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Synthesis of SBA-15/MCM-41 bimodal mesoporous silica

Published online by Cambridge University Press:  14 April 2016

Leyla Y. Jaramillo ,
Wilson A. Henao  and
Elizabeth Pabón-Gelves
Leyla Y. Jaramillo
Affiliation:
Grupo Calidad, Metrología y Producción, Instituto Tecnológico Metropolitano, 050015, Medellín, Colombia Grupo Ciencia de Materiales Avanzados, Universidad Nacional de Colombia. Medellín, Colombia
Wilson A. Henao
Affiliation:
Grupo Materiales Avanzados y Energía, Instituto Tecnológico Metropolitano, 050015, Medellín, Colombia
Elizabeth Pabón-Gelves
Affiliation:
Grupo Ciencia de Materiales Avanzados, Universidad Nacional de Colombia. Medellín, Colombia
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Abstract

Nanostructured silica materials with different morphologies and adjustable pore size have been studied by researches worldwide for several applications such as catalysis, separation, adsorption, and templates for new materials. The main interest in the development of these materials is to obtain a structure with a specific combination of pore sizes for a particular application. The morphology and textural properties of pores can be easily changed with the modification of the synthesis parameters, among these, the choice of surfactant or structure directing agent (SDA).

Accordingly, in this work, three types of nanostructured silica with different mesoporosity were synthesized by using of CTAB and Pluronic 123 as structure directing agents: SBA-15 and MCM-41 unimodal mesoporous silica and SBA-15/MCM-41 bimodal mesoporous silica.

To evaluate the effect of surfactant on the morphology and textural properties of pores, the materials were characterized by scanning electron microscopy (SEM), X-ray Diffraction (XRD) and nitrogen sorption (BET).

Keywords

Sol-GelComposite nanostructureporous materials
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1817: Symposium 1D – Nanostructured Materials and Nanotechnology—2015 , 2016 , imrc2015abs239
Copyright
Copyright © Materials Research Society 2016 

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References

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