摘要
•Core–shell magnetic γ-Fe2O3/SiO2 (M-γFS) was synthesized and characterized.•M-γFS exhibited high adsorption capacity for removing methylene blue (MB) from water.•The effect of different parameters on the adsorption were investigated in detail.•The mechanism was systematically discussed and proposed with kinetics, isotherms and thermodynamics.•The regenerated M-γFS was successfully reused four times.