Preparation of spherical MCM-41 molecular sieve at room temperature: Influence of the synthesis conditions in the structural properties |
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Authors: | H.I. Melé ndez-Ortiz,L.A. Garcí a-CerdaY. Olivares-Maldonado,G. CastruitaJ.A. Mercado-Silva,Y.A. Perera-Mercado |
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Affiliation: | Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo # 140, C.P. 25253 Saltillo, COAH, Mexico |
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Abstract: | A rapid and facile synthesis route to obtain mesoporous MCM-41 silica at room temperature under basic conditions using as template cetyltrimethylammonium bromide (CTAB) is reported. The synthesis variables such as reaction time, molar ratios of CTAB/TEOS and H2O/ethanol in the initial gel composition were studied. Samples were characterized by X-ray diffraction, nitrogen adsorption–desorption analyses, scanning electron microscopy and transmission electron microscopy. It was found that reaction conditions affect the quality of the MCM-41 silica. This silica can be prepared at short periods of time, and it exhibited a uniform size and spherical morphology. |
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Keywords: | MCM-41 silica Room temperature synthesis Mesoporous materials |
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