Combined Electro-Fenton and Anodic Oxidation Processes at a Sub-Stoichiometric Titanium Oxide (Ti4O7) Ceramic Electrode for the Degradation of Tetracycline in Water

The mineralization of tetracycline by electrochemical advanced oxidation processes (EAOPs) as well the study toxicity its intermediates and degradation products are presented. Electro-Fenton (EF), anodic (AO), electro-Fenton coupled with (EF/AO) were used to degrade on carbon felt (cathode) a sub-stoichiometric titanium oxide (Ti4O7) layer deposited Ti (anode). As compared EF AO, EF/AO system resulted in highest pollutant removal efficiencies: total organic was 69 ± 1% 68 1%, at 20 ppm 50 initial concentration tetracycline, respectively. effect electrolysis current efficiency, energy consumption, solution investigated for tetracycline. process using Ti4O7 anode CF cathode provides low high efficiency caused production hydroxyl radicals both surface non-active electrode cathodic felt. Complete observed from HPLC data after 30 min optimized conditions 120 mA 210 concentrations. Degradation elucidated, measured luminescence Microtox® bacteria test.