Increase of the Photocatalytic Activity of 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.