Fig. 2: Different Fenton processes.

(a) Illustration of Fenton mechanism, (b) Fenton set-up, (c) Photo-Fenton set-up, (d) Photo-Electro-Fenton device, and (e) Electro-Fenton set-up.

(a) Illustration of Fenton mechanism, (b) Fenton set-up, (c) Photo-Fenton set-up, (d) Photo-Electro-Fenton device, and (e) Electro-Fenton set-up.