Oriented ZSM-5 Zeolite Membranes on Biomorphic SiSiC Ceramics for Microreactors

doi:10.3724/SP.J.1077.2009.00330

Abstract

Abstract: Oriented ZSM-5 zeolite membranes on the biomorphic porous SiSiC ceramics were successfully synthesized by in situ hydrothermal synthesis. The ZSM-5/ SiSiC composite materials were characterized by XRD, SEM-EDX and BET. The effects of synthesis time and surface pre-treatment of the beech-derived SiSiC monolith were systematically studied. It shows that a homogeneous coverage within the pores channel of SiSiC monolith by b-oriented ZSM-5 crystals with 1μm average size is formed after hydrothermal treatment at 150℃ for 15h. The structure composites exhibit a hierarchical pore structure with a BET specific surface area of 42.8m²/g and microporous volume of 0.015cm³/g. The weight percent of ZSM-5 in the final zeolite/SiSiC composites is about 8.6% after coating.

Key words: biomorphic ceramics, zeolite membrane, ZSM-5, in-situ hydrothermal synthesis

CLC Number:

TG146

LUO Min,WANG Zheng,WANG Yan,LIANG Jun,FANG Jun-Zhuo. Oriented ZSM-5 Zeolite Membranes on Biomorphic SiSiC Ceramics for Microreactors[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2009.00330.

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Oriented ZSM-5 Zeolite Membranes on Biomorphic SiSiC Ceramics for Microreactors

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