Urchin-like Co3O4 as a heterogenous peroxymonosulfate catalyst for crystal violet degradation: Reaction kinetics and process optimization

Ultra-small Co3O4 particles embedded into N-doped carbon derived from ZIF-9 via half-pyrolysis for activating peroxymonosulfate to degrade sulfamethoxazole

“…14,15 Among them, Co 3 O 4 has been demonstrated to be more favorable for PMS activation, resulting from the co-existence of Co 2+ and Co 3+ in the crystal structure. 16,17 The mixed valence characteristic makes the Co site efficiently take part in the redox process without structural change. However, Co 3 O 4 always demonstrates sphere or cluster morphology, which has defects of low dispersibility and large particle size, leading to a dissatisfied performance.…”