Application of Deep Eutectic Solvents (DES) for the Synthesis of Iron Heterogeneous Catalyst: Application to Sulfamethoxazole Degradation by Advanced Oxidation Processes

The development of novel approaches to the remotion pharmaceuticals in wastewater is a subject concern due their effect on living beings and environment. Advanced oxidation processes use relevant catalysts are feasible treatment alternatives that require further development. suitable heterogeneous necessity. This work proposes synthesis an iron catalyst deep eutectic solvent (Fe-DES) composed choline chloride citric acid, which was physically chemically characterized using SEM-EDS TEM, FTIR, RAMAN, XRD XPS. characterisation confirmed presence form hematite. Fe-DES shown be multipurpose can applied removal sulfamethoxazole as reagent Fenton electro-Fenton activator peroxymonosulfate (PMS) processes. After testing with aforementioned techniques, best result achieved by combining these electro-PMS, great efficiency dual activation PMS electric field, attaining total elimination at natural pH 90 min. Furthermore, degradation detection short-chain carboxylic acids (oxalic, succinic, acetic) reduction toxicity values. These results confirm suitability degrade high-priority pharmaceutical compounds.