Effect of Mesoporous Silica Buffer Layer on the Orientation of MFI Zeolite Membranes |
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| Authors: | Fa-Zhi Zhang Masayoshi Fuji Minoru Takahashi |
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| Affiliation: | Ceramics Research Laboratory, Nagoya Institute of Technology, Tajimi, Gifu 507-0071, Japan |
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| Abstract: | Growth of MFI zeolite membranes on porous α-alumina substrates with and without precoated mesoporous silica buffer layer has been performed by in situ crystallization. A preferentially b -oriented MFI membrane can be prepared on a mesoporous silica-coated substrate. A membrane with a randomly oriented and eventually h 0 h ]-oriented top layer is obtained on an uncoated α-alumina substrate. The chemical properties of the substrate are suggested to have significant effects on the membrane orientation. |
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