NiCuxFe2-xO4, oxygen vacancies, d-band center regulation, peroxymonosulfate activation, interfacial ROS generation
N-doped NiFe2O4, Peroxymonosulfate, reactive oxygen species, Oxygen vacancy, Degradation mechanism
catalytic ozonation, Fe2O3/SBA-15, interface behaviors, hydroxyl radicals, synergistic effect