Degradation of dipyrone via advanced oxidation processes using a cerium nanostructured electrocatalyst material

- CeO2/C 4% GDE produced 331 mg L−1 of H2O2 while Vulcan carbon produced 108 mg L−1.
- Ce(III) and Ce(IV) species in similar concentration facilitated the formation of H2O2.
- Electro-Fenton process mineralized 57% of the dipyrone in 5 min at −1.1 V.