| 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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Hélix-Nielsen, Claus
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2023Facile Fabrication of Flexible Ceramic Nanofibrous Membranes for Enzyme Immobilization and Transformation of Emerging Pollutantscitations
- 2023Facile Fabrication of Flexible Ceramic Nanofibrous Membranes for Enzyme Immobilization and Transformation of Emerging Pollutantscitations
- 2023Synthesis of magnetic nanoparticles with covalently bonded polyacrylic acid for use as forward osmosis draw agentscitations
- 2022Concentrating hexavalent chromium electroplating wastewater for recovery and reuse by forward osmosis using underground brine as draw solutioncitations
- 2021Employing the synergistic effect between aquaporin nanostructures and graphene oxide for enhanced separation performance of thin-film nanocomposite forward osmosis membranescitations
- 2021Impedance characterization of biocompatible hydrogel suitable for biomimetic lipid membrane applicationscitations
- 2021Impact of sodium hypochlorite on rejection of non-steroidal anti-inflammatory drugs by biomimetic forward osmosis membranescitations
- 2019Synthesis of Poly-Sodium-Acrylate (PSA)-Coated Magnetic Nanoparticles for Use in Forward Osmosis Draw Solutionscitations
- 2016Influence of feed composition and membrane fouling on forward osmosis performance
- 2015A reusable device for electrochemical applications of hydrogel supported black lipid membranescitations
- 2015A feasibility study of ultrafiltration/reverse osmosis (UF/RO)-based wastewater treatment and reuse in the metal finishing industrycitations
- 2012Tailoring Properties of Biocompatible PEG-DMA Hydrogels with UV Lightcitations
- 2011Surface Modifications of Support Partitions for Stabilizing Biomimetic Membrane Arrayscitations
- 2011Electrochemical characterization of hydrogels for biomimetic applicationscitations
Places of action
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article
Synthesis of magnetic nanoparticles with covalently bonded polyacrylic acid for use as forward osmosis draw agents
Abstract
Multicoated magnetite (Fe<sub>3</sub>O<sub>4</sub>) magnetic nanoparticles (MNPs) with polyacrylic acid (PAA) as a terminal hydrophilic ligand were synthesized and examined for use as a draw solution (DS) agent in forward osmosis (FO). After coating superparamagnetic iron-oxide MNPs with (3-aminopropyl)triethoxysilane (APTES) the carboxyl groups of PAA were bound to APTES amino groups via the crosslinker 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC) forming a peptide bond resulting in stable water-soluble particles (MNP@APTES@PAA) with a concentration-normalised osmotic pressure of 1.56 bar L g<sup>−1</sup>. The MNP@APTES@PAA solution was evaluated as a DS in two FO filtrations with deionized (DI) water as a feed solution (FS): one using freshly prepared MNP@APTES@PAA and one using magnetically recovered (re-concentrated) MNP@APTES@PAA. The resulting MNP@APTES@PAA nanocomposites exhibit good colloidal stability in aqueous solution with a concentration-normalized osmotic pressure of 1.56 bar L g<sup>−1</sup>. This is 12-fold higher than that in our previous studies of poly-sodium-acrylate coated MNPs and 3-fold higher than that of citric acid coated MNPs. The water recoveries of the two filtrations were 25.7% and 13.6%, respectively, after 2 h of FO filtration time resulting in a DS osmotic pressure of 2.5 bar with a concentration of 4.3 g L<sup>−1</sup> and a DS osmotic pressure of 2.6 with a concentration of 3.7 g L<sup>−1</sup> respectively.