PFOA has been manufactured for emulsifying agent in polytetrafluoroethylene synthesis and surface treatment agent in water and stain coating, oxidative protective coating, and non-stick coating. PFOA has been detected in wastewater, groundwater, and surface water due to its environmental persistence. PFOA is chemically stable due to the strong strength of C-F bonds (C2F5–F of 127 kcal/mol, F+eˉ→ Fˉ, E0=3.6 V), and cann’t be degraded by conventional wastewater treatments. Researchers developed various treatment methods to decompose PFOA, including activated carbon adsorption, photocatalysis, direct UV photolysis, UV-KI photolysis, reductive defluorination with zerovalent iron in subcritical water, ultrasonic irradiation, electrochemical oxidation etc. This study aIMSto investigate the electrochemical degradation of PFOA using BDD electrode. The effects of potential and applied current density were examined.
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