Synthesis and Characterization of NaX Molecular Sieve Zeolite Films on Ceramic Paper for Membranes

Abstract:

NaX molecular sieve films on ceramic paper prepared by in-situ hydrothermal method were investigated. The NaX zeolite seed crystals of a uniform size of 5 µm were synthesized by hydrothermal method in a mother solution having a composition of 3.5Na2O : Al2O3 : 2.1SiO2 : 500~1000 H2O. These dip-coated NaX seed crystal on ceramic paper lead to further the thickness (20 ~ 100 µm) of NaX film on the substrate at 90°C for longer 3~7 days in autoclave. Pure zeolite films consisting of a continuous intergrown of 5~ 20 µm NaX crystal have been prepared on the substrates. The zeolite films were characterized by XRD, SEM, BET and XRF.

• Periodical: Materials Science Forum (Volumes 492-493)
• Pages: 317-324
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.492-493.317
• Online since: August 2005
• Authors: Hae Jin Lee, Hyung Chul Kim, Ik Jin Kim
• Keywords: Ceramic Paper, Hydrothermal Method, Intergrowth, Membrane, NaX Zeolite, Zeolite Film

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