This present study aims to reveal the performance of Ti/Ni-Sb-SnO2 in limiting oxygen evolution and increasing electrochemical O3 production (EOP) and phenol removal. First, the effect of important variables such as current density (CD), charge passed and electrolyte type on the modified electrodes was investigated. Then, phenol removal by Ti/Ni-Sb-SnO2 was studied using the effect of CD, retention time and phenol concentration. The results revealed that for building the electrodes of Ti/Ni-Sb-SnO2, CD of 3.9 mA/cm2 and passed charge of 180 mC were obtained. The performance of ozone generation in HClO4 is by far more than that of H3PO4, H2SO4 and HCl. At the initial concentration of 1, 3, 6 and 10 mM, phenol was decomposed by 99.9% approximately in current densities of 61.5, 76.9, 92.3 and 123.1 mA/cm2 and contact time of 150, 250, 350, and 400 minutes. respectively.
