Recent Developments in Homogeneous Advanced Oxidation Processes for Water and Wastewater Treatment

Table 1

The oxidation potential of various reactive species.

Substance	Potential (V)
Hydroxyl radical (^∙OH)	2.86
Oxygen (O)	2.42
Ozone molecule (O3)	2.07
Hydrogen peroxide (H2O2)	1.78
Chlorine (Cl2)	1.36
Chlorine dioxide (ClO2)	1.27
Oxygen molecule (O2)	1.23