| 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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Cseri, Levente
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Tunable 2D Conjugated Porous Organic Polymer Films for Precise Molecular Nanofiltration and Optoelectronicscitations
- 2021Electrospun Adsorptive Nanofibrous Membranes from Ion Exchange Polymers to Snare Textile Dyes from Wastewatercitations
- 2021Electrospun Adsorptive Nanofibrous Membranes from Ion Exchange Polymers to Snare Textile Dyes from Wastewatercitations
- 2020Metal–Organic Frameworks (MOFs) and MOF-Derived Porous Carbon Materials for Sustainable Adsorptive Wastewater Treatment
- 2020Asymmetric Membrane Capacitive Deionization using Anion-Exchange Membranes based on Quaternized Polymer Blendscitations
- 2020Asymmetric Membrane Capacitive Deionization using Anion-Exchange Membranes based on Quaternized Polymer Blendscitations
- 2020Graphene–PSS/L-DOPA nanocomposite cation exchange membranes for electrodialysis desalinationcitations
- 2020Graphene–PSS/L-DOPA nanocomposite cation exchange membranes for electrodialysis desalinationcitations
- 2019Electrostatically-coupled graphene oxide nanocomposite cation exchange membranecitations
- 2019Electrostatically-coupled graphene oxide nanocomposite cation exchange membranecitations
- 2018Robust Covalently Crosslinked Polybenzimidazole/Graphene Oxide Membranes for High-Flux Organic Solvent Nanofiltrationcitations
- 2018Graphene oxide – polybenzimidazolium nanocomposite anion exchange membranes for electrodialysiscitations
- 2018Graphene oxide – polybenzimidazolium nanocomposite anion exchange membranes for electrodialysiscitations
- 2018Robust Covalently Cross-linked Polybenzimidazole/Graphene Oxide Membranes for High-Flux Organic Solvent Nanofiltrationcitations
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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.