Engineering a gold( iii )-modified cathode for electro-Fenton degradation of ciprofloxacin: linking structure, reactivity, and detoxification

O, and inorganic ions. The superior performance of the system is attributed to the synergistic interaction between the BDD anode and the Au-modified cathode, which facilitates interfacial electron-transfer processes and enhances the utilization of Electro-generated oxidizing species. Overall, this study demonstrates that structurally engineered gold(iii) coordination complexes constitute promising cathodic modifiers for next-generation Electro-Fenton systems and provide an efficient and sustainable strategy for the remediation of pharmaceutical contaminants in aquatic environments.