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Highly efficient Ag₂O/Bi₂O₂CO₃ p-n heterojunction photocatalysts with improved visible-light responsive activity.
- Source :
-
ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2014 Jul 23; Vol. 6 (14), pp. 11698-705. Date of Electronic Publication: 2014 Jul 08. - Publication Year :
- 2014
-
Abstract
- Ag2O/Bi2O2CO3 p-n heterojunctions are prepared with commercial Bi2O2CO3 as precursor via a simple photosynthesis process. The obtained Ag2O/Bi2O2CO3 p-n heterojunctions show higher photocatalytic activity than that of pure n-Bi2O2CO3, and the obtained Ag2O/Bi2O2CO3 (AB-4) heterojunction exhibits the best photocatalytic activity under visible light (λ > 400 nm), with which Rhodamine B, methyl blue and methyl orange can be completely degraded within 12 min. Photoluminescent spectra and photoelectrochemical measurement further indicate that the Ag2O/Bi2O2CO3 p-n heterojunctions greatly enhance the charge generation and suppress the charge recombination of photogenerated electron-hole pairs, which would be beneficial to improve their photocatalytic activity.
Details
- Language :
- English
- ISSN :
- 1944-8252
- Volume :
- 6
- Issue :
- 14
- Database :
- MEDLINE
- Journal :
- ACS applied materials & interfaces
- Publication Type :
- Academic Journal
- Accession number :
- 24960443
- Full Text :
- https://doi.org/10.1021/am502481z