000131887 001__ 131887
000131887 005__ 20241125101141.0
000131887 0247_ $$2doi$$a10.1016/j.mtsust.2023.100593
000131887 0248_ $$2sideral$$a137124
000131887 037__ $$aART-2023-137124
000131887 041__ $$aeng
000131887 100__ $$aPina-Vidal, Cristina$$uUniversidad de Zaragoza
000131887 245__ $$aSustainable ß- and ¿-cyclodextrins for development of highly permeable thin film composite nanofiltration membranes
000131887 260__ $$c2023
000131887 5060_ $$aAccess copy available to the general public$$fUnrestricted
000131887 5203_ $$aThe use of macromolecules, such as cyclodextrins (CDs), given their porosity and compatibility with organic materials, are very attractive for the progress of polymeric membranes in nanofiltration (NF) of aqueous dye solutions. Two types of membranes were fabricated. Firstly, β- and γ-CDs were incorporated to polyamide (PA) thin film composite (TFC) membranes. These membranes, named CD/MPD-TMC, were prepared by conventional interfacial polymerization —i.e., an aqueous solution of m-phenylenediamine (MPD) followed by a solution of trimesoyl chloride (TMC) in hexane— by replacing a certain amount of the MPD monomer with varying proportions of CDs. Secondly, two-step double-IP (TD-IP) membranes were fabricated as follows: CDs were deposited atop the polymer support, followed by addition of TMC —forming a polyester (PE) layer—, and subsequently the membrane surface was modified with MPD molecules. In both CD/MPD-TMC and TD-IP membranes, the presence of CDs improved the membrane performance, the latter configuration leading to much higher water permeances. The TD-IP membrane using β-CD achieved the highest water permeance of 10 L m−2 h−1·bar−1 (LMH bar−1) and a rejection of acridine orange dye (265 Da) greater than 98 %. This represents a 6-fold increase in water permeance compared to bare PA (1.6 LMH bar−1). The enhanced water transport was mainly attributed to the more hydrophilic nature of the membranes and the presence of a PE layer with a porous structure and high pore connectivity. High dye rejection resulted from electrostatic and Donnan repulsions due to surface modification with MPD molecules.
000131887 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FSE/T43-20R$$9info:eu-repo/grantAgreement/ES/DGA/T68-23R$$9info:eu-repo/grantAgreement/ES/FJC-2021-047822-I$$9info:eu-repo/grantAgreement/ES/MCIN-AEI/PID2019-104009RB-I00-AEI-10.13039-501100011033
000131887 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000131887 590__ $$a7.1$$b2023
000131887 592__ $$a1.244$$b2023
000131887 591__ $$aGREEN & SUSTAINABLE SCIENCE & TECHNOLOGY$$b21 / 91 = 0.231$$c2023$$dQ1$$eT1
000131887 593__ $$aChemistry (miscellaneous)$$c2023$$dQ1
000131887 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b87 / 439 = 0.198$$c2023$$dQ1$$eT1
000131887 593__ $$aRenewable Energy, Sustainability and the Environment$$c2023$$dQ1
000131887 593__ $$aMaterials Science (miscellaneous)$$c2023$$dQ1
000131887 594__ $$a5.8$$b2023
000131887 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000131887 700__ $$0(orcid)0000-0001-5002-7197$$aLuque-Alled, Jose Miguel$$uUniversidad de Zaragoza
000131887 700__ $$0(orcid)0000-0003-1512-4500$$aCoronas, Joaquín$$uUniversidad de Zaragoza
000131887 700__ $$0(orcid)0000-0002-4954-1188$$aTéllez, Carlos$$uUniversidad de Zaragoza
000131887 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000131887 773__ $$g24 (2023), 100593 [12 pp.]$$tMaterials Today Sustainability$$x2589-2347
000131887 8564_ $$s10228499$$uhttps://zaguan.unizar.es/record/131887/files/texto_completo.pdf$$yVersión publicada
000131887 8564_ $$s2685821$$uhttps://zaguan.unizar.es/record/131887/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000131887 909CO $$ooai:zaguan.unizar.es:131887$$particulos$$pdriver
000131887 951__ $$a2024-11-22-12:02:31
000131887 980__ $$aARTICLE