Research Article
Solvothermal Synthesis of TiO2 Photocatalysts in Ketone Solvents with Low Boiling Points
Table 2
The effect of different solvents on morphologies, sizes and structures of TiO2 nanostructures.
| | Sample | Composition, % | Morphology | Size, nm | Band gap, eV | FWHMs, ° | Titanate crystallite size, nm |
| | W100 | Titanate (100) | Nanotube | 6-7 | 3.20 | 0.651 | 12.3 | | A100 | Titanate (100) | Nanowire, nanoparticle | 50 (nanoparticle) | 3.36 | 0.784 | 10.2 | | AMEK200 | Titanate (100) | Nanotube, nanowire, and nanoparticle | 6-7 (nanotube) | 3.45 | 0.515 | 15.6 | | MEK100 | Titanate (100) | Nanotube | 6-7 | 3.21 | 0.862 | 9.3 | | MEK200 | Titanate (100) | — | — | 3.22 | 0.787 | 10.2 | | MEK300 | Titanate (100) | — | — | 3.20 | 0.764 | 10.5 | | MEK400 | Titanate (100) | — | — | 3.22 | 0.746 | 10.8 | | MEK500 | Titanate (63.9), anatase (19.1), and rutile (17) | — | — | 3.29 | 0.281 | 28.6 | | TiO2 precursor | Anatase (81), rutile (19) | Nanoparticle | 25 | 3.25 | — | — |
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