Chelated Nitrogen-Sulphur-Codoped TiO₂: Synthesis, Characterization, Mechanistic, and UV/Visible Photocatalytic Studies

Figure 10

Mechanistic transfer pathways of charge carriers in NS-codoped powders under UV and visible light irradiations (a) substitutional doping of nitrogen and sulphur and (b) substitutional doping of sulphur and interstitial doping of nitrogen.

(a)

(b)