Research Article
Nb-Doped TiO2 Photocatalysts Used to Reduction of CO2 to Methanol
Table 1
Anatase/rutile percentages and unit cell parameters calculated for the powders.
| | Photocatalyst (% Nb (w/w)) | Percentage | Cell parameter | | Anatase | Rutile | Cell volume (Å3) | | Anatase | Rutile | a | b | c | a | b | c | Anatase | Rutile |
| | Nb–TiO2 0.0 | 91.76 | 8.24 | 3.770 | 3.770 | 9.477 | 4.580 | 4.581 | 2.951 | 134.74 | 61.95 | | Nb–TiO2 0.5 | 94.90 | 5.10 | 3.762 | 3.762 | 9.445 | 4.582 | 4.582 | 2.952 | 133.70 | 61.99 | | Nb–TiO2 1.0 | 97.74 | 2.26 | 3.760 | 3.760 | 9.446 | 4.589 | 4.589 | 2.943 | 133.58 | 62.00 | | Nb–TiO2 2.5 | 98.27 | 1.73 | 3.759 | 3.759 | 9.446 | 4.581 | 4.581 | 2.955 | 133.53 | 62.04 |
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