fig5
![Solid-state NMR of active sites in TiO<sub>2</sub> photocatalysis: a critical review](https://image.oaes.cc/aee4ec06-4c22-4959-90f1-d08b90ca3a45/cs4012.fig.5.jpg)
Figure 5. 47/49Ti MAS NMR spectra. (Left) pristine TiO2 samples are examined as prepared, and after heating at 400 and 500 °C. (Right) V2O5-loaded TiO2 samples were examined under identical conditions. Reproduced with permission from[96]. Copyright 2015, Elsevier. MAS: Magic angle spinning; NMR: nuclear magnetic resonance.