Mesoporous Silica Materials Synthesized via Sol-Gel Methods Modified with Ionic Liquid and Surfactant Molecules

Mesoporous silica materials were synthesized via a sol-gel method employing a room temperature ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate, [bmim][BF4]) as a new solvent medium and further modified with surfactant (hexadecyl-trimethyl-ammonium bromide, CTAB) as a pore templating mate...

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Bibliographic Details
Published inChinese journal of chemical physics Vol. 21; no. 6; pp. 596 - 600
Main Authors Xu, Cun-ying, Tang, Ru-lan, Hua, Yi-xin, Zhang, Peng-xiang
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.12.2008
Subjects
Surfactant
Mesoporous silica
Ionic liquid
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Summary:Mesoporous silica materials were synthesized via a sol-gel method employing a room temperature ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate, [bmim][BF4]) as a new solvent medium and further modified with surfactant (hexadecyl-trimethyl-ammonium bromide, CTAB) as a pore templating material. The synthesized samples were characterized by the transmission electron microscopy, X-ray diffraction, and N2 adsorption-desorption techniques. The results indicated that the mesoporous silica synthesized by using [bmim][BF4] and CTAB as mixed templates showed better mesostructural order and smaller pore size, compared with mesoporous silica materials synthesized by using single [bmim][BF4] as template under the same conditions. This indicates that the presence of surfactant can affect the microstructures of silica prepared by the present synthesis method.
ISSN:1674-0068
2327-2244
DOI:10.1088/1674-0068/21/06/596-600