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Issue 1, 2014
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An energy-efficient route to the rapid synthesis of organically-modified SBA-15 via ultrasonic template removal

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Abstract

A low energy route for the removal of Pluronic P123 surfactant template during the synthesis of SBA-15 mesoporous silicas is explored. The conventional reflux of the hybrid inorganic–organic intermediate formed during co-condensation routes to Pr-SO3H-SBA-15 is slow, utilises large solvent volumes, and requires 24 h to remove ∼90% of the organic template. In contrast, room temperature ultrasonication in a small methanol volume achieves the same degree of template extraction in only 5 min, with a 99.9% energy saving and 90% solvent reduction, without compromising the textural, acidic or catalytic properties of the resultant Pr-SO3H-SBA-15.

Graphical abstract: An energy-efficient route to the rapid synthesis of organically-modified SBA-15 via ultrasonic template removal

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Publication details

The article was received on 12 Mar 2013, accepted on 06 Sep 2013 and first published on 17 Sep 2013


Article type: Paper
DOI: 10.1039/C3GC40474A
Citation: Green Chem., 2014,16, 197-202
  • Open access: Creative Commons BY license
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    An energy-efficient route to the rapid synthesis of organically-modified SBA-15 via ultrasonic template removal

    C. Pirez, K. Wilson and A. F. Lee, Green Chem., 2014, 16, 197
    DOI: 10.1039/C3GC40474A

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