Fabrication and characterization of Fe3O4@SiO2@TiO2@Ho nanostructures as a novel and highly efficient photocatalyst for degradation of organic pollution

Magnetically retrievable Fe3O4@SiO2@TiO2@Ho nanoparticles with well designed core shell structures and excellent photocatalytic performance for RhB and Mo dyes were successfully prepared. Approximately no decrease in photocatalytic efficiency was observed even after recycling several times. 181