Abstract
ZnO nanocrystalline powders doped with up to 5 at% manganese were synthesized and their photocatalytic activity was studied. Doped ZnO powders were prepared using a sol-gel process. The crystal structure and grain size of the particles were characterized by X-ray diffractometry and optical properties were studied using UVVis spectroscopy. The photoactivity of undoped and doped ZnO nanocrystalline powders was evaluated by monitoring the photo-bleaching of the aqueous solutions of Rhodamine B dye in the presence of ZnO under simulated sunlight. The results showed that up to 3 at% manganese were successfully doped into the nanocrystalline ZnO and that manganese-doping reduced the photocatalytic activity of ZnO.
| Original language | English |
|---|---|
| Pages (from-to) | 58-62 |
| Number of pages | 5 |
| Journal | Journal of the Australian Ceramic Society |
| Volume | 45 |
| Issue number | 1 |
| Publication status | Published - 2009 |
| Externally published | Yes |
Keywords
- Doping
- Manganese
- Nanocrystalline powder
- Photocatalysis
- Synthesis
- ZnO
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry