title: Electrospun nanofibers of V-doped TiO2 with high photocatalytic activity.
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.
authors.affiliation: Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China.
authors.forename: Zhenyi
authors.initials: Z
authors.lastname: Zhang
authors.forename: Changlu
authors.initials: C
authors.lastname: Shao
authors.forename: Lina
authors.initials: L
authors.lastname: Zhang
authors.forename: Xinghua
authors.initials: X
authors.lastname: Li
authors.forename: Yichun
authors.initials: Y
authors.lastname: Liu
mesh_terms: D002384:Catalysis; D055664:Electrochemical Techniques / Q000379:methods*; D008751:Methylene Blue / Q000737:chemistry; D057139:Nanofibers / Q000737:chemistry*; D010316:Particle Size; D010777:Photochemistry; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: C009495:titanium dioxide; D014025:Titanium; D008751:Methylene Blue