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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2020-01-01
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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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