Rapid Room Temperature Synthesis of Hexagonal Mesoporous Silica Using Inorganic Silicate Sources and Cationic Surfactants under Highly Acidic Conditions

The room-temperature synthesis of mesoporous silica was investigated by using cationic surfactants and inorganic Si sources, like sodium silicate and colloidal silica. Mesoporous silica analogous to the hexagonal MCM-41 could be obtained over a wide range of pH below ca. 11 within short synthesis ti...

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Veröffentlicht in:Journal of porous materials 1997-06, Vol.4 (2), p.129-134
Hauptverfasser: Setoguchi, Yukako M, Teraoka, Yasutake, Moriguchi, Isamu, Kagawa, Shuichi, Tomonaga, Nariyuki, Yasutake, Akinori, Izumi, Jun
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Sprache:eng
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Zusammenfassung:The room-temperature synthesis of mesoporous silica was investigated by using cationic surfactants and inorganic Si sources, like sodium silicate and colloidal silica. Mesoporous silica analogous to the hexagonal MCM-41 could be obtained over a wide range of pH below ca. 11 within short synthesis time (3 h), when the Q^sup 4^-state Si was absent in the Si source solution prior to mixing with an aqueous solution of cationic surfactants. It was suggested that the strongly acidic conditions (pH < 1) were favorable to give mesoporous silica materials with higher surface area and larger mesopore volume.[PUBLICATION ABSTRACT]
ISSN:1380-2224
1573-4854
DOI:10.1023/A:1009684801918