Ceramic membrane support based on kaolin and solid waste from hydrodistillation of Rosmarinus officinalis L

Rafya, Meriem; Misrar, Wafa; Saâdi, Latifa; Mansori, Mohammed; Waqif, Mohamed; Hafidi, Abdellatif; Zehhar, Naima; Benkhalti, Fatiha

doi:10.1016/j.matchemphys.2022.127030

Cited by 10 publications

(1 citation statement)

References 48 publications

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“…The peaks characteristic of kaolinite (2Ɵ =12.3° and 24.8°), the peaks that characterize muscovite (2Ɵ = 8.9 ° and 17.8 °), and quartz (2Ɵ = 26.5°) are mainly observed. For kaolin treated at 1150°C, the intensity of the peaks becomes increasingly essential, and a literature search has shown that treatment at 1150°C results in the appearance of the characteristic mullite peak (Alsubei et al, 2024;Rafya et al, 2023), the kaolinite phase has disappeared and the mullite phase [3Al2O3, 2SiO2] is the main mineral present in the powder, meaning that porosity is independent of the phase formed, these identified phases are of great importance due to their promising physical and mechanical properties.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and application of modified membranes for efficient cationic and anionic dye elimination

Hafifi,

Chougui,

Chemrak

et al. 2023

J. Eng. Exact Sci.

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This study focuses on developing ceramic ultrafiltration membranes using locally sourced kaolin clay and feldspar. An active layer composed of graphene and alkoxide is added to enhance the performance of these clay supports. This layer is thin, porous, and can vary in thickness. The support and filter layer's porous properties are characterized using SEM, DRX, ATG/ATD, XPS, and FTIR techniques. Filtration tests are conducted on modified porous tubular supports using cationic and anionic dye solutions. The filtration is performed tangentially at a pressure of 3.5 bar and a processing time of 120 minutes. The retention rates of the colored solutions are measured using a UV-visible spectrophotometer. The results show a 100% retention rate for supranol yellow and orange II at a concentration of 10-4 M, while for crystal violet and malachite green, the retention rates are 92.03% and 95.30%, respectively.

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Section: Resultsmentioning

confidence: 99%

Synthesis and application of modified membranes for efficient cationic and anionic dye elimination

Hafifi,

Chougui,

Chemrak

et al. 2023

J. Eng. Exact Sci.

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High‐performance geopolymer from brick wastes and metakaolin: Alkali treatment optimization, phase transformation, and property analysis

Moujoud,

Sair,

Ousaleh

et al. 2024

Structural Concrete

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This study presents a cost‐effective and eco‐friendly method to produce aluminosilicate materials using red brick waste (RBW) and metakaolin (MK) as silica and alumina precursors. RBW was subjected to alkaline fusion to increase its dissolution for geopolymerization reaction. Response surface methodology was used to investigate the effect of NaOH concentration and fusion temperature on the leaching of silica and alumina from RBW. The microstructure of the alkali‐fused RBW was analyzed using x‐ray diffraction and Fourier‐transform infrared spectroscopy. Response surface methodology confirmed and revealed that higher NaOH concentration (14 M) and a temperature of 660°C favored solubilized phase development, resulting in 85% and 50% leached silica and alumina, respectively. These optimized parameters were then employed to prepare geopolymer materials with different proportions of alkali‐fused RBW and MK, using NaOH and Na2SiO3 as the alkaline solution. The elaborated geopolymer binders were characterized using various techniques such as x‐ray diffraction (DRX), Fourier‐transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermal conductivity (λ), and fire resistance. The results showed that geopolymers containing 30 wt.% of alkali‐fused RBW exerted good mechanical and thermal insulation properties compared to conventional cement materials. However, excessive RBW addition causes negative effects. In addition, it was found that the blended geopolymers exhibited an increase in heat release rate (HRR), resulting in reduced fire resistance due to the presence of unreacted NaOH. Overall, these findings confirmed the potential sustainable use of RBW to partially replace MK in geopolymer as a material for building construction.

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Development of low-cost clayey ceramic filtering membrane with controllable porosity and high mechanical strength

Boutaleb,

Tabit,

Mansori

et al. 2024

Ceramics International

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Ceramic membrane support based on kaolin and solid waste from hydrodistillation of Rosmarinus officinalis L

Cited by 10 publications

References 48 publications

Synthesis and application of modified membranes for efficient cationic and anionic dye elimination

Synthesis and application of modified membranes for efficient cationic and anionic dye elimination

High‐performance geopolymer from brick wastes and metakaolin: Alkali treatment optimization, phase transformation, and property analysis

Development of low-cost clayey ceramic filtering membrane with controllable porosity and high mechanical strength

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