Fabrication and properties of novel porous ceramic membrane supports from the (Sig) diatomite and alumina mixtures
In this paper, the manufacturing of macro-porous tubular ceramic supports for membranes is described. The novel supports are fabricated from natural diatomite and alumina raw materials using the extrusion method. The structure was analyzed by X-ray diffraction (XRD) and mercury porosimetry technique...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Boletín de la Sociedad Española de Cerámica y Vidrio |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0366317521000339 |
| _version_ | 1811233806120648704 |
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| author | Fayçal Aouadja Ferhat Bouzerara Cetin Meric Guvenc Mustafa M. Demir |
| author_facet | Fayçal Aouadja Ferhat Bouzerara Cetin Meric Guvenc Mustafa M. Demir |
| author_sort | Fayçal Aouadja |
| collection | DOAJ |
| description | In this paper, the manufacturing of macro-porous tubular ceramic supports for membranes is described. The novel supports are fabricated from natural diatomite and alumina raw materials using the extrusion method. The structure was analyzed by X-ray diffraction (XRD) and mercury porosimetry techniques; the presence of possible defects was investigated by scanning electron microscopy (SEM). The permeability has been measured from water flux in standard experiments. Experimental results show that the open porosity, the average pore size (APS), the pore size distribution, the strength, and the permeability of sintered supports, have been found to depend, mainly on the concentration of alumina (Al2O3) additive. Supports prepared with the addition of 10 wt.% of alumina and sintered at 1200 °C, can be considered as the most optimized; they have a porosity ratio of about 46%, an APS is around 7.7 μm, a flexural strength value of about 28 MPa, and water permeability of around 15 m3 h−1 m−2 bar−1. Such materials could be of great interest in the supports fabrication for membrane application, for instance, water filtration. Resumen: En este trabajo se describe la fabricación de soportes cerámicos tubulares macroporosos para membranas. Los nuevos soportes se fabrican a partir de materias primas de diatomita natural y alúmina mediante el método de extrusión. La estructura se analizó por medio de técnicas de difracción de rayos X (XRD) y porosimetría de mercurio; la presencia de posibles defectos se investigó mediante microscopía electrónica de barrido (SEM). La permeabilidad se ha medido a partir del flujo de agua en experimentos estándar. Los resultados experimentales muestran que se ha encontrado que la porosidad abierta, el tamaño medio de poro (APS), la distribución del tamaño de poro, la resistencia y la permeabilidad de los soportes sinterizados dependen, principalmente, de la concentración de aditivo de alúmina (Al2O3). Los soportes preparados con la adición de 10% en peso de alúmina y sinterizados a 1.200 °C, pueden considerarse como los más optimizados; tienen una relación de porosidad de alrededor del 46%, un APS es de alrededor de 7,7 μm, un valor de resistencia a la flexión de alrededor de 28 MPa y una permeabilidad al agua de alrededor de 15 m3.h-1.m-2. bar-1. Dichos materiales podrían ser de gran interés en la fabricación de soportes para la aplicación de membranas, por ejemplo, filtración de agua. |
| first_indexed | 2024-04-12T11:26:42Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 0366-3175 |
| language | English |
| last_indexed | 2024-04-12T11:26:42Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Boletín de la Sociedad Española de Cerámica y Vidrio |
| spelling | doaj.art-9d3ba0d63c2443e2a41a5362bbc6c07d2022-12-22T03:35:13ZengElsevierBoletín de la Sociedad Española de Cerámica y Vidrio0366-31752022-09-01615531540Fabrication and properties of novel porous ceramic membrane supports from the (Sig) diatomite and alumina mixturesFayçal Aouadja0Ferhat Bouzerara1Cetin Meric Guvenc2Mustafa M. Demir3Faculty of Exact Science and Informatics, Physics Department, Laboratory of Condensed Matter Physics and Nanomaterials, Jijel University, Jijel 18000, Algeria; Research Center in Industriel Technologies CRTI, P.O. Box 64, Cheraga Algiers, AlgeriaFaculty of Exact Science and Informatics, Physics Department, Laboratory of Condensed Matter Physics and Nanomaterials, Jijel University, Jijel 18000, Algeria; laboratoire d’Etudes des Matériaux, Jijel University, Jijel 18000, Algeria; Corresponding author.Department of Materials Science and Engineering, İzmir Institute of Technology, 35430 Gülbahçe, Urla, İzmir, TurkeyDepartment of Materials Science and Engineering, İzmir Institute of Technology, 35430 Gülbahçe, Urla, İzmir, TurkeyIn this paper, the manufacturing of macro-porous tubular ceramic supports for membranes is described. The novel supports are fabricated from natural diatomite and alumina raw materials using the extrusion method. The structure was analyzed by X-ray diffraction (XRD) and mercury porosimetry techniques; the presence of possible defects was investigated by scanning electron microscopy (SEM). The permeability has been measured from water flux in standard experiments. Experimental results show that the open porosity, the average pore size (APS), the pore size distribution, the strength, and the permeability of sintered supports, have been found to depend, mainly on the concentration of alumina (Al2O3) additive. Supports prepared with the addition of 10 wt.% of alumina and sintered at 1200 °C, can be considered as the most optimized; they have a porosity ratio of about 46%, an APS is around 7.7 μm, a flexural strength value of about 28 MPa, and water permeability of around 15 m3 h−1 m−2 bar−1. Such materials could be of great interest in the supports fabrication for membrane application, for instance, water filtration. Resumen: En este trabajo se describe la fabricación de soportes cerámicos tubulares macroporosos para membranas. Los nuevos soportes se fabrican a partir de materias primas de diatomita natural y alúmina mediante el método de extrusión. La estructura se analizó por medio de técnicas de difracción de rayos X (XRD) y porosimetría de mercurio; la presencia de posibles defectos se investigó mediante microscopía electrónica de barrido (SEM). La permeabilidad se ha medido a partir del flujo de agua en experimentos estándar. Los resultados experimentales muestran que se ha encontrado que la porosidad abierta, el tamaño medio de poro (APS), la distribución del tamaño de poro, la resistencia y la permeabilidad de los soportes sinterizados dependen, principalmente, de la concentración de aditivo de alúmina (Al2O3). Los soportes preparados con la adición de 10% en peso de alúmina y sinterizados a 1.200 °C, pueden considerarse como los más optimizados; tienen una relación de porosidad de alrededor del 46%, un APS es de alrededor de 7,7 μm, un valor de resistencia a la flexión de alrededor de 28 MPa y una permeabilidad al agua de alrededor de 15 m3.h-1.m-2. bar-1. Dichos materiales podrían ser de gran interés en la fabricación de soportes para la aplicación de membranas, por ejemplo, filtración de agua.http://www.sciencedirect.com/science/article/pii/S0366317521000339CerámicaSoportes de membranaPorosidadDiatomitaFuerza |
| spellingShingle | Fayçal Aouadja Ferhat Bouzerara Cetin Meric Guvenc Mustafa M. Demir Fabrication and properties of novel porous ceramic membrane supports from the (Sig) diatomite and alumina mixtures Boletín de la Sociedad Española de Cerámica y Vidrio Cerámica Soportes de membrana Porosidad Diatomita Fuerza |
| title | Fabrication and properties of novel porous ceramic membrane supports from the (Sig) diatomite and alumina mixtures |
| title_full | Fabrication and properties of novel porous ceramic membrane supports from the (Sig) diatomite and alumina mixtures |
| title_fullStr | Fabrication and properties of novel porous ceramic membrane supports from the (Sig) diatomite and alumina mixtures |
| title_full_unstemmed | Fabrication and properties of novel porous ceramic membrane supports from the (Sig) diatomite and alumina mixtures |
| title_short | Fabrication and properties of novel porous ceramic membrane supports from the (Sig) diatomite and alumina mixtures |
| title_sort | fabrication and properties of novel porous ceramic membrane supports from the sig diatomite and alumina mixtures |
| topic | Cerámica Soportes de membrana Porosidad Diatomita Fuerza |
| url | http://www.sciencedirect.com/science/article/pii/S0366317521000339 |
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