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

Authors

  • Héctor Iván Meléndez-Ortiz Centro de Investigación en Química Aplicada (CIQA)
  • Alfonso Mercado-Silva Centro de Investigación en Química Aplicada (CIQA)
  • Luis Alfonso García-Cerda Centro de Investigación en Química Aplicada (CIQA)
  • Griselda Castruita Centro de Investigación en Química Aplicada (CIQA)
  • Yibran Argenis Perera-Mercado Centro de Investigación en Química Aplicada (CIQA)

DOI:

https://doi.org/10.29356/jmcs.v57i2.215

Keywords:

Mesoporous silica, MCM-41, sodium silicate, hydrothermal synthesis, X-rays

Abstract

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 roducts 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 cosurfactant.

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Published

2017-10-12

Issue

Section

Regular Articles