Review Article
in the Surface of Titanium Dioxide: Generation, Properties and Photocatalytic Application
Table 1
The data of EPR signals assigned to Ti3+ in some published paper.
| ESR parameters (g-value) | Condition | Ref. | | | | |
| 1.9495 | 1.9640 | Anatase nanoparticles exposure to UV light | [33] | 1.9600 | 1.990 | Anatase nanoparticles exposure to UV light | [33] | 1.902 | 1.953 | Laser-irradiated TiO2 | [39] | 1.962 | 1.960 | Titanium silicalite | [49] | 1.905 | 1.912 | Ti-SiO2 by a sol-gel method | [49] | 1.88 | 1.925 | Fe3+-doped colloids: 6 g dm−3 TiO2, 0.5 wt% Fe, irradiated 6 h | [54] | 1.988 | 1.897 | Fe3+-doped colloids: 5 g dm−3 TiO2, 0.1 wt% Fe, irradiated 3 h | [54] | 1.975 | 1.944 | Self-doped TiO2 | [78] | 1.996 | 1.901 | KTa0.9Nb0.1O3 | [80] | 1.994 | 1.896 | Hydrated TiO2 | [81] | 1.9482 | 1.9707 | Carbon-doped TiO2 | [82] | 1.975 | 1.963 | Ultrafine-powdered TiO2 | [83] |
| 1.996 | TiO2 powder was heated in hydrogen (H2) gas | [20] | 1.990, 1.990, 1.960 | Hydrated anatase | [32] | 1.970, 1.965 | The untreated fresh and used TiO2 catalysts | [51] | 1.93 | TiO2 exposure to flowing H2 at 573 K for 4 h | [53] | 1.908, 1.981 | Pt/TiO2 reduced at 623 K | [56] | 1.975 | sol-gel processing of Ti(i-OPr)4 (i-OPr isopropoxy group) | [69] | 1.92 | Anatase reduction at 573 K | [75] | 1.9605, 2.0059 | Nitrogen-doped TiO2 | [76] | 1.996 | TiO2 calcined at 21% O2 | [84] | 1.98 | TiO2 nanotubes | [85] | 1.996 | TiO2 obtained under vacuum | [86] | 1.964 | Silver/TiO2 (1.026 wt.% loading) | [87] | 1.9880 ± 0.0005 | Carbon-Doped TiO2 | [88] | 1.996 | Nanocrystalline TiO2 via solvothermal synthesis | [89] |
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