The preparation of meso-porous membranes from Tunisian clay

Kamoun, Naoufel; Jamoussi, Fakher; Rodrı́guez, Miguel Á.

doi:10.1016/j.bsecv.2019.06.001

Cited by 10 publications

(2 citation statements)

References 19 publications

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“…The ceramics sintered from the clay-sand mixtures with C sand ≥ 60 wt% can be classified with foamed ceramics. Similar results on the low-temperature synthesis (850 o C for 2 h) of mesoporous ceramics were obtained in [47]. In the ceramics obtained from the binary clay-glass mixtures with C glass ˃ 50 wt%, (see Fig.…”

Section: Sem and Eds Resultssupporting

confidence: 82%

Low-temperature sintering of high-siliceous clay under conditions of oxygen deficiency

et al. 2021

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In the work, the processes of phase reconstruction and properties of ceramics obtained from high-siliceous clay-sand, clay-cullet, and clay-sand-cullet mixtures are considered. It is possible to perform plastic molding of blanks from the given mixtures due to the presence of montmorillonite in clay and sand and sintering at 800 oC for 8 h under conditions of oxygen deficiency. Depending on the composition of the initial mixtures, specimens ranging in color from gray to black can be obtained. It has been established by the XRD, IR spectroscopy, and electron microscopy methods that the synthesized material is glass ceramics consisting of quartz, feldspars, and a glass phase. Depending on the content of the initial components in the mixtures, it is possible to obtain glass ceramics with high strength properties or coarse-pored glass ceramics whose properties are similar to those of foamed ceramics.

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Section: Sem and Eds Resultssupporting

confidence: 82%

Low-temperature sintering of high-siliceous clay under conditions of oxygen deficiency

et al. 2021

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“…While samples C and D show unimodal distribution at 37.6 and 40.5 nm respectively. This type of adsorption/desorption isotherm and the pore size ranges show that the membranes produced are mesoporous which has pore sizes in the range 2-50 nm [25,26]. The BET-specific surface area of samples A, B, C and D show an increase with an increase in starch content with values of 15.92, 25.65, 41.54, 51.51 m 2 /g respectively.…”

Section: Bet Pore Size Analysismentioning

confidence: 80%

Preparation and Characterization of a Clay-Based Ceramic Membrane for Tannery Wastewater Treatment

Abubakar

Ahmad²

2023

ARASET

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In this work, a porous clay-based ceramic membrane was developed from locally sourced clay from Nigeria. The clay was ground and sieved through 100 μm size. The chemical, mineralogical, thermal and particle size properties of the clay were determined using XRF, XRD, TGA/DTA and PSD respectively. Starch composition from 10-25 wt% was added to the clay and thoroughly mixed with water. The dough was cast on a potter’s wheel. The produced membranes were fired at a temperature of 900 °C. The maturation properties of the fired clay were determined using bulk density and apparent porosity. Multi-point BET was used to determine the pore characteristics of the membranes. The flexural strength of the produced membrane was determined using a three-point bending test. The microstructure of the fired clay was recorded using FESEM. Membranes produced from the clay were used for the treatment of tannery wastewater. The XRF result shows that the clay contains high silica and alumina. Also, the XRD results show the clay contains many peaks of montmorillonite and other peaks of feldspar and quartz. The BET shows that the pore size of the membranes produced was in the mesoporous range. From water quality test, it shows that the locally sourced clay can be used to produce ceramic membranes for filtration and separation applications.

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Assessing white clays from Tabarka (Tunisia) in the production of porcelain stoneware tiles

Molinari

Alaya²,

Pasti³

et al. 2023

Applied Clay Science

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The preparation of meso-porous membranes from Tunisian clay

Cited by 10 publications

References 19 publications

Low-temperature sintering of high-siliceous clay under conditions of oxygen deficiency

Low-temperature sintering of high-siliceous clay under conditions of oxygen deficiency

Preparation and Characterization of a Clay-Based Ceramic Membrane for Tannery Wastewater Treatment

Assessing white clays from Tabarka (Tunisia) in the production of porcelain stoneware tiles

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