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- W4386074709 abstract "A nonradical oxidation-based peroxymonosulfate (PMS) activation is an attractive process for pollutant elimination. Herein, a dual-metal-organic framework (MOF) assisted strategy to construct magnetic Fe-Mn oxycarbide anchored on N-doped carbon (FeMn@NC) was proposed for PMS activation. It was found that FeMn@NC-800 displayed superior activity than other comparable counterparts, with nearly 100% degradation of sulfamethazine (SMZ) within 30 min. Electron paramagnetic resonance and quenching tests revealed that nonradical oxidation (1O2 and high-valent metal-oxo species) dominated the SMZ degradation process. Experimental and theoretical calculations demonstrated that FeMn oxycarbide preferred adsorbing the terminal O of PMS, which could improve the PMS oxidization to produce SO5•−, further generating 1O2. Moreover, dual active sites could lower the energy barrier to cleave the O−O bond of PMS to form high-valent FeMn＝O species. The present study provided a clue to rationally design high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning." @default.
- W4386074709 created "2023-08-23" @default.
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- W4386074709 date "2024-01-01" @default.
- W4386074709 modified "2023-10-17" @default.
- W4386074709 title "Fe-Mn oxycarbide anchored on N-doped carbon for enhanced Fenton-like catalysis: Importance of high-valent metal-oxo species and singlet oxygen" @default.
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- W4386074709 doi "https://doi.org/10.1016/j.apcatb.2023.123204" @default.
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