Valorization of ball-milled waste red mud into heterogeneous catalyst as effective peroxymonosulfate activator for tetracycline hydrochloride degradation

Co-based MOF as an efficient catalyst by peroxymonosulfate activation for degradation of tetracycline: synthesis and performance

“…Among other radicals (OH˙, O 2 ˙ − ), sulfate radicals (SO 4 ˙ − ) have a higher standard redox potential (2.5–3.1 eV) and wider adaptability range of pH, which have aroused great interest. 9–11 Compared to other methods (ultraviolet light, heat), transition metal activation (Co 2+ , Fe 2+ , and Mn 2+ ) has the advantage of being effective and controllable, and thus is widely used in activating PMS. 12–16 In particular, Co 2+ shows excellent catalytic performance for PMS due to its standard redox potential (1.82 V) being very close to that of PMS (1.75 V).…”