| 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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Coelhoso, Isabel M.
Universidade Nova de Lisboa
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Polymer–nano-ZnO composites for food packaging
- 2022Strategies to Improve the Barrier and Mechanical Properties of Pectin Films for Food Packaging: Comparing Nanocomposites with Bilayerscitations
- 2022Purification of ferulic acid from corn fibre alkaline extracts for bio-vanillin production using an adsorption processcitations
- 2021Modelling CO2 absorption in aqueous solutions of cholinium lysinate ionic liquidcitations
- 2021Block copolymer-based magnetic mixed matrix membranes-effect of magnetic field on protein permeation and membrane foulingcitations
- 2021Article block copolymer-based magnetic mixed matrix membranes-effect of magnetic field on protein permeation and membrane foulingcitations
- 2019Physical and morphological characterization of chitosan/montmorillonite films incorporated with ginger essential oilcitations
- 2018Hydrogel Composite Membranes Incorporating Iron Oxide Nanoparticles as Topographical Designers for Controlled Heteronucleation of Proteinscitations
- 2017Nano-structured magneto-responsive membranes from block copolymers and iron oxide nanoparticlescitations
- 2017A non-invasive optical method for mapping temperature polarization in direct contact membrane distillationcitations
- 2016Assessment of the adhesive properties of the bacterial polysaccharide FucoPolcitations
Places of action
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article
A non-invasive optical method for mapping temperature polarization in direct contact membrane distillation
Abstract
Membrane Distillation (MD) is a thermal membrane process allowing for a theoretical 100% rejection of non-volatile compounds (i.e. ions, macromolecules, colloids, cells), whereas vapour molecules permeate through a micro-porous hydrophobic membrane due to a difference of vapour pressure established across the membrane-self. The effective driving force and, then, the vapour trans-membrane flux is affected by temperature polarization phenomena occurring in the boundary layers adjacent to the membrane. The temperature values at the membrane surface are usually difficult to measure and only recently some invasive techniques were adopted for this scope. ; The aim of this work was to introduce luminescent molecular probing as an innovative technology for non-invasive and in-situ monitoring of thermal polarization in MD. Tris(phenantroline)ruthenium(II) chloride (Ru(phen)3) was selected as temperature sensitive luminescent probe and immobilized in a flat poly(vinylidene fluoride) electrospun nanofibrous membrane (PVDF ENM). Experiments showed the key role of the Ru(phen)3 and Lithium Chloride (LiCl) in the preparation of homogeneous PVDF ENM due to their ionic nature that improved the electrical conductivity of the polymeric solution favouring the electrospinning. Furthermore, PVDF ENM showed a good performance in Direct Contact Membrane Distillation (DCMD) process. The immobilization of the molecular probe allowed to optically monitoring the membrane surface temperature during DCMD experiments. On the other hand, the employment of an IR-camera permitted the evaluation of the temperature of the bulk of liquid streams. Therefore, the combination of these two optical techniques enabled to evaluate, in a direct and non-invasive way, the thermal polarization along the membrane module during DCMD experiments. ; Sergio Santoro would like to thank The Education, Audiovisual and Culture Executive Agency (EACEA) for the PhD grant under the Program “Erasmus Mundus Doctorate in Membrane Engineering” – EUDIME ...