Table 3 Band gap values calculated by Kubelka–Munk equation of diffuse reflectance spectra and OH/Otot, Ti*/Ti4+by XPS analysis for all samples
From: Photodegradation of Pollutants in Air: Enhanced Properties of Nano-TiO2Prepared by Ultrasound
Sample | Band gap, eV | Ti*/Ti4+ | OH/Otot |
|---|---|---|---|
T | 3.19 | – | 0.17 |
T_300 | 3.20 | – | 0.12 |
TP0.5on49W | 3.13 | – | 0.29 |
TP0.5on84W | 3.16 | – | 0.26 |
TP0.9on49W | 3.18 | – | 0.21 |
TC9W | 3.42 | 0.87 | 0.27 |