Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6497477 | Applied Catalysis A: General | 2015 | 19 Pages |
Abstract
- Zirconium dioxide has been doped with Ce4+ ions (0.5%) using three distinct synthetic procedures.
- A red shift of the ZrO2 band gap transition is observed in the case of the doped samples.
- Visible light produces charge separation in the system.
- Photons with energy EÂ <Â 2.95Â eV cover a band gap of 5Â eV by means of a double jump mechanism.
- Oxygen is reduced to surface superoxide by photo-promoted electrons.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Chiara Gionco, Maria Cristina Paganini, Mario Chiesa, Sara Maurelli, Stefano Livraghi, Elio Giamello,