Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 581, Issue -, Pages 40-45Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.06.141
Keywords
F-doped BiVO4; Two-step hydrothermal process; Photocatalytic activity
Categories
Funding
- National Natural Science Foundation of China [51202136]
- Graduate Innovation Found of Shaanxi University of Science and Technology
Ask authors/readers for more resources
F-doped BiVO4 spheres were synthesized by a simple two step hydrothermal process. The effects of F ions on the microstructure and photocatalytic activity of BiVO4 were investigated in detail. The undoped BiVO4 solid spheres with smooth surface are chemically etched by corrosive F- ions, which result in the F-doped BiVO4 spheres with large pores on the surface. The substitution of O2- ions by F- ions could result in the decrease of the BiVO4 lattice parameters, influence the chemical environment surrounding the Bi, V and O elements, cause the red-shifted of the adsorption edge and modify the absorption abilities in visible light region. F-doped BiVO4 spheres exhibited higher photocatalytic activity than undoped BiVO4 under visible light irradiation because an appropriate amount of F- ions introduced into BiVO4 crystal lattice might effectively restrain the recombination of photogenerated electron-hole pairs. (c) 2013 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available