EFFECT OF DIFFERENT SOLVENT ON ASYMMETRIC POLYSULFONE (PSF) MEMBRANES FOR CO2/CH4 SEPARATION
| Autor: | Norhaniza Yusof, Muhammad Hanis Tajuddin, N. F. A. Rozuki |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
lcsh:GE1-350
Materials science Gas separation Polysulfone 02 engineering and technology Permeation 021001 nanoscience & nanotechnology Solvent chemistry.chemical_compound Membrane Tetrahydrofuran 020401 chemical engineering Chemical engineering chemistry Volatile solvent 0204 chemical engineering Fourier transform infrared spectroscopy Phase inversion (chemistry) 0210 nano-technology lcsh:Environmental sciences |
| Zdroj: | Environment & Ecosystem Science, Vol 2, Iss 2, Pp 11-14 (2018) |
| ISSN: | 2521-0483 2521-0882 |
| Popis: | The asymmetric membranes solution were developed for CO2/CH4 separation by mixing polysulfone (PSf) with N-Methyl-2-pyrrolidone (NMP). A volatile solvent, Tetrahydrofuran (THF) was introduced into the casting solution by various loading (0 to 75%) to form a high gas separation performance of asymmetric membranes via dry/wet phase inversion method. The produced membranes were characterized using Scanning Electron Microscopic (SEM), Fourier Transform Infrared Spectroscopy (FTIR) and gas permeability test. SEM images of a membrane with NMP as a solvent has the thickest dense layer while a membrane with THF as a solvent has the thinnest thickness of the membrane. FTIR results indicating the present of sulfur dioxide (SO2) and methyl (CH3) group at wavelength 1170 cm-1 and 2969 cm-1 respectively verifying the use of PSf as a polymer. As for gas permeation test, the used of THF as a solvent shows the highest CO2/CH4 selectivity with the lowest permeability. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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