Valorization of manganese residue to prepare a highly stable and active Fe3O4@SiO2/starch-derived carbon composite for catalytic degradation of dye waste water

To effectively dispose and utilize the manganese residue, a novel manganese residue-based catalyst, mechanical activation-pretreated manganese residue-derived Fe3O4@SiO2/starch-derived carbon composite, was prepared by pre-oxidation of manganese residue and reduction roasting of mechanical activation pretreated manganese residue-starch mixture. In addition, manganese residue-derived Fe3O4@SiO2/starch-derived carbon composite without mechanical...