Cyclic voltammetry tool for assessing electrochemical degradation of diclofenac

The cyclic voltammetry (CV) experiments were carried out in order to assess the
electrochemical degradation of diclofenac (DCF) at dimensionally stable anodes (DSA). The
working electrode was a boron-doped diamond (BDD) electrode and electrolysed solutions of
DCF in 0.1 M Na2SO4 supporting electrolyte were used. The electrolysed solutions were
obtained previously in the electrochemical degradation of DCF at DSA electrodes,
Ti/RuO2-TiO2 and Ti/RuO2/SnO2-Sb2O5-RuO2, at various current densities and 120 minutes of
electrolysis. The peak current abatement efficiency was calculated based on cyclic
voltammograms (CVs) and the most efficient composition of DSA for DCF degradation was
designated.