Abstract
Composite membranes, consisting of a highly hydrophobic zeolite, silicalite-1, and PDMS polymer were prepared. Distinct gas permeation effects have been found for these membrane types. A new parameter, the facilitation ratio of zeolite, was introduced to characterize the function of silicalite in the membrane. Using this parameter it was confirmed that silicalite played an important role in the molecular transport and that the altered permeabilities and selectivities were a result of the molecular sieving effect of the silicalite.
Original language | English (US) |
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Pages (from-to) | 289-292 |
Number of pages | 4 |
Journal | Journal of Membrane Science |
Volume | 57 |
Issue number | 2-3 |
DOIs | |
State | Published - Apr 15 1991 |
Externally published | Yes |
Keywords
- composite membrane
- facilitated transport
- gas separations
- polydimethylsiloxane membrane
- zeolite
ASJC Scopus subject areas
- Biochemistry
- General Materials Science
- Physical and Theoretical Chemistry
- Filtration and Separation