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Synthesis of MCM-41 nanomaterial from Algerian bentonite: influence of synthesis pH

Abstract : Mesoporous materials of the MCM-41 type were synthesized from Algerian bentonite as an aluminosilicate source without the addition of pure silica and aluminum reagents. The samples were synthesized under hydrothermal condition using cetyltrimithylammonium bromide (CTAB) as surfactant. The influence of initial synthesis pH on the material properties of as-synthesis MCM-41 samples was studied at different temperatures of crystallization. The samples were characterized using several techniques e. g. X-ray diffraction (XRD), N-2 adsorption-desorption and transmission electron microscope (TEM). The experimental results showed that bentonite can be used as an aluminosilicate source for the synthesis of Al-MCM-41. By decreasing the synthesis temperature of crystallization, it is necessary to decrease the synthesis pH value to form the best ordered hexagonal phase and eliminate the lamellar phase.
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https://hal.univ-lorraine.fr/hal-01644702
Contributor : Frederic Villieras <>
Submitted on : Wednesday, November 22, 2017 - 3:06:35 PM
Last modification on : Thursday, January 7, 2021 - 8:28:03 AM

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A Ali-Dahmane, L Brahmi, R. Hamacha, Frédéric Villiéras, A. Bengueddach. Synthesis of MCM-41 nanomaterial from Algerian bentonite: influence of synthesis pH. Journal of Fundamental and Applied Sciences = Revue des sciences fondamentales et appliquées, Centre universitaire d'El-Oued, 2017, 9 (2), ⟨10.4314/jfas.v9i2.2⟩. ⟨hal-01644702⟩

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