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Mixed-matrix hollow fiber composite membranes comprising of PEBA and MOF for pervaporation separation of ethanol/water mixtures
| Content Provider | Semantic Scholar |
|---|---|
| Author | Liu, Quan Li, Yukai Li, Qianqian Liu, Guozhen Liu, Gongping Jin, Wanqin |
| Copyright Year | 2018 |
| Abstract | Abstract Pervaporation membrane technology plays an important role in production of renewable bio-fuels. To improve the separation performance of polymeric membranes, an effective approach is development of mixed-matrix membranes containing high-performing fillers such as metal–organic frameworks. Towards practical application, hollow fiber could be an ideal substrate for mixed-matrix composite membrane, while current fabrications of this kind of composite membrane are relative complicated and challenging. In this work, a novel ceramic hollow fiber supported mixed-matrix composite membrane made of RHO-[Zn(eim)2] (MAF-6, Heim = 2-ethylimidazole) nanoparticles and poly (ether-block-amide) (PEBA) was fabricated via a facile dip-coating approach. SEM, XRD, TGA, contact angle and swelling measurements, nano-scratch technique were employed to study the morphology, crystal structure, thermal stability, surface property and interfacial adhesion of the resulting MAF-6/PEBA mixed-matrix hollow fiber composite membranes, respectively. These membranes were applied for recovering ethanol from aqueous solution via pervaporation. The effects of MAF-6 loading, as well as operating conditions (e.g., temperature, feed concentration and long-term stability) on the PV performance were systematically investigated. The PV performance of PEBA membrane, both flux and separation factor, were remarkably enhanced by uniformly incorporating MAF-6 nanoparticles. Total flux of 4446 g/m2 h and separation factor of 5.6 (feed: 5 wt% ethanol/water, 60 °C) was achieved for the optimized MAF-6/PEBA mixed-matrix hollow fiber composite membrane, which shows great advantages over the reported PEBA-based membranes for ethanol/water separation. |
| Starting Page | 2 |
| Ending Page | 10 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.seppur.2018.01.050 |
| Volume Number | 214 |
| Alternate Webpage(s) | https://wqjin-group.com/wp-content/uploads/2012/11/10.1016@j.seppur.2018.01.050.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
