TY - JOUR
T1 - Mixed-matrix hollow fiber composite membranes comprising of PEBA and MOF for pervaporation separation of ethanol/water mixtures
AU - Liu, Quan
AU - Li, Yukai
AU - Li, Qianqian
AU - Liu, Guozhen
AU - Liu, Gongping
AU - Jin, Wanqin
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - 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/m 2 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.
AB - 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/m 2 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.
KW - Ceramic hollow fiber
KW - Ethanol recovery
KW - MAF-6
KW - Mixed-matrix membranes
KW - PEBA
KW - Pervaporation
UR - http://www.scopus.com/inward/record.url?scp=85041569273&partnerID=8YFLogxK
U2 - 10.1016/j.seppur.2018.01.050
DO - 10.1016/j.seppur.2018.01.050
M3 - 文章
AN - SCOPUS:85041569273
SN - 1383-5866
SP - 2
EP - 10
JO - Separation and Purification Technology
JF - Separation and Purification Technology
ER -
