Abstract
The ultrasonic method is used to synthesize titanium oxide nanocrystals. Productions with different crystal-structure are generated by calcination at different high temperature. The silane-coupling reagent is used to construct a stable absorbance of eosin on TiO2. The results of Uv-Vis diffraction spectrum indicate that the bandgaps for anatase-production and mixed-structure-productions are 2.1 eV and 2.0 eV respectively. But the eosin sensitized TiO2 with mixed-structure has no activity in triethanolamine water solution because of small surface areas, while the anatase-structure photocatalyst has a comparatively high activity. It has an apparent quantum efficiency of 2.32% at 420 nm and 2.86% at 480 nm.
| Original language | English |
|---|---|
| Pages (from-to) | 900-903 |
| Number of pages | 4 |
| Journal | Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University |
| Volume | 42 |
| Issue number | 7 |
| State | Published - Jul 2008 |
Keywords
- Photocatalytic water splitting
- Sensitized
- TiO
