The preparation of meso-porous membranes from Tunisian clay

This study has focused on the development of porous materials from representative Tunisian clay. The first step was the characterization of the clay through powder X-ray diffraction (XRD), thermal analysis and evaluation of its plasticity. With this data, an extrusion paste was prepared, mixing the...

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Main Authors: Naoufel Kamoun, Fakher Jamoussi, Miguel A. Rodríguez
Format: Article
Language:English
Published: Elsevier 2020-01-01
Series:Boletín de la Sociedad Española de Cerámica y Vidrio
Online Access:http://www.sciencedirect.com/science/article/pii/S0366317519300457
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spelling doaj-63961f3c3af44160b2a913b1842b0e7e2020-11-25T03:31:04ZengElsevierBoletín de la Sociedad Española de Cerámica y Vidrio0366-31752020-01-015912530The preparation of meso-porous membranes from Tunisian clayNaoufel Kamoun0Fakher Jamoussi1Miguel A. Rodríguez2Georesources Laboratory, CERTE BP 273, 8020 Soliman, TunisiaGeoresources Laboratory, CERTE BP 273, 8020 Soliman, TunisiaInstituto de Cerámica y Vidrio (CSIC), 28049 Cantoblanco, Madrid, Spain; Corresponding author.This study has focused on the development of porous materials from representative Tunisian clay. The first step was the characterization of the clay through powder X-ray diffraction (XRD), thermal analysis and evaluation of its plasticity. With this data, an extrusion paste was prepared, mixing the clay with 26% water. This paste was extruded in the form of a tube and after a study of its thermal behavior; it was sintered at 850 °C for 2 h. The behavior of the prepared membranes was evaluated by measuring their porosity, permeability and mechanical strength mainly. The membranes thus obtained showed an acceptable porosity of about 36%, with a pore diameter of about 30 nm and mechanical strength of 12 MPa. Resumen: Este estudio se ha centrado en el desarrollo de materiales porosos a partir de arcillas representativas de Túnez. El primer paso consistió en la caracterización de la arcilla mediante difracción de rayos X (DRX), el análisis térmico y la evaluación de su plasticidad. Con estos datos, se preparó una pasta de extrusión, mezclando la arcilla con 26% de agua. Esta pasta se extruyó en forma de tubo y, tras un estudio de su comportamiento térmico, se consolidó a 850° C durante 2 hrs. El comportamiento de las membranas preparadas se evaluó midiendo su porosidad, permeabilidad y resistencia mecánica fundamentalmente. Las membranas obtenidas mediante este procedimiento mostraron una porosidad aceptable, de aproximadamente el 36%, con un diámetro de poro de aproximadamente 30 nm y una resistencia mecánica de 12 MPa. Keywords: Clay, Membranes, Mechanical properties, Porosity, Palabras clave: Arcilla, Membranas, Propiedades mecánicas, Porosidadhttp://www.sciencedirect.com/science/article/pii/S0366317519300457
collection DOAJ
language English
format Article
sources DOAJ
author Naoufel Kamoun
Fakher Jamoussi
Miguel A. Rodríguez
spellingShingle Naoufel Kamoun
Fakher Jamoussi
Miguel A. Rodríguez
The preparation of meso-porous membranes from Tunisian clay
Boletín de la Sociedad Española de Cerámica y Vidrio
author_facet Naoufel Kamoun
Fakher Jamoussi
Miguel A. Rodríguez
author_sort Naoufel Kamoun
title The preparation of meso-porous membranes from Tunisian clay
title_short The preparation of meso-porous membranes from Tunisian clay
title_full The preparation of meso-porous membranes from Tunisian clay
title_fullStr The preparation of meso-porous membranes from Tunisian clay
title_full_unstemmed The preparation of meso-porous membranes from Tunisian clay
title_sort preparation of meso-porous membranes from tunisian clay
publisher Elsevier
series Boletín de la Sociedad Española de Cerámica y Vidrio
issn 0366-3175
publishDate 2020-01-01
description This study has focused on the development of porous materials from representative Tunisian clay. The first step was the characterization of the clay through powder X-ray diffraction (XRD), thermal analysis and evaluation of its plasticity. With this data, an extrusion paste was prepared, mixing the clay with 26% water. This paste was extruded in the form of a tube and after a study of its thermal behavior; it was sintered at 850 °C for 2 h. The behavior of the prepared membranes was evaluated by measuring their porosity, permeability and mechanical strength mainly. The membranes thus obtained showed an acceptable porosity of about 36%, with a pore diameter of about 30 nm and mechanical strength of 12 MPa. Resumen: Este estudio se ha centrado en el desarrollo de materiales porosos a partir de arcillas representativas de Túnez. El primer paso consistió en la caracterización de la arcilla mediante difracción de rayos X (DRX), el análisis térmico y la evaluación de su plasticidad. Con estos datos, se preparó una pasta de extrusión, mezclando la arcilla con 26% de agua. Esta pasta se extruyó en forma de tubo y, tras un estudio de su comportamiento térmico, se consolidó a 850° C durante 2 hrs. El comportamiento de las membranas preparadas se evaluó midiendo su porosidad, permeabilidad y resistencia mecánica fundamentalmente. Las membranas obtenidas mediante este procedimiento mostraron una porosidad aceptable, de aproximadamente el 36%, con un diámetro de poro de aproximadamente 30 nm y una resistencia mecánica de 12 MPa. Keywords: Clay, Membranes, Mechanical properties, Porosity, Palabras clave: Arcilla, Membranas, Propiedades mecánicas, Porosidad
url http://www.sciencedirect.com/science/article/pii/S0366317519300457
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