title: High photocatalytic activity of V-doped SrTiO3 porous nanofibers produced from a combined electrospinning and thermal diffusion process.
abstract: In this letter, we report a novel V-doped SrTiO3 photocatalyst synthesized via electrospinning followed by a thermal diffusion process at low temperature. The morphological and crystalline structural investigations reveal not only that the V-doped SrTiO3 photocatalyst possesses a uniform, porous, fibrous structure, but also that some V(5+) ions are introduced into the SrTiO3 lattice. The photocatalytic capability of V-doped SrTiO3 porous nanofibers was evaluated through photodegrading methyl orange (MO) in aqueous solution under artificial UV-vis light. The results indicated that V-doped SrTiO3 porous nanofibers have excellent catalytic efficiency. Furthermore, the excellent catalytic activity was maintained even after five cycle tests, indicating that they have outstanding photocatalytic endurance. It is suggested that the excellent photocatalytic performance of doped SrTiO3 nanofibers is possibly attributed to the V(5+) ion doping increasing the light utilization as well as to the outstanding porous features, the excellent component and structure stability.
authors.affiliation: School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, People's Republic of China, ; Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Panpan
authors.initials: P
authors.lastname: Jing
authors.affiliation: School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, People's Republic of China, ; Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Wei
authors.initials: W
authors.lastname: Lan
authors.affiliation: School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, People's Republic of China, ; Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Su
authors.affiliation: School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, People's Republic of China, ; Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Erqing
authors.initials: E
authors.lastname: Xie
keywords: SrTiO3; electrospinning; photocatalysis; porous nanofibers; thermal diffusion; vanadium-ion doping