Electrochemical Advanced Oxidation of Carbamazepine: Mechanism and optimal operating conditions

Effective electrochemical degradation of carbamazepine (CBZ) in water was accomplished with minimal energy and chemical requirements, showing that Advanced Oxidation Processes (eAOPs) a Boron-Doped Diamond (BDD) anode are promising method for the situ contaminants emerging concern (CECs). The influence several operating parameters (i.e., pH, temperature initial anolyte pollutant concentrations) determined through Taguchi optimization method. Optimal conditions corresponded to 1 ?M CBZ, pH 2, 30 °C, 10 mM Na2SO4 50 A m?2, resulting complete CBZ removal less than 5 min. Complementary scenarios different ion species, sources current densities further corroborated suitability optimum. Moreover, they revealed optimal were driven by presence both SO42? NO3? ions solution. Hence, results also attained when replacing HNO3 NaNO3, which allowed operate without prior adjustments. contribution •OH SO4•? radicals studied scavenging tests it first time tentatively ascribed Oxygen Evolution Reaction (OER), since selection potential influences type oxidative species present. Finally, primary transformation products formed during under investigated.