Enhanced magnetic separation and photocatalytic activity of nitrogen doped titania photocatalyst supported on strontium ferrite

► A improved ferromagnetic property, visible light absorption N-TiO2 was prepared by strontium ferrite as support. ► The supported N-TiO2 had a strong ferromagnetic properties with coercivity 4187.2G, mass recovery ∼98%. ► The supported N-TiO2 resulted in a lower band gap energy (∼2.8 eV). ► Complete degradation of 2,4-DCP was achieved in shorter duration under both bright, diffused sunlight irradiation.