TY - JOUR
T1 - Bola-amphiphile-imidazole embedded GO membrane with enhanced solvent dehydration properties
AU - Mao, Yangyang
AU - Zhang, Mengchen
AU - Cheng, Long
AU - Yuan, Jianwei
AU - Liu, Gongping
AU - Huang, Libo
AU - Barboiu, Mihail
AU - Jin, Wanqin
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/2/1
Y1 - 2020/2/1
N2 - Inspired by fast and selective water transport in natural Aquaporin (AQP), imidazole-quartet water channels (IQWC) constructed by imidazole-ureido (IU) molecular scaffolds, are excellent candidates to design membranes with fast and selective water transport properties. In this work, a water binding IU bola-amphiphile-imidazole compound was embedded with the hydrophilic and laminated graphene oxide (GO) to prepare IU-GO membrane. H NMR, TG, XRD, SEM, AFM and FTIR were conducted to characterize physicochemical properties of IU and IU-GO membrane. It was demonstrated that IU could well interact with GO to generate a robust membrane structure. The resulting IU-GO membranes were applied for pervaporation dehydration of n-butanol-water. The total flux and the separation factor of the optimized IU-GO membrane were 3506 g·m-2·h-1 and 4454 respectively when the membrane was measured at 343 K with butanol content of 80 wt%. Furthermore, the membrane exhibited good stability and separation performance during 120 h continuous operation test, showing great potential in application of solvent dehydration.
AB - Inspired by fast and selective water transport in natural Aquaporin (AQP), imidazole-quartet water channels (IQWC) constructed by imidazole-ureido (IU) molecular scaffolds, are excellent candidates to design membranes with fast and selective water transport properties. In this work, a water binding IU bola-amphiphile-imidazole compound was embedded with the hydrophilic and laminated graphene oxide (GO) to prepare IU-GO membrane. H NMR, TG, XRD, SEM, AFM and FTIR were conducted to characterize physicochemical properties of IU and IU-GO membrane. It was demonstrated that IU could well interact with GO to generate a robust membrane structure. The resulting IU-GO membranes were applied for pervaporation dehydration of n-butanol-water. The total flux and the separation factor of the optimized IU-GO membrane were 3506 g·m-2·h-1 and 4454 respectively when the membrane was measured at 343 K with butanol content of 80 wt%. Furthermore, the membrane exhibited good stability and separation performance during 120 h continuous operation test, showing great potential in application of solvent dehydration.
KW - Graphene oxide membrane
KW - Imidazole-ureido
KW - Pervaporation
KW - Solvent dehydration
UR - http://www.scopus.com/inward/record.url?scp=85073195331&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2019.117545
DO - 10.1016/j.memsci.2019.117545
M3 - 文章
AN - SCOPUS:85073195331
SN - 0376-7388
VL - 595
JO - Journal of Membrane Science
JF - Journal of Membrane Science
M1 - 117545
ER -