Article

Titanium dioxide-coated nanofibers for advanced filters

Journal of Nanoparticle Research (impact factor: 3.29). 04/2012; 12(7):2511-2519. DOI:10.1007/s11051-009-9820-x pp.2511-2519

ABSTRACT This article reports on titanium dioxide (TiO2)-coated nanofibers deposited on a filter surface by the electrospinning process. After depositing a micrometer-thick film
of polyamide 11 nanofibers on polypropylene fabric, TiO2 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 TiO2 after coating. Scanning electron microscopy demonstrated that nanofibers were uniformly coated by titanium dioxide nanoparticles
without agglomeration. TiO2-coated filters showed excellent photocatalytic-bactericidal activity and photo-induced hydrophilicity.

KeywordsElectrospinning-Titanium dioxide-Photocatalyst-Filter-Fibers-Electrospraying-Nanomanufacturing

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Keywords

anatase
 
filter surface
 
KeywordsElectrospinning-Titanium dioxide-Photocatalyst-Filter-Fibers-Electrospraying-Nanomanufacturing
 
micrometer-thick film
 
nanocrystalline TiO2
 
nanofibers
 
particle size
 
polyamide 11 nanofibers
 
Raman spectroscopy
 
Scanning electron microscopy
 
TiO2 nanoparticles
 
TiO2)-coated nanofibers
 
TiO2-coated filters
 
titanium dioxide
 
titanium dioxide nanoparticles