Journal
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
Volume 25, Issue 1, Pages 6-11Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2015.01.002
Keywords
Photocatalyst; Titaninm dioxide; Semiconductor; Photodegradation; Nanotechnology
Funding
- Shanghai Municipal Natural Science Foundation [13ZR1429300]
- Basic Research Program of Shanghai Science and Technology Committee [13NM1401600]
- Shanghai Committee of Science and Technology [12nm0504800]
Ask authors/readers for more resources
Gd-La codoped TiO2 nanoparticles with diameter of 10 nm were successfully synthesized via a sol gel method. The photocatalytic activity of the Gd-La codoped TiO nanoparticles evaluated by photodegrading methyl orange was significantly enhanced compared to that of undoped or Gd or La mono-doped TiO2. Ti4+ may substitute for La3+ and Gd3+ in the lattices of rare earth oxides to create abundant oxygen vacancies and surface defects for electron trapping and dye adsorption, accelerating the separation of photogenerated electron hole pairs and methyl orange photodegradation. It is believed that the formation of an excitation energy level below the conduction band of TiO2 from the binding of electrons and oxygen vacancies decreases the excitation energy of Gd La codoped TiO2, resulting in versatile solar photocatalysts. The results suggest that Gd La codoped TiO2 nanoparticles are promising for future solar photocatalysts. (C) 2015 Chinese Materials Research Society. Production and hosting by 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