Exploring the effect of iron metal-organic framework particles in polylactic acid membranes for the azeotropic separation of organic/organic mixtures by pervaporation

Asma Msahel; Francesco Galiano; Martina Pilloni; Francesca Russo; Amor Hafiane; Roberto Castro-Muñoz; Vijay Bhooshan Kumar; Aharon Gedanken; Guido Ennas; Ze’ev Porat; Alessandra Scano; Sofiane Ben Hamouda; Alberto Figoli

doi:10.3390/membranes11010065

Exploring the effect of iron metal-organic framework particles in polylactic acid membranes for the azeotropic separation of organic/organic mixtures by pervaporation

Asma Msahel, Francesco Galiano, Martina Pilloni, Francesca Russo, Amor Hafiane, Roberto Castro-Muñoz, Vijay Bhooshan Kumar, Aharon Gedanken, Guido Ennas, Ze’ev Porat, Alessandra Scano, Sofiane Ben Hamouda, Alberto Figoli

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

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.

Original language	English
Article number	65
Pages (from-to)	1-18
Number of pages	18
Journal	Membranes
Volume	11
Issue number	1
DOIs	https://doi.org/10.3390/membranes11010065
State	Published - Jan 2021

Bibliographical note

Funding Information:
The authors acknowledge Nicolas Godbert, from the Department of Chemistry and Chemical Technologies of the University of Calabria (Italy), for the performing the EDX measurements.

Publisher Copyright:
© 2021 by the authors.

Keywords

Iron metal organic-framework
MOF
Methanol
Methyl tert-butyl ether (MTBE)
Organic-organic separation
Pervaporation
Polylactic acid (PLA)

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10.3390/membranes11010065

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Msahel, A., Galiano, F., Pilloni, M., Russo, F., Hafiane, A., Castro-Muñoz, R., Kumar, V. B., Gedanken, A., Ennas, G., Porat, Z., Scano, A., Ben Hamouda, S., & Figoli, A. (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(1), 1-18. Article 65. https://doi.org/10.3390/membranes11010065

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abstract = "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.",

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Msahel, A, Galiano, F, Pilloni, M, Russo, F, Hafiane, A, Castro-Muñoz, R, Kumar, VB, Gedanken, A, Ennas, G, Porat, Z, Scano, A, Ben Hamouda, S & Figoli, A 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, vol. 11, no. 1, 65, pp. 1-18. https://doi.org/10.3390/membranes11010065

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T1 - Exploring the effect of iron metal-organic framework particles in polylactic acid membranes for the azeotropic separation of organic/organic mixtures by pervaporation

AU - Msahel, Asma

AU - Galiano, Francesco

AU - Pilloni, Martina

AU - Russo, Francesca

AU - Hafiane, Amor

AU - Castro-Muñoz, Roberto

AU - Kumar, Vijay Bhooshan

AU - Gedanken, Aharon

AU - Ennas, Guido

AU - Porat, Ze’ev

AU - Scano, Alessandra

AU - Ben Hamouda, Sofiane

AU - Figoli, Alberto

PY - 2021/1

Y1 - 2021/1

N2 - 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.

AB - 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.

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KW - MOF

KW - Methanol

KW - Methyl tert-butyl ether (MTBE)

KW - Organic-organic separation

KW - Pervaporation

KW - Polylactic acid (PLA)

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ER -

Exploring the effect of iron metal-organic framework particles in polylactic acid membranes for the azeotropic separation of organic/organic mixtures by pervaporation

Abstract

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Keywords

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