Back to Search
Start Over
Mo + C codoped TiO(2) using thermal oxidation for enhancing photocatalytic activity.
- Source :
-
ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2010 Apr; Vol. 2 (4), pp. 1173-6. - Publication Year :
- 2010
-
Abstract
- The photocatalytic activity of TiO(2) is enhanced mainly through heightening absorption of UV-vis light and improving the separation efficiency of photoinduced electrons and holes. The recent new theoretical research revealed that the TiO(2) codoped with Mo + C is considered to be an optimal doping system. On the basis of this theory, the Mo + C codoped TiO(2) powders were first experimentally synthesized by thermal oxidizing a mixture of TiC and MoO(3) powders in the air. The XRD patterns and the XPS survey spectrum showed that carbon (C) acted as a Ti-O-C band structure and molybdenum (Mo) existed as Mo(6+) in anatase TiO(2). The Mo+C codoped TiO(2) had a 32 nm red shift of the spectrum onset compared with pure anatase TiO(2), and its band gap was reduced from 3.20 to 2.97 eV. The photocurrent of the Mo + C codoped TiO(2) was about 4 times as high as that of pure anatase TiO(2), and its photocatalytic activity on decomposition of methylene blue was enhanced.
Details
- Language :
- English
- ISSN :
- 1944-8244
- Volume :
- 2
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- ACS applied materials & interfaces
- Publication Type :
- Academic Journal
- Accession number :
- 20423136
- Full Text :
- https://doi.org/10.1021/am100011c