preparation and characterization of rapid magnetic recyclable fe3o4@sio2@tio2–sn photocatalyst

Effective procedure to synthesize fe3o4@sio2@tio2–sn magnetically separable photocatalyst by a combination of co-precipitation, sol–gel and photodeposition methods was introduced. products were characterized by xrd, sem, vsm, eds, drs, tem, icp-oes and ir techniques. the dimensions of catalyst particle size were evaluated by scanning electron microscopy, and results approved nanoscale size for product. in addition, studying the magnetic nature by vsm analysis showed superparamagnetic properties for all samples. xrd pattern indicates that tio2 coated on fe3o4@sio2 core well crystallized at 400 °c in anatase phase. synthesized photocatalyst shows good photocatalytic performance in decolorization of rhodamine b aqueous solution. the composite nanoparticles showed high recycling efficiency and stability over five separation cycles.