Abstract
ZnO nanopowders were prepared through a direct precipitation method, and then dipped into Yb(NO 3) 3 aqueous solution to obtain the Yb 3+-doped ZnO nanoparticles. The obtained ZnO nanopowders and its Yb 3+-doped products were characterized by XRD, FESEM, HRTEM, XPS, diffuse reflection absorption spectrum and spectrophotometry. The experimental results show that the obtained ZnO nanoparticles after calcinations at 500°C are hexagonal crystal phase with narrower particle size distribution. Moreover, the samples were employed for the photodegradation of Rhodamine B in an aqueous suspension, and it was found that suitable Yb 3+-doping levels can efficiently improve the photocatalytic activity of the obtained ZnO nanoparticles.
| Original language | English |
|---|---|
| Pages (from-to) | 2146-2149 |
| Number of pages | 4 |
| Journal | Gongneng Cailiao/Journal of Functional Materials |
| Volume | 42 |
| Issue number | 12 |
| Publication status | Published - Dec 2011 |
| Externally published | Yes |
Keywords
- Direct precipitation method
- Photocatalytic degradation
- Rare-earth ion doping
- ZnO nanoparticles