کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4989361 | 1455977 | 2017 | 11 صفحه PDF | دانلود رایگان |
- A tubular CAU-1 membrane was fabricated by in-situ solvothermal growth.
- The CAU-1 membrane exhibited a high CO2 permeance and selectivity for CO2/N2 mixtures.
- Solvent ratio and reactant content largely affected performance of CAU-1 membranes.
Facile synthesis of a thin tubular CAU-1 membrane was carried by simple in-situ solvothermal growth method through the use of the asymmetric α-Al2O3 tube support with the same metal centre as the CAU-1 framework. The solvent ratio, reactant concentration and support property were found significant for the formation of a dense and continuous pure CAU-1 membrane with highly permeable and selective CO2 towards N2 and CH4. A high CO2 permeance of 0.80Ã10â6 mol mâ2 sâ1 Paâ1 with separation factor of 14.8 was achieved for the M3 for 1:1 CO2/N2 binary mixtures at room temperature. Both the increase of ethanol in the solvent mixture and reactant concentration were favourable for the formation of a dense and well intergrown pure CAU-1 membrane while their excessive increase led to impure NH2-MIL-53 formation. The composition and pore size of the support contributed to high permeance and selectivity of CAU-1 membrane for CO2/N2 separation.
Journal: Journal of Membrane Science - Volume 522, 15 January 2017, Pages 140-150