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  • Title: Electrospun nanofibers of V-doped TiO2 with high photocatalytic activity.
    Author: Zhang Z, Shao C, Zhang L, Li X, Liu Y.
    Journal: J Colloid Interface Sci; 2010 Nov 01; 351(1):57-62. PubMed ID: 20692670.
    Abstract:
    In this work, V-doped TiO(2) nanofibers with different V contents have been fabricated by an electrospinning technique. The as-prepared nanofibers were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectra, X-ray photoelectron spectroscopy (XPS), and UV-Vis diffuse reflectance (DR) spectroscopy. The results indicated that the V(4+) or V(5+) ions were successfully incorporated into the crystal lattice of anatase TiO(2) nanofibers. Meanwhile, the V doping could extend the visible light absorption of TiO(2) nanofibers. The photocatalytic experiments indicated that the obtained V-doped TiO(2) nanofibers possessed high activity for the photodegradation of organic pollutant methylene blue (MB). Especially, the 1.0 and 5.0 wt.% V-doped TiO(2) nanofibers exhibited the best catalytic activity under visible and ultraviolet (UV) light irradiation, respectively. Also, these nanofibers could be easily recycled without a decrease of the photocatalytic activity.
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