fig12
![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.12.jpg)
Figure 12. Summary of the electronic effect (chemical shift) imposed by different adsorbates during sequential treatments/modifications on (A) TiO2 PD, (B) F-capped (101) facet [F-(101)], and (C) F-capped (001) facet [F-(001)]; (D) Illustration of interaction between TMP and surface features on TiO2 facet with various treatments/modifications; (E) The summary of 31P chemical shift of TMP-adsorbed Ti5C on (001)/(101) facets with different treatments and modification. Reproduced with permission from[164]. Copyright 2017, Springer Nature. PD: powder; TMP: trimethylphosphine.