Mesoporous titania with anatase walls by flash induction calcination

[Display omitted] •Ordered mesoporous titania with anatase framework in short synthesis time.•Simultaneous surfactant removal and wall crystallization by flash induction.•Photocatalytic activity towards methyl orange degradation.•Materials with similar properties than the ones obtained by convention...

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Bibliographic Details
Published in:Microporous and mesoporous materials 2015-01, Vol.201, p.43-49
Main Authors: Assaker, Karine, Benamor, Taissire, Michelin, Laure, Lebeau, Bénédicte, Marichal, Claire, Stébé, Marie-José, Blin, Jean-Luc
Format: Article
Language:English
Subjects:
Anatase
Chemical Sciences
Crystallization
Flash induction
Mesoporosity release
Ordered mesoporous TiO2
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Summary:[Display omitted] •Ordered mesoporous titania with anatase framework in short synthesis time.•Simultaneous surfactant removal and wall crystallization by flash induction.•Photocatalytic activity towards methyl orange degradation.•Materials with similar properties than the ones obtained by conventional calcination. Induction heating has been used to thermally treat mesostructured TiO2 with hexagonal 2D structure prepared by a combined Liquid Crystalline Template (LCT) and Evaporation Induced Self-Assembly (EISA) synthesis method. Induction treatment induces the decomposition of the structuring agent P123 and the formation of anatase. Highly ordered mesoporous titania with a semi crystalline framework can be obtained very fast, i.e. 5min at 460°C or 15min at 300°C. The recovered materials have similar structural, textural properties and photoactivity towards the decomposition of methyl orange than the mesostructured TiO2 obtained after ethanol extraction followed by a calcination at 400°C in a conventional furnace.
ISSN:1387-1811
1873-3093
DOI:10.1016/j.micromeso.2014.09.028