| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Blanford, Christopher F.
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2019Graphene–aramid nanocomposite fibres via superacid co-processingcitations
- 2019A Method for Metal/Protein Stoichiometry Determination Using Thin-Film Energy Dispersive X-ray Fluorescence Spectroscopycitations
- 2019Nonwoven Membrane Supports from Renewable Resources: Bamboo Fiber Reinforced Poly(Lactic Acid) Compositescitations
- 2019Nonwoven Membrane Supports from Renewable Resources: Bamboo Fiber Reinforced Poly(Lactic Acid) Compositescitations
- 2018Robust Covalently Crosslinked Polybenzimidazole/Graphene Oxide Membranes for High-Flux Organic Solvent Nanofiltrationcitations
- 2018Robust Covalently Cross-linked Polybenzimidazole/Graphene Oxide Membranes for High-Flux Organic Solvent Nanofiltrationcitations
- 2011The control of shrinkage and thermal instability in SU-8 photoresists for holographic lithographycitations
- 2008In situ high-temperature electron microscopy of 3DOM cobalt, iron oxide, and nickelcitations
- 2006Determination of void arrangements in inverse opals by transmission electron microscopycitations
- 2006The pyrolytic graphite surface as an enzyme substrate: Microscopic and spectroscopic studiescitations
- 2004A method for determining void arrangements in inverse opalscitations
- 2000Preparation and structure of 3D ordered macroporous alloys by PMMA colloidal crystal templating
Places of action
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article
Robust Covalently Cross-linked Polybenzimidazole/Graphene Oxide Membranes for High-Flux Organic Solvent Nanofiltration
Abstract
Robust, readily scalable, high-flux graphene oxide (GO) mixed matrix composite membranes were developed for organic solvent nanofiltration. Hydroxylated polybenzimidazole was synthesized by N-benzylation of polybenzimidazole with 4-(chloromethyl)benzyl alcohol, which was confirmed by FTIR and NMR spectroscopy. Flat-sheet composite membranes comprising of polybenzimidazoles and 1 or 2 wt % GO were fabricated via conventional blade coating and phase inversion. Subsequently, GO was covalently anchored to the hydroxyl groups of the polymer using a diisocyanate cross-linking agent. The even distribution of GO in the membranes was mapped by visible-light microscopy. Hydroxylation and incorporation of GO in the polymer matrix increased the permeance up to 45.2 ± 1.6 L m<sup>–2</sup> h<sup>–1</sup> bar<sup>–1</sup> in acetone, nearly 5 times higher than the unmodified benchmark membrane. The enhancement in permeance from the addition of GO did not compromise the solute rejection. The composite membranes were found to be tight in seven organic solvents, having molecular weight cut-offs (MWCO) as low as 140 g mol<sup>–1</sup>. Permeance increased with increasing solvent polarity, while rejection of a 420 g mol<sup>–1</sup> pharmaceutical remained over 93%. The covalent anchoring resulted in robust composite membranes that maintained constant performance over 14 days in a continuous cross-flow configuration.