Preparation method of zinc manganate nanosphere material

The invention discloses a preparation method of a zinc manganate nanosphere material, which comprises the following steps: (1) preparing a solution containing solid rhombic dodecahedron ZIF-8 nanoparticles at room temperature by adopting a chemical precipitation method, centrifugally separating and precipitating, washing with absolute ethyl alcohol, and drying to obtain the solid rhombic dodecahedron ZIF-8 nanoparticles; (2) mixing an ethanol solution of the solid rhombic dodecahedron ZIF-8 with an ethanol solution of manganese chloride tetrahydrate, carrying out solvothermal reaction to obtain a solution containing ZnMn2O4 nanospheres, carrying out centrifugal separation and precipitation, washing with absolute ethyl alcohol, and drying to obtain ZnMn2O4 nanosphere particles; and (3) grinding the obtained ZnMn2O4 nanosphere particles, and calcining at high temperature to obtain the zinc manganate nanosphere material with good crystallinity. The method is simple, easy to implement, short in consumed time and