Novel and Green Synthesis of Nitrogen-Doped Carbon Cohered Fe3O4 Nanoparticles with Rich Oxygen Vacancies and Its Application

A one-pot and green synthesis methodology was successfully designed to prepare nitrogen-doped carbon (NC) cohered Fe3O4 nanoparticles with rich oxygen vacancies (Fe3O4-OVs/NC). The preparation achieved via cold-atmospheric-pressure air plasma using Fe2O3 as the only precursor, pyridine nitrogen source. Systematic characterization results of as-prepared Fe3O4-OVs/NC confirmed transition from Fe3O4, along generation vacancies, while preserving original needle-like morphology Fe2O3. Moreover, indicated formation NC attaching surface formed a weight percent ~13.6%. synthesized nanocomposite further employed heterogeneous Fenton catalyst remove phenol an aqueous solution. material has shown excellent catalytic activity stability, demonstrating promising application for wastewater treatment.