Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32533
Title: Synthesis and photocatalytic activity of electrospun niobium oxide nanofibers
Authors: Qi, S
Zuo, R
Liu, Y
Wang, Y 
Keywords: A. Ceramics
A. Nanostructures
B. Sol-gel chemistry
D. Catalytic properties
Issue Date: 2013
Publisher: Pergamon Press
Source: Materials research bulletin, 2013, v. 48, no. 3, p. 1213-1217 How to cite?
Journal: Materials research bulletin 
Abstract: Niobium oxide (Nb2O5) nanofibers have been synthesized by sol-gel based electrospinning technique. Pure hexagonal phase (H-Nb2O5) and orthorhombic phase (O-Nb2O 5) nanofibers were obtained by thermally annealing the electrospun Nb2O5/polyvinylpyrrolidone composite fibers in air at 500°C and 700°C, respectively. The fibers were characterized using the X-ray diffraction, scanning electron microscopy, specific surface area analyzer and UV-vis diffuse reflectance spectroscopy. Photocatalytic activities of the obtained nanofibers were evaluated depending on the degradation of methyl orange. The results indicate that the heat-treatment temperature, the crystalline structure and the morphology affected the physical and chemical properties of the as-prepared Nb2O5 nanofibers. The H-Nb2O5 nanofibers obtained at lower temperature showed better potential for the application as a promising photocatalyst.
URI: http://hdl.handle.net/10397/32533
ISSN: 0025-5408
DOI: 10.1016/j.materresbull.2012.11.074
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