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Department of Chemistry, Pusan National University, Busan 609-735, KoreaReceived February 23, 2012, Accepted April 11, 2012To test the efficiency of the BDD electrode for complete mineralization of organic wastewater, phenol and 2-chlorophenol (2-CP) were treated electrochemically with both an active Pt/Ti electrode and a nonactive borondoped diamond (BDD) electrode, respectively, in neutral aqueous medium. Aqueous solutions of both phenoland 2-chlorophenol were treated electrochemically using an in-house fabricated flow through electrochemicalcell (FTEC). The experimental variables included current input, treatment time, and the flow rate of thesolutions. Depending on the magnitude of the applied current and reaction time, the compounds were eithercompletely degraded or partially oxidized to other intermediates. Removal efficiencies reached as high as93.2% and 94.8% both at the Pt/Ti electrode and BDD electrode, respectively, at an applied current of 200 mAfor a 3.0 hr reaction and a flow rate of 4 mL/min. The BDD electrode was much more efficient for the completemineralization of phenol and 2-chlorophenol than the Pt/Ti electrode.Key Words : Electrochemical degradation, Phenol, Pt/Ti electrode, Boron doped diamond electrodeIntroductionThe removal of organic contaminants from organic waste-water by electrochemical treatment has been a subject ofgreat interest because large amounts of chemicals need notbe added to wastewater or to feed O

Electrochemical Degradation of Phenol and 2-Chlorophenol Using Pt/Ti and Boron-Doped Diamond Electrodes