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Photocatalytic TiO2 Macroscopic Fiber Obtained through Integrative Chemistry

Published online by Cambridge University Press:  01 February 2013

Natacha Kinadjian ,
Mickael Le Bechec ,
Thierry Pigot ,
Fabien Dufour ,
Olivier Durupthy ,
Ahmed Bentaleb ,
Eric Prouzet ,
Sylvie Lacombe  and
Rénal Backov
Natacha Kinadjian
Affiliation:
Université de Bordeaux, Centre de Recherche Paul Pascal, office 115, UPR 8641-CNRS, 115 Avenue Albert Schweitzer, 33600 Pessac, France Chemistry, ChemEng & Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo (ON) N2L 3G1, Canada
Mickael Le Bechec
Affiliation:
IPREM- Institut des Sciences Analytiques et de Physicochimie pour l’Environnement et les Matériaux, Université de Pau et des Pays de l’Adour, Hélioparc-2 Av. du Président Angot, F-64053 Pau Cedex 09, France
Thierry Pigot
Affiliation:
IPREM- Institut des Sciences Analytiques et de Physicochimie pour l’Environnement et les Matériaux, Université de Pau et des Pays de l’Adour, Hélioparc-2 Av. du Président Angot, F-64053 Pau Cedex 09, France
Fabien Dufour
Affiliation:
Chimie de la Matière Condensée-UMR 7574 CNRS-Université Pierre et Marie CURIE, Collège de France, Bâtiment C, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
Olivier Durupthy
Affiliation:
Chimie de la Matière Condensée-UMR 7574 CNRS-Université Pierre et Marie CURIE, Collège de France, Bâtiment C, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
Ahmed Bentaleb
Affiliation:
Université de Bordeaux, Centre de Recherche Paul Pascal, office 115, UPR 8641-CNRS, 115 Avenue Albert Schweitzer, 33600 Pessac, France
Eric Prouzet
Affiliation:
Chemistry, ChemEng & Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo (ON) N2L 3G1, Canada
Sylvie Lacombe
Affiliation:
IPREM- Institut des Sciences Analytiques et de Physicochimie pour l’Environnement et les Matériaux, Université de Pau et des Pays de l’Adour, Hélioparc-2 Av. du Président Angot, F-64053 Pau Cedex 09, France
Rénal Backov
Affiliation:
Université de Bordeaux, Centre de Recherche Paul Pascal, office 115, UPR 8641-CNRS, 115 Avenue Albert Schweitzer, 33600 Pessac, France
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Abstract

Photocatalytic properties of titanium oxide depend on the material size and shape, which can favour a higher interaction between reactants and catalyst. Most of the studies reported until now, show that reducing size down to the nanoscale increases the photocatalytic efficiency. We demonstrate that a multiscale shape design, integrating surface roughness, particle shape, and material 1D processing and orientation, can favour photocatalytic properties in the solid-gas regime, especially mineralization (conversion into CO2), when the material hierarchical 1D orientation is combined with unidirectional gas flow. Several materials with hierarchical structure were prepared and characterized. They have been tested for the photocatalytic mineralization of gaseous acetone, and compared with commercial catalysts. Our study reveals that a suitable combination of multiscale design can favour high mineralization.

Keywords

sol-gelcatalyticfiber
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1492: Symposium D/G – Materials for Sustainable Development—Challenges and Opportunities , 2013 , pp. 149 - 154
Copyright
Copyright © Materials Research Society 2013 

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References

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