Tailored Metal-Oxygen Interface Engineering of Self-Assembled CoMn Spinel Nanocatalysts for Singlet Oxygen-Mediated Peroxymonosulfate Activation and Pollutant Degradation.

ABSTRACT: Cobalt-based heterogeneous catalysts have emerged as high-performance activators of peroxymonosulfate (PMS) for advanced oxidation processes targeting pharmaceutical contaminants. This work presents a morphology-engineered spinelloid phase (g-CoMn₂O₄) synthesized through a glycerol-modulated crystallization strategy, exhibiting a 3D hierarchical nanofloral architecture with enhanced interfacial active sites. Remarkable tetracycline (TC) degradation efficiency of 98.90% was achieved within 10 min (k = 1.19 min^-1), representing a 3.6-fold enhancement in degradation capacity and a 21.5-fold acceleration in reaction kinetics compared with pristine PMS systems. Atomic-level characterization revealed that Mn³⁺/Mn⁴⁺ doping optimizes el

SUBMITTER: Zhang X 

PROVIDER: S-EPMC12290703 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature