Review Article

Increase of the Photocatalytic Activity of T i O 𝟐 by Carbon and Iron Modifications

Figure 3

Partial geometry of the models for: (a) one substitutional C atom to O (CS-O), (b) one substitutional C atom Ti (CS-Ti), (c) one interstitial C atom (CI), and (d) one interstitial C atom nearby an oxygen vacancy (CI + VO) in the anatase TiO2 supercell; the yellow spheres represent O atoms, the small brown spheres represent Ti atoms, and the black represents the carbon impurity.
721824.fig.003a
(a)
721824.fig.003b
(b)
721824.fig.003c
(c)
721824.fig.003d
(d)