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Synthesis and Photocatalytic Performance of Titanium Dioxide Nanofibers and the Fabrication of Flexible Composite Films from Nanofibers
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2012 (English)In: Journal of Nanoscience and Nanotechnology, ISSN 1533-4880, Vol. 12, no 2, 1421-1424 p.Article in journal, Meeting abstract (Refereed) Published
Abstract [en]

Titanium dioxide nanofibers were synthesized and applied in flexible composite films that are easy to handle and recycle after use. The nanofibers were obtained in a multi-step procedure. First, sodium titanate nanofibers were prepared from TiO2 nanoparticles through the alkali hydrothermal method. In the next step, sodium hydrogen titanate nanofibers were made by washing the sodium titanate nanofibers in HCI solution. Finally, the sodium hydrogen titanate nanofibers were transformed to TiO2 anatase nanofibers by calcination in air. The photocatalytic activity of TiO2 anatase nanofibers were evaluated and compared to a TiO2 nanoparticle catalyst by decomposing methyl orange dye in aqueous solutions. The achieved reaction rate constant of TiO2 anatase nanofibers was comparable to that of Degussa P25. Paper-like flexible composite films were prepared by co-filtrating aqueous dispersions of TiO2 catalyst materials and cellulose. The composite films made from the nanofibers exhibit better mechanical integrity than those of the nanoparticle-cellulose composites.

Place, publisher, year, edition, pages
2012. Vol. 12, no 2, 1421-1424 p.
Keyword [en]
TiO2, Nanofiber, Nanowire, Nanoparticle, Flexible Film, Photocatalyst
National Category
Nano Technology
URN: urn:nbn:se:umu:diva-55681DOI: 10.1166/jnn.2012.4655ISI: 000303280000107OAI: diva2:528835
International Conference on Electronic Materials (IUMRS-ICEM), AUG 22-27, 2010, Seoul, SOUTH KOREA
Available from: 2012-05-28 Created: 2012-05-28 Last updated: 2013-02-21Bibliographically approved

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Kordas, Krisztian
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Department of Chemistry
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