Manganese oxide and derivative-modified materials in advanced oxidation processes: A review of modification enhancement and activation mechanisms

Correlating active sites and oxidative species in single-atom catalyzed Fenton-like reactions

“…In contrast, the heterogeneous Fenton-like catalysts address these issues by their improved stability and easy separation. 19–21 In particular, some metal-based heterogeneous catalysts, such as nano-metal oxides, metal nanoparticles (NPs), and metal single-atom catalysts (SACs), have attracted increasing attention in Fenton-like reactions due to their superior activities. 22–24 However, the confined surface locations of metal active centers in heterogeneous NP catalysts result in inferior catalytic efficiency compared with their homogeneous counterparts, suffering from low metal atom utilization efficiency because of agglomeration of metal atoms and embedding in the bulk of NP catalysts.…”