000070194 001__ 70194
000070194 005__ 20190709135450.0
000070194 0247_ $$2doi$$a10.1016/j.memsci.2017.05.001
000070194 0248_ $$2sideral$$a98946
000070194 037__ $$aART-2017-98946
000070194 041__ $$aeng
000070194 100__ $$aSantoro, S.
000070194 245__ $$aA non-invasive optical method for mapping temperature polarization in direct contact membrane distillation
000070194 260__ $$c2017
000070194 5060_ $$aAccess copy available to the general public$$fUnrestricted
000070194 5203_ $$aMembrane 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.
000070194 536__ $$9info:eu-repo/grantAgreement/ES/DGA/B008-12
000070194 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000070194 590__ $$a6.578$$b2017
000070194 591__ $$aPOLYMER SCIENCE$$b3 / 87 = 0.034$$c2017$$dQ1$$eT1
000070194 591__ $$aENGINEERING, CHEMICAL$$b9 / 137 = 0.066$$c2017$$dQ1$$eT1
000070194 592__ $$a2.4$$b2017
000070194 593__ $$aBiochemistry$$c2017$$dQ1
000070194 593__ $$aPhysical and Theoretical Chemistry$$c2017$$dQ1
000070194 593__ $$aMaterials Science (miscellaneous)$$c2017$$dQ1
000070194 593__ $$aFiltration and Separation$$c2017$$dQ1
000070194 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000070194 700__ $$0(orcid)0000-0002-6336-7542$$aVidorreta, I. M.
000070194 700__ $$0(orcid)0000-0002-6873-5244$$aSebastian, V.$$uUniversidad de Zaragoza
000070194 700__ $$aMoro, A.
000070194 700__ $$aCoelhoso, I. M.
000070194 700__ $$aPortugal, C. A. M.
000070194 700__ $$aLima, J. C.
000070194 700__ $$aDesiderio, G.
000070194 700__ $$aLombardo, G.
000070194 700__ $$aDrioli, E.
000070194 700__ $$0(orcid)0000-0002-4758-9380$$aMallada, R.$$uUniversidad de Zaragoza
000070194 700__ $$aCrespo, J. G.
000070194 700__ $$aCriscuoli, A.
000070194 700__ $$aFigoli, A.
000070194 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000070194 773__ $$g536 (2017), 156-166$$pJ. membr. sci.$$tJOURNAL OF MEMBRANE SCIENCE$$x0376-7388
000070194 8564_ $$s1686441$$uhttps://zaguan.unizar.es/record/70194/files/texto_completo.pdf$$yPostprint
000070194 8564_ $$s83383$$uhttps://zaguan.unizar.es/record/70194/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000070194 909CO $$ooai:zaguan.unizar.es:70194$$particulos$$pdriver
000070194 951__ $$a2019-07-09-11:40:22
000070194 980__ $$aARTICLE