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<p>This study investigates the production of highly porous ceramics using Moroccan bentonite clay and mint leaves as pore-forming agents. The raw materials were characterized using X-ray fluorescence to determine chemical composition, X-ray diffraction to identify mineral phases, and differential thermal analysis and thermogravimetry. Ceramic samples were fabricated by uniaxial pressing and sintered at different temperatures up to 1000&#xa0;°C. The effects of sintering temperatures (900–1000&#xa0;°C) and pore agent content (0–25%) on morphology, phase composition, and technological properties (apparent porosity, water absorption, density, shrinkage, flexural strength, and thermal conductivity) were examined. The results revealed significant variations in properties, with apparent porosity ranging from 24.20 to 47.28%, density from 2.20 to 1.43&#xa0;g/cm<sup>3</sup>, thermal conductivity from 0.62 to 0.28&#xa0;W/m.K, and flexural strength from 5.09 to 12.00&#xa0;MPa. These findings demonstrate the potential of utilizing waste mint with bentonite clay to create high-quality, highly porous ceramic materials suitable for energy-efficient building applications.</p> Graphical abstract <p></p>

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Potential use of mint waste and bentonite clay in sustainable porous ceramic manufacturing

  • 期刊论文

  • 发表日期：

    2025年1月7日

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  • Ayoub Imgirne,
  • Youssef Arkame,
  • Achraf Harrati,
  • Aboubakar Moustapha,
  • Tarik Tamri,
  • Fahd Oudrhiri Hassani,
  • Abdelilah El Haddar,
  • Hanane Ait Hmeid,
  • Ali Sdiri,
  • Chaouki Sadik

摘要

This study investigates the production of highly porous ceramics using Moroccan bentonite clay and mint leaves as pore-forming agents. The raw materials were characterized using X-ray fluorescence to determine chemical composition, X-ray diffraction to identify mineral phases, and differential thermal analysis and thermogravimetry. Ceramic samples were fabricated by uniaxial pressing and sintered at different temperatures up to 1000 °C. The effects of sintering temperatures (900–1000 °C) and pore agent content (0–25%) on morphology, phase composition, and technological properties (apparent porosity, water absorption, density, shrinkage, flexural strength, and thermal conductivity) were examined. The results revealed significant variations in properties, with apparent porosity ranging from 24.20 to 47.28%, density from 2.20 to 1.43 g/cm3, thermal conductivity from 0.62 to 0.28 W/m.K, and flexural strength from 5.09 to 12.00 MPa. These findings demonstrate the potential of utilizing waste mint with bentonite clay to create high-quality, highly porous ceramic materials suitable for energy-efficient building applications.

Graphical abstract