Abstract
The low effectiveness and poor endurance of the electrodes prevent electrocatalytic oxidation from being widely used to treat organic chemicals in wastewater.Here, the coating pyrolysis process was used to successfully create a Ti/SnO2-Sb containing an interlayer of RuO2. The Ti/RuO2/SnO2-Sb surpassed the conventional Ti/SnO2-Sb in both electrocatalytic activity and electroactive surface area. The Ti/RuO2/SnO2-Sb have higher oxygen evolution potential(OEP), better coverage, lower resistance, and less energy consumption with the introduction of RuO2 interlayer. Moreover, the Ti/RuO2/SnO2-Sb exhibited 1.88 times the rate constant of chemical oxygen demand(COD) degradation in caprolactam wastewater furthermore a 25 times rise in service life over conventional Ti/SnO2-Sb.
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