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TiO2 macroscopic fibers bearing outstanding photocatalytic properties obtained through an integrative chemistry-based scale-up semi-industrial process

Abstract : In here we depict the morphogenesis and associated properties of TiO2-based macroscopic fibers designed for the photodecomposition of volatile organic compounds (VOC). We employed a continuous industrially scalable extrusion-based process making the use of hybrid sols of amorphous titania nanoparticles, polyvinyl alcohol (PVA) and occasionally latex nanoparticles. This process allowed for the continuous generation of hybrid TiO2/latex/PVA or TiO2/PVA macroscopic fibers. Upon thermal treatment, biphasic porous fibers are obtained containing the anatase phase of TiO2 with 10-15% of brookite These fibers, which can be manufactured under several hundred meter of length, are offering significantly improved phototocatalytic efficiency now comparable to the commercial Quartzel®PCO photocatalyst for gas-phase acetone mineralization.
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https://hal.archives-ouvertes.fr/hal-01499759
Contributor : Sylvie Blanc <>
Submitted on : Friday, March 31, 2017 - 10:04:00 PM
Last modification on : Tuesday, February 9, 2021 - 3:21:03 AM

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N. Kinadjian, Mickaël Le Béchec, W. Neri, P. Poulin, Sylvie Lacombe-Lhoste, et al.. TiO2 macroscopic fibers bearing outstanding photocatalytic properties obtained through an integrative chemistry-based scale-up semi-industrial process. MRS Online Proceedings Library, 2015, 1804, pp.7-12. ⟨10.1557/opl.2015.498⟩. ⟨hal-01499759⟩

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