Characterization of NaA Zeolite Oxygen Permeable Membrane on TiO2/α-Al2O3 Composite Support

MATEC Web of Conferences

Deng Cheng¹  Yuwen Linlin¹  Su Hongbo¹  Jiang Mingming¹  Zhu Mengfu¹ 

[1] Institute of Medical Equipment, Academy of Military Medical Sciences;

关键词: NaA zeolite;    zeolite membrane;    composite support;    crystal seed method;    oxygen permeation;   

DOI  :  10.1051/matecconf/20166706003

来源: DOAJ

【 摘 要 】

The NaA zeolite membrane was synthesized on the surface of TiO2/α-Al2O3 composite support with TiO2 as modifier of α-Al2O3 porous tubular ceramic membrane support by crystallization method. The structure characterization indicated that the TiO2 of the support surface could effectively improve the surface properties of the support. It didn’t affect the crystallization of NaA synthesis liquid and synthesis process of NaA zeolite membrane. There were no obvious defects between the crystal particles with size of approximate 6μm. The perfect and complete membrane with thickness of approximate 15μm combined closely with support to connection together by TiO2 modified. The oxygen permeability of the membrane on TiO2/α-Al2O3 composite support improves of 47% compared with that of α-Al2O3 support. So the process of TiO2 modifying the surface of α-Al2O3 support should increase the oxygen permeability of the NaA zeolite membrane.

【 授权许可】

Unknown