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Zeolite-Polymer Composite Materials as Water Scavenger

The influence of the charge compensating cation nature (Na(+), Mg(2+)) on the water adsorption properties of LTA-type zeolites used as filler in composite materials (zeolite/polymers) was investigated. Large scale cation exchanges were performed on zeolite powder at 80 °C for 2 h using 1 M magnesium...

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Autores principales: Tahraoui, Zakaria, Nouali, Habiba, Marichal, Claire, Forler, Patrice, Klein, Julien, Daou, T. Jean
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8398656/
https://www.ncbi.nlm.nih.gov/pubmed/34443403
http://dx.doi.org/10.3390/molecules26164815
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author Tahraoui, Zakaria
Nouali, Habiba
Marichal, Claire
Forler, Patrice
Klein, Julien
Daou, T. Jean
author_facet Tahraoui, Zakaria
Nouali, Habiba
Marichal, Claire
Forler, Patrice
Klein, Julien
Daou, T. Jean
author_sort Tahraoui, Zakaria
collection PubMed
description The influence of the charge compensating cation nature (Na(+), Mg(2+)) on the water adsorption properties of LTA-type zeolites used as filler in composite materials (zeolite/polymers) was investigated. Large scale cation exchanges were performed on zeolite powder at 80 °C for 2 h using 1 M magnesium chloride (MgCl(2)) aqueous solutions. XRF, ICP, and EDX analyses indicate a successful cationic exchange process without the modification of the zeolite structure as shown by XRD and solid-state NMR analyses. Composite materials (granulates and molded parts) were manufactured using to extrusion and injection processes. In the case of MgA zeolite, nitrogen adsorption–desorption experiments allowed us to measure a microporous volume, unlike NaA zeolite, which is non-porous to nitrogen probe molecule. SEM and EDX analyses highlighted the homogeneous distribution of zeolite crystals into the polymer matrix. Water adsorption capacities confirmed that the trends observed in the zeolite powder samples are preserved after dragging zeolites into composite formulations. Granulates and molded parts composite samples containing the magnesium exchanged zeolite showed an increase of their water adsorption capacity up to +27% in comparison to composite samples containing the non-exchanged zeolite. The MgA composite is more promising for water decontamination applications due to its higher water adsorption properties than the NaA composite.
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spelling pubmed-83986562021-08-29 Zeolite-Polymer Composite Materials as Water Scavenger Tahraoui, Zakaria Nouali, Habiba Marichal, Claire Forler, Patrice Klein, Julien Daou, T. Jean Molecules Article The influence of the charge compensating cation nature (Na(+), Mg(2+)) on the water adsorption properties of LTA-type zeolites used as filler in composite materials (zeolite/polymers) was investigated. Large scale cation exchanges were performed on zeolite powder at 80 °C for 2 h using 1 M magnesium chloride (MgCl(2)) aqueous solutions. XRF, ICP, and EDX analyses indicate a successful cationic exchange process without the modification of the zeolite structure as shown by XRD and solid-state NMR analyses. Composite materials (granulates and molded parts) were manufactured using to extrusion and injection processes. In the case of MgA zeolite, nitrogen adsorption–desorption experiments allowed us to measure a microporous volume, unlike NaA zeolite, which is non-porous to nitrogen probe molecule. SEM and EDX analyses highlighted the homogeneous distribution of zeolite crystals into the polymer matrix. Water adsorption capacities confirmed that the trends observed in the zeolite powder samples are preserved after dragging zeolites into composite formulations. Granulates and molded parts composite samples containing the magnesium exchanged zeolite showed an increase of their water adsorption capacity up to +27% in comparison to composite samples containing the non-exchanged zeolite. The MgA composite is more promising for water decontamination applications due to its higher water adsorption properties than the NaA composite. MDPI 2021-08-09 /pmc/articles/PMC8398656/ /pubmed/34443403 http://dx.doi.org/10.3390/molecules26164815 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tahraoui, Zakaria
Nouali, Habiba
Marichal, Claire
Forler, Patrice
Klein, Julien
Daou, T. Jean
Zeolite-Polymer Composite Materials as Water Scavenger
title Zeolite-Polymer Composite Materials as Water Scavenger
title_full Zeolite-Polymer Composite Materials as Water Scavenger
title_fullStr Zeolite-Polymer Composite Materials as Water Scavenger
title_full_unstemmed Zeolite-Polymer Composite Materials as Water Scavenger
title_short Zeolite-Polymer Composite Materials as Water Scavenger
title_sort zeolite-polymer composite materials as water scavenger
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8398656/
https://www.ncbi.nlm.nih.gov/pubmed/34443403
http://dx.doi.org/10.3390/molecules26164815
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