Weakening the Mn-O-Si Interaction via Carbon Intercalation for the Enhanced Catalytic Ozonation of Refractory Pollutants in Environmental Matrices.

ABSTRACT: The strong metal-support interaction (MSI) has been widely attributed to enhanced catalytic activity. However, this attribution might be wrong in catalytic ozonation, since MSI that is too strong might impede the activation of electron-poor ozone molecules. Herein, we reported a strategy to subtly modulate the Mn-O-Si interaction by intercalating the carbon film between the silica support and active manganese oxide. When using MnO_x/0.5C/SiO₂ with the moderate MSI as a catalyst in the catalytic ozonation of refractory paracetamol (PCM), 91.1 ± 2.4% of PCM was removed within 30 min, about 30% higher than that using the catalyst of MnO_x/SiO₂ with a strong MSI. Moreover, the reaction rate reached 8.01 × 10^-2 min^-1,

SUBMITTER: Huang H 

PROVIDER: S-EPMC11874039 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature