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Geometrical Study on Change of Pore Volume of MCM-41 Functionalized with Aminopropyl Groups

Published online by Cambridge University Press:  01 February 2011

Kenji Murakami ,
Kiyoshi Fuda  and
Mikio Sugai
Kenji Murakami
Affiliation:
murakami@ipc.akita-u.ac.jp, Faculty of Engineering and Resource Science, Akita University, Department of Materials-process Engineering & Applied Chemistry for Environments, Tegatagakuencho 1-1, Akita, 0108502, Japan, +81-18-889-2433, +81-18-837-0404
Kiyoshi Fuda
Affiliation:
fudak@ipc.akita-u.ac.jp, Faculty of Engineering and Resource Science, Akita University, Department of Materials-process Engineering &Applied Chemistry for Environments, Tegatagakuencho 1-1, Akita, 0108502, Japan
Mikio Sugai
Affiliation:
sugai@ipc.akita-u.ac.jp, Faculty of Engineering and Resource Science, Akita University, Department of Materials-process Engineering &Applied Chemistry for Environments, Tegatagakuencho 1-1, Akita, 0108502, Japan
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Abstract

Mesoporous silicas functionalized with aminopropyl groups were synthesized by co-condensation of tetraethoxysilane (TEOS) and 3-aminopropyl triethoxysilane (APTES) and characterized by nitrogen adsorption-desorption measurements. The pore volume drastically decreased from about 900 mm3/g for the unfunctionalized mesoporous silica to about 300 mm3/g for the aminopropyl-functionalized mesoporous silica (1.65 mmol-NH2/g). This result was explained in terms of the surface density of the aminopropyl groups in the pore.

Keywords

nanostructurecompositesurface chemistry

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1056: Symposium HH – Nanophase and Nanocomposite Materials V , 2007 , 1056-HH08-41
Copyright
Copyright © Materials Research Society 2008

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References

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