Table 1.
Phase composition, average primer crystallite sizes, band gaps, and specific surface areas of the investigated samples.
| Sample Name | Crystalline composition (%) |
CTO Crystallite Size (nm) | Specific Surface Area (m2 g−1) | Band Gap (eV) | |||
|---|---|---|---|---|---|---|---|
| CTO | Anatase | Rutile | Brookite | ||||
| CTO_RHSE_650 | >79.6 | 11.3 | <1 | 8.1 | 25.0 | 51.7 | 3.71 |
| CTO_RHSE_700 | >85.1 | <1 | 5.9 | 8.0 | 33.4 | 38.4 | 3.70 |
| CTO_RHSE_800 | 86.3 | – | 13.7 | – | 38.7 | 23.5 | 3.70 |
| CTO_RHSE_900 | 88.6 | – | 11.4 | – | 47.7 | 13.5 | 3.69 |
| CTO_RHSE_1000 | 90.3 | – | 9.7 | – | 50.7 | ∼2.2 | 3.68 |
| CTO_Ref | >99 | – | – | – | 58.1 | 3.3 | 3.63 |