Research Article
Preparation of Fluorine-Doped Photocatalysts with Controlled Crystalline Structure
Table 1
Phase content W (%) and average diameter (nm) of the crystallites in the TiO2 powders calcinated at different temperatures (A: Anatase, R: Rutile).
| | Nominal name | Calcination temperatures |
| | 400°C | 500°C | 600°C | | W (%) | (nm) | W (%) | (nm) | W (%) | (nm) |
| | TF0 | A:100 | 8.5 | A:100 | 12.0 | A:100 | 18.0 | | F/Ti = 0 | | TF10 | A:72.5 | 10.5 | A:45.7 | 21.5 | A:9.3 | 15.5 | | F/Ti = 10/90 | R:27.4 | 10.6 | R:54.3 | 20.8 | R:90.7 | 20.8 | | TF20 | A:9.1 | 10.2 | R:100 | 14.1 | R:100 | 36.1 | | F/Ti = 20/80 | R:90.9 |
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