Novel application of manganese nodule and preparation method of layered intercalated ferrite composite material

The invention discloses a novel application of manganese nodule and a preparation method of a layered intercalated ferrite composite material. The preparation method comprises the following steps of firstly, using oceanic manganese nodule primary ore as raw materials, and using a strong oxidizing agent, persulfate and other reagents to process to synthesize a manganese nodule layered minerals; performing organic modification on the synthesized layered minerals to prepare modified layered minerals; uniformly mixing a ferrite precursor and an alcohol substances to prepare slurry, and mixing themodified layered minerals with the slurry, enabling the ferrite precursor to be introduced between the layered minerals, and performing hydrolysis and calcining to obtain the layered intercalated ferrite composite material. According to the method disclosed by the invention, by utilizing the interlayer confinement effect of the manganese nodule layered minerals, the grain diameter of the ferrite is reduced, the agglomerat