标题：Ti/RuO<sub>2</sub>-IrO<sub>2</sub>-SnO<sub>2</sub> Anode for Electrochemical Degradation of Pollutants in Pharmaceutical Wastewater: Optimization and Degradation Performances
摘要：Electrochemical oxidation technology is an effective technique to treat high-concentration wastewater, which can directly oxidize refractory pollutants into simple inorganic compounds such as H<sub>2</sub>O and CO<sub>2</sub>. In this work, two-dimensionally stable anodes, Ti/RuO<sub>2</sub>-IrO<sub>2</sub>-SnO<sub>2</sub>, have been developed in order to degrade organic pollutants from pharmaceutical wastewater. Characterization by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD) showed that the oxide coating was successfully fabricated on the Ti plate surface. Electrocatalytic oxidation conditions of high concentration pharmaceutical wastewater was discussed and optimized, and the best results showed that the COD removal rate was 95.92% with the energy consumption was 58.09 kW·h/kgCOD under the electrode distance of 3 cm, current density of 8 mA/cm<sup>2</sup>, initial pH of 2, and air flow of 18 L/min.
