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- Title
A Highly Permeable Aligned Montmorillonite Mixed-Matrix Membrane for CO<sub>2</sub> Separation.
- Authors
Qiao, Zhihua; Zhao, Song; Wang, Jixiao; Wang, Shichang; Wang, Zhi; Guiver, Michael D.
- Abstract
Highly permeable montmorillonite layers bonded and aligned with the chain stretching orientation of polyvinylamineacid are immobilized onto a porous polysulfone substrate to fabricate aligned montmorillonite/polysulfone mixed-matrix membranes for CO2 separation. High-speed gas-transport channels are formed by the aligned interlayer gaps of the modified montmorillonite, through which CO2 transport primarily occurs. High CO2 permeance of about 800 GPU is achieved combined with a high mixed-gas selectivity for CO2 that is stable over a period of 600 h and independent of the water content in the feed.
- Subjects
MONTMORILLONITE; SEPARATION of gases; CARBON dioxide; SUBSTRATES (Materials science); MEMBRANE separation
- Publication
Angewandte Chemie, 2016, Vol 128, Issue 32, p9467
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201603211