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Article

Exploring the Effect of Iron Metal-Organic Framework Particles in Polylactic Acid Membranes for the Azeotropic Separation of Organic/Organic Mixtures by Pervaporation

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Laboratory of Water Membrane and Environmental Biotechnology (LMBE), CERTE BP 273, 8020 Soliman, Tunisia
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Department of Chemistry, University of Tunis El-Manar, Farhat Hached University Campus, BP n° 94 Rommana, 1068 Tunis, Tunisia
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Institute on Membrane Technology, ITM-CNR, Via P. Bucci 17/c, 87036 Arcavacata di Rende (CS), Italy
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Chemical and Geological Science Department, Unità di Ricerca del Consorzio Nazionale di Scienze e Tecnologie dei Materiali (INSTM), University of Cagliari, SS 554 Bivio Sestu, 09042 Monserrato (CA), Italy
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Tecnologico de Monterrey, Campus Toluca, Avenida Eduardo Monroy Cárdenas 2000, San Antonio Buenavista, Toluca de Lerdo 50110, Mexico
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Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
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Division of Chemistry, Nuclear Research Center-Negev, P.O. Box 9001, Be’er-Sheva 8419001, Israel
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Unit of Environmental Engineering, Ben-Gurion University of the Negev, Be’er-Sheva 8410501, Israel
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NANOMISENE Laboratory, LR16CRMN01, Centre for Research on Microelectronics and Nanotechnology (CRMN) of Technopole of Sousse B. P334, 4054 Sahloul Sousse, Tunisia
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Authors to whom correspondence should be addressed.
Membranes 2021, 11(1), 65; https://doi.org/10.3390/membranes11010065
Received: 24 December 2020 / Revised: 13 January 2021 / Accepted: 15 January 2021 / Published: 18 January 2021
A microporous carboxylate metal-organic framework MIL-100 Fe was prepared as submicron particles by microwave-assisted hydrothermal synthesis (Fe-MOF-MW). This product was explored, for the first time, for the preparation of polylactic acid (PLA) mixed matrix membranes. The produced MOF was characterised by powder X-ray diffraction (PXRD), environmental scanning electron microscopy (ESEM) as well as by thermogravimetric analysis (TGA) and nitrogen adsorption/desorption. The effect of different Fe-MOF-MW concentrations (0.1 and 0.5 wt%) on the membrane properties and performance were evaluated. These membranes were used in the pervaporation process for the separation of methanol/methyl tert-butyl-ether mixtures at the azeotropic point. The influence of the feed temperature and vacuum pressure on the membrane performance was evaluated and the results were compared with PLA pristine membranes. Moreover, the produced membranes have been characterised in terms of morphology, MOF dispersion in the polymeric membrane matrix, wettability, thickness, mechanical resistance and swelling propensity. The presence of Fe-MOF-MW was found to have a beneficial effect in improving the selectivity of mixed matrix membranes towards methanol at both concentrations. The highest selectivity was obtained for the PLA membranes embedded with 0.5 wt% of Fe-MOF-MW and tested at the temperature of 25 °C and vacuum pressure of 0.09 mbar. View Full-Text
Keywords: pervaporation; polylactic acid (PLA); iron metal organic-framework; MOF; methanol; methyl tert-butyl ether (MTBE); organic-organic separation pervaporation; polylactic acid (PLA); iron metal organic-framework; MOF; methanol; methyl tert-butyl ether (MTBE); organic-organic separation
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MDPI and ACS Style

Msahel, A.; Galiano, F.; Pilloni, M.; Russo, F.; Hafiane, A.; Castro-Muñoz, R.; Kumar, V.B.; Gedanken, A.; Ennas, G.; Porat, Z.; Scano, A.; Hamouda, S.B.; Figoli, A. Exploring the Effect of Iron Metal-Organic Framework Particles in Polylactic Acid Membranes for the Azeotropic Separation of Organic/Organic Mixtures by Pervaporation. Membranes 2021, 11, 65. https://doi.org/10.3390/membranes11010065

AMA Style

Msahel A, Galiano F, Pilloni M, Russo F, Hafiane A, Castro-Muñoz R, Kumar VB, Gedanken A, Ennas G, Porat Z, Scano A, Hamouda SB, Figoli A. Exploring the Effect of Iron Metal-Organic Framework Particles in Polylactic Acid Membranes for the Azeotropic Separation of Organic/Organic Mixtures by Pervaporation. Membranes. 2021; 11(1):65. https://doi.org/10.3390/membranes11010065

Chicago/Turabian Style

Msahel, Asma, Francesco Galiano, Martina Pilloni, Francesca Russo, Amor Hafiane, Roberto Castro-Muñoz, Vijay B. Kumar, Aharon Gedanken, Guido Ennas, Ze’ev Porat, Alessandra Scano, Sofiane B. Hamouda, and Alberto Figoli. 2021. "Exploring the Effect of Iron Metal-Organic Framework Particles in Polylactic Acid Membranes for the Azeotropic Separation of Organic/Organic Mixtures by Pervaporation" Membranes 11, no. 1: 65. https://doi.org/10.3390/membranes11010065

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