Abstract
Nanoparticles of zinc oxide-doped ceria (3-7 nm diameter) were synthesized by soft solution chemical processes at 40 °C and pH 6. Some zinc ions remained in the solution but cerium ions precipitated completely at pH 6. The solubility limit of ZnO in Ce1-xZnxO2-x was determined to be x = 0.561. The oxidation catalytic activity of ceria effectively decreased by doping with zinc oxide. The photocatalytic activity of undoped ceria and zinc oxide-doped ceria for oxidation of phenol was much smaller than that of titania. Zinc oxide-doped ceria showed excellent UV absorption and transparency in the visible ray region in a similar manner as that of undoped ceria.
| Original language | English |
|---|---|
| Pages (from-to) | 39-44 |
| Number of pages | 6 |
| Journal | Materials Chemistry and Physics |
| Volume | 75 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - 28 Apr 2002 |
| Externally published | Yes |
| Event | ICMAT 2001 Symposium C (Novel and Advanced Ceramics) - Singapore, Singapore Duration: 28 Apr 2002 → … |
Keywords
- Catalytic activity
- Ceria
- Fine powder
- Solid solution
- UV-shielding
- Zinc oxide
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