title: Insights into the Formation and Properties of Templated Dual Mesoporous Titania with Enhanced Photocatalytic Activity.
abstract: The one pot synthesis of dual mesoporous titania (2.3 and 7.7 nm) has been achieved from a mixture of fluorinated and Pluronic surfactants. The small and large mesopore networks are templated, respectively, by a fluorinated-rich liquid crystal and a Pluronic-rich liquid crystal, which are in equilibrium. After calcination at 350 °C, the amorphous walls are transformed into semicrystalline anatase preserving the mesoporous structure. Results concerning the photodegradation of methyl orange using the calcined photocatalysts highlight that the kinetic rate constant (k) determined for the dual mesoporous titania is 2.6 times higher than the k value obtained for the monomodal ones.
authors.affiliation: Université de Lorraine/CNRS , SRSMC, UMR7565, F-54506 Vandoeuvre-lès-Nancy Cedex, France.
authors.forename: Issam
authors.initials: I
authors.lastname: Naboulsi
authors.affiliation: Université de Haute Alsace (UHA)/CNRS , Equipe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), UMR7361, F-68093 Mulhouse Cedex, France.
authors.forename: Bénédicte
authors.initials: B
authors.lastname: Lebeau
authors.affiliation: Université de Haute Alsace (UHA)/CNRS , Equipe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), UMR7361, F-68093 Mulhouse Cedex, France.
authors.forename: Laure
authors.initials: L
authors.lastname: Michelin
authors.affiliation: Université de Lorraine/CNRS , LCPME, UMR7564, F-54600 Villers-lès-Nancy, France.
authors.forename: Cédric
authors.initials: C
authors.lastname: Carteret
authors.affiliation: Université de Haute Alsace (UHA)/CNRS , Equipe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), UMR7361, F-68093 Mulhouse Cedex, France.
authors.forename: Loic
authors.initials: L
authors.lastname: Vidal
authors.affiliation: Université de Haute Alsace (UHA)/CNRS , Equipe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), UMR7361, F-68093 Mulhouse Cedex, France.
authors.forename: Magali
authors.initials: M
authors.lastname: Bonne
authors.affiliation: Université de Lorraine/CNRS , SRSMC, UMR7565, F-54506 Vandoeuvre-lès-Nancy Cedex, France.
authors.forename: Jean-Luc
authors.identifier: http://orcid.org/0000-0002-0947-2552
authors.initials: JL
authors.lastname: Blin
keywords: dual mesoporosity; liquid crystals; nanosized walls; surfactant mixture; titania