Hydrothermal Synthesis of Mesoporous Silica MCM-41 Using Commercial Sodium Silicate

In this work, ordered mesoporous silica MCM-41 was prepared by hydrothermal synthesis using industrial-grade sodium silicate (Na2SiO3) as silica source, hexadecyltrimethyl-ammonium bromide (CTAB) as template agent and ethyl acetate as pH regulator. The influence of CTAB/SiO2 molar ratio, reaction ti...

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Bibliographic Details
Published inJournal of the Mexican Chemical Society Vol. 57; no. 2; pp. 73 - 79
Main Authors Meléndez-Ortiz, Héctor Iván, Mercado-Silva, Alfonso, García-Cerda, Luis Alfonso, Castruita, Griselda, Perera-Mercado, Yibran Argenis
Format Journal Article
LanguagePortuguese
Published Sociedad Química de México A.C 01.04.2013
Subjects
Chemistry, Multidisciplinary
hydrothermal synthesis
Mesoporous silica
X-rays
silicato de sodio
MCM-41
Sílice mesoporosa
síntesis hidrotermal
sodium silicate
rayos X
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Summary:In this work, ordered mesoporous silica MCM-41 was prepared by hydrothermal synthesis using industrial-grade sodium silicate (Na2SiO3) as silica source, hexadecyltrimethyl-ammonium bromide (CTAB) as template agent and ethyl acetate as pH regulator. The influence of CTAB/SiO2 molar ratio, reaction time, aging temperature, and co-surfactant type on the structural and morphological properties of the obtained silica was studied. The products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and nitrogen adsorption-desorption isotherms. Ordered mesoporous MCM-41 silica was obtained at 80 °C by using a range of CTAB/SiO2 molar ratio from 0.35 to 0.71 and reaction times up to 72 h and isopropanol (i-PrOH) as co-surfactant.
ISSN:1870-249X