Titanium dioxide-coated nanofibers for advanced filters

This article reports on titanium dioxide (TiO 2 )-coated nanofibers deposited on a filter surface by the electrospinning process. After depositing a micrometer-thick film of polyamide 11 nanofibers on polypropylene fabric, TiO 2 nanoparticles can be directly electrosprayed onto the nanofibers. X-ray...

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Bibliographic Details
Published in:Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2010-09, Vol.12 (7), p.2511-2519
Main Authors: Lee, Byung-Yong, Behler, Kris, Kurtoglu, Murat Erdem, Wynosky-Dolfi, Meghan Ann, Rest, Richard F., Gogotsi, Yury
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Deposition
Electrospinning
Filters
Inorganic Chemistry
Lasers
Materials Science
Nanofibers
Nanoparticles
Nanostructure
Nanotechnology
Optical Devices
Optics
Photonics
Physical Chemistry
Polyamide resins
Polyamides
Research Paper
Rutile
Titanium dioxide
X-ray diffraction
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Summary:This article reports on titanium dioxide (TiO 2 )-coated nanofibers deposited on a filter surface by the electrospinning process. After depositing a micrometer-thick film of polyamide 11 nanofibers on polypropylene fabric, TiO 2 nanoparticles can be directly electrosprayed onto the nanofibers. X-ray diffraction and Raman spectroscopy showed minimal change in the phase composition (anatase and rutile) and no change in the particle size of nanocrystalline TiO 2 after coating. Scanning electron microscopy demonstrated that nanofibers were uniformly coated by titanium dioxide nanoparticles without agglomeration. TiO 2 -coated filters showed excellent photocatalytic-bactericidal activity and photo-induced hydrophilicity.
ISSN:1388-0764
1572-896X
DOI:10.1007/s11051-009-9820-x