| 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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Lima, João Carlos
Altice Portugal (Portugal)
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Cryoprotective Polysaccharides with Ordered Gel Structures Induce Ice Growth Anticipation and Survival Enhancement during Cell Cryopreservationcitations
- 2020Application of polyoxometalate-ionic liquids (POM-ILs) in dye-sensitized solar cells (DSSCs)citations
- 2017A non-invasive optical method for mapping temperature polarization in direct contact membrane distillationcitations
- 2016Molecular Weight Determination by Luminescent Chemo–enzymaticscitations
- 2015Tuning the Surface Chemistry of Nanoporous Carbons for Enhanced Nanoconfined Photochemical Activitycitations
- 2013Photoinduced reactions occurring on activated carbons. A combined photooxidation and ESR studycitations
- 2008Study of the effect of the phosphane bridging chain nature on the structural and photophysical properties of a series of gold(I) ethynylpyridine complexescitations
- 2008Probing the microenvironment of sol-gel entrapped cutinase: the role of added zeolite NaYcitations
- 2006Metallodendrimers containing both ruthenium (internal layer) and rhenium (external layer)citations
- 2000Fluorescence-labeled pyrenesulfonamide response for characterizing polymeric interfaces in composite materialscitations
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 ...