Graphene oxide membranes on ceramic hollow fibers - Microstructural stability and nanofiltration performance
Graphene oxide membranes on ceramic hollow fibers - Microstructural stability and nanofiltration performance
Graphene oxide (GO) membranes have demonstrated great potential in liquid filtration. With the aim of real applications, GO membranes in a hollow fiber shape are of particular interest because of the high-efficiency and easy-assembly features at the module level. We report here that GO membranes on ceramic hollow fiber substrates are unstable at the dry state, mainly due to the drying-related shrinkage. And we demonstrate that these GO hollow fiber membranes can be stabilized by keeping them wet after initial controlled formation of the membranes. The GO hollow fiber membranes show higher permeation fluxes of acetone and methanol than most commercial membranes, and reject molecules larger than 300. Da, showing a great potential in the use of value-added organic solvent nanofiltration processes.
Graphene oxide, Hollow fiber, Membrane, Nanofiltration, Stability
87-94
Aba, Nor Farah Diana
881d6211-e9ae-4075-8a8f-8dd6bbe38e49
Chong, Jeng Yi
2f9ead94-86f2-4e20-9e67-75f10759555b
Wang, Bo
55cee5a5-fd5f-4109-bc4d-06ee5e49e99f
Mattevi, Cecilia
58086c8a-9a2e-4ce7-b478-b7c8d22d5feb
Li, K.
91130dac-871e-4c5f-8441-07a8c5523d21
5 June 2015
Aba, Nor Farah Diana
881d6211-e9ae-4075-8a8f-8dd6bbe38e49
Chong, Jeng Yi
2f9ead94-86f2-4e20-9e67-75f10759555b
Wang, Bo
55cee5a5-fd5f-4109-bc4d-06ee5e49e99f
Mattevi, Cecilia
58086c8a-9a2e-4ce7-b478-b7c8d22d5feb
Li, K.
91130dac-871e-4c5f-8441-07a8c5523d21
Aba, Nor Farah Diana, Chong, Jeng Yi, Wang, Bo, Mattevi, Cecilia and Li, K.
(2015)
Graphene oxide membranes on ceramic hollow fibers - Microstructural stability and nanofiltration performance.
Journal of Membrane Science, 484, .
(doi:10.1016/j.memsci.2015.03.001).
Abstract
Graphene oxide (GO) membranes have demonstrated great potential in liquid filtration. With the aim of real applications, GO membranes in a hollow fiber shape are of particular interest because of the high-efficiency and easy-assembly features at the module level. We report here that GO membranes on ceramic hollow fiber substrates are unstable at the dry state, mainly due to the drying-related shrinkage. And we demonstrate that these GO hollow fiber membranes can be stabilized by keeping them wet after initial controlled formation of the membranes. The GO hollow fiber membranes show higher permeation fluxes of acetone and methanol than most commercial membranes, and reject molecules larger than 300. Da, showing a great potential in the use of value-added organic solvent nanofiltration processes.
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Published date: 5 June 2015
Additional Information:
Funding Information:
We thank the support from EPSRC ( EP/K01658X/1 ), N.D. Aba thanks the support from the Public Service Department of Malaysia , B. Wang thanks the Marie Curie International Incoming Fellowships (Grant No. 627591 ). C.M. acknowledges the award of a Royal Society University Research Fellowship by the UK Royal Society and the EPSRC Grant EP/K016792/1.
Publisher Copyright:
© 2015 Elsevier B.V.
Keywords:
Graphene oxide, Hollow fiber, Membrane, Nanofiltration, Stability
Identifiers
Local EPrints ID: 486369
URI: http://eprints.soton.ac.uk/id/eprint/486369
ISSN: 0376-7388
PURE UUID: 435efdf7-eb0c-4800-98df-737b0c3ab558
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Date deposited: 18 Jan 2024 19:26
Last modified: 06 Jun 2024 02:20
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Contributors
Author:
Nor Farah Diana Aba
Author:
Jeng Yi Chong
Author:
Bo Wang
Author:
Cecilia Mattevi
Author:
K. Li
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