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| Sample | TiO2NT crystallite size (nm) | Surface area (m2 g−1) | Pore volume (cm3 g−1) | Half pore width (Å) | Band gap (eV) |
|---|---|---|---|---|---|
| AC | — | 634 | 0.401 | 8.0 | — |
| Pure TiO2NTs | 9.27 | 56 | 0.014 | 13.8 | 3.12 |
| TiO2NT–AC(1) | 6.31 | 127 | 0.020 | 8.4 | 3.08 |
| TiO2NT–AC(2) | 6.32 | 159 | 0.023 | 8.4 | 3.08 |
| TiO2NT–AC(3) | 7.49 | 204 | 0.036 | 8.4 | 3.07 |
| TiO2NT–AC(4) | 15.07 | 291 | 0.045 | 8.4 | 3.01 |
