Morphological and photocatalytic properties of PVA/TiO2 nanocomposite fibers produced by electrospinning.
In this study, PVA/TiO2 anatase nanocomposite fibers were prepared successfully by electrospinning. The nanofibers were characterized by SEM, XRD, Raman spectroscopy, EDS, TEM and UV-Vis diffuse reflectance spectroscopy. The characterization showed that the average diameters obtained are dependent of the total loading used. The TiO2 loading showed to be effective in the nanocomposite, changing the UV absorbance but significantly accelerating the degradation of the polymer. This aspect may be useful in order to improve the biodegradability of this polymer by reducing chain lengths.
Departamento de Química, Universidade Federal de São Carlos, São Carlos - SP 13565-905, Brazil.
Rodrigo G F
RG
Costa
Caue
C
Ribeiro
Luiz H C
LH
Mattoso
D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D057139:Nanofibers / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D055668:Photochemical Processes; D011142:Polyvinyl Alcohol / Q000737:chemistry*; D012235:Rhodamines / Q000737:chemistry; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
D012235:Rhodamines; C009495:titanium dioxide; D011142:Polyvinyl Alcohol; D014025:Titanium; C029773:rhodamine B