Nanosized Co3O4/SiO2 for heterogeneous oxidation of phenolic contaminants in waste water

▶ Nanosized Co/SiO2 exhibits high activity in activation of peroxymonosulphate. ▶ Co precursors affect the properties of Co/SiO2. ▶ Co/SiO2 from nitrate precursor presents high efficiency for phenol degradation. ▶ Stability of Co/SiO2 is higher than other systems.