Fig. 1

Generation of (a) H₂O₂ in EO and (b) •OH in EF over 60 min at pH 3, 7, and 8.5 with a CD of 10 mA cm.⁻² (Anode: BDD, Cathode: Graphite felt, 20 mM Na₂SO₄, 3 mM FeSO₄ in EF)