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Issue 4, 2010
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Generic way for functionalised well-ordered cubic mesoporous silica via direct synthesis approach

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Abstract

Applications of functionalised mesoporous silica are dependent upon the location, the quantity and the accessibility of the functional groups attached in the inner pores, particularly in the case of cubic ordered porous structure. Facilitating such material synthesis could be of great interest. Herein, we present a controlled and generic route to functionalised and well-ordered cubic mesoporous silica by direct synthesis and an efficient method for complete template removal without structure collapse nor loss of organic content, leading to better functional accessibility and thus material capability. Materials were obtained by co-condensation of tetraethylorthosilicate (TEOS) and an organotriethoxysilane Σ-(CH2)3-Si(OR′)3 (with R′ = Me or Et and Σ = CN, SH, CH3COCHCOCH3 (acac) and PO(OEt)2) in the presence of F127 as structure-directing agent in acidic media. All materials were characterised by XRD, TEM, TGA, 13C and 29Si NMR spectroscopies, nitrogen gas adsorption–desorption measurements as well as elemental analyses. Functional accessibility and adsorption capacity of such materials were proved by complexation of lanthanide ions thanks to acac groups.

Graphical abstract: Generic way for functionalised well-ordered cubic mesoporous silica via direct synthesis approach

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Publication details

The article was received on 05 Dec 2009, accepted on 18 Dec 2009 and first published on 16 Feb 2010


Article type: Paper
DOI: 10.1039/B9NJ00734B
New J. Chem., 2010,34, 738-743

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    Generic way for functionalised well-ordered cubic mesoporous silica via direct synthesis approach

    A. Boullanger, J. Alauzun, A. Mehdi, C. Reyé and R. J. P. Corriu, New J. Chem., 2010, 34, 738
    DOI: 10.1039/B9NJ00734B

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