The link between the electrochemical behaviors of pollutants with band positions and activity of photocatalysts are correlated.
The mechanism of photocatalytic reaction is expatiated from a viewpoint of photo-induced electrocatalysis.
A semiconductor photo-induced electrocatalysis model for the photodegradation of organic pollutants is established.
By using the energy (or potential) viewpoint, the photocatalysis reactions can be easily predicted, designed, and selected.