fig16
![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.16.jpg)
Figure 16. 2D 11B 3QZ-FAM MAS NMR spectra (sheared) of (A) 10% B-doped and (B) (B, Ag)-codoped TiO2 samples. 2D 11B DQ MAS NMR spectra of (C) 10% B-doped and (D) (B, Ag)-codoped TiO2 samples. Possible Boron Species in B-doped and (B, Ag)-codoped TiO2 were shown at the bottom. Reproduced with permission from[202]. Copyright 2013, American Chemical Society. 2D: Two-dimensional; FAM: fast amplitude-modulated; MAS: magic angle spinning; NMR: nuclear magnetic resonance; DQ: double-quantum.