Journal article
Synthesis and characterization of sodalite–polyimide nanocomposite membranes
Microporous and Mesoporous Materials, Vol.126(1-2), pp.14-19
2009
Abstract
Nanocomposite membranes are fabricated from sodalite nanocrystals (Sod-N) dispersed in BTDA-MDA polyimide matrices and then characterized structurally and for gas separation. No voids are found upon investigation of the interfacial contact between the inorganic and organic phases, even at a Sod-N loading of up to 35 wt.%. This is due to the functionalization of the zeolite nanocrystals with amino groups (double bond; length as m-dashSisingle bond(CH3)(CH2)3NH2), which covalently link the particles to the polyimide chains in the matrices. The addition of Sod-N increases the hydrogen-gas permeability of the membranes, while nitrogen permeability decreases. Overall, these nanocomposite membranes display substantial selectivity improvements. The sodalite–polyimide membrane containing 35 wt.% Sod-N has a hydrogen permeability of 8.0 Barrers and a H2/N2 ideal selectivity of 281 at 25 °C whereas the plain polyimide membrane exhibits a hydrogen permeability of 7.0 Barrers and a H2/N2 ideal selectivity of 198 at the same testing temperature.
Details
- Title
- Synthesis and characterization of sodalite–polyimide nanocomposite membranes
- Authors/Creators
- D. Li (Author/Creator)H.Y. Zhu (Author/Creator)K.R. Ratinac (Author/Creator)S.P. Ringer (Author/Creator)H. Wang (Author/Creator)
- Publication Details
- Microporous and Mesoporous Materials, Vol.126(1-2), pp.14-19
- Publisher
- Elsevier
- Identifiers
- 991005540571507891
- Copyright
- © 2009 Elsevier Inc.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Collaboration types
- Domestic collaboration
- Citation topics
- 2 Chemistry
- 2.241 Membrane Science
- 2.241.1037 Membrane Gas Separation
- Web Of Science research areas
- Chemistry, Applied
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- ESI research areas
- Materials Science