Preparation method of CoTe2atMoS2 composite wave-absorbing material

The invention relates to a preparation method of a CoTe2-at-MoS2 composite wave-absorbing material, which comprises the following steps: dissolving cobalt nitrate hexahydrate and ascorbic acid in deionized water, adding tellurium dioxide, uniformly stirring to obtain a blue suspension, dropwise adding ethanolamine into the blue suspension until a dark red mixed solution is obtained, transferring the dark red mixed solution into a reaction kettle, carrying out hydrothermal reaction at 170-180 DEG C, cooling to room temperature after the hydrothermal reaction is finished, washing, and drying to obtain the CoTe2-at-MoS2 composite wave-absorbing material. The preparation method comprises the following steps: adding a CoTe2 nanomaterial into deionized water, filtering and drying to obtain the CoTe2 nanomaterial, adding the CoTe2 nanomaterial and sodium molybdate dihydrate into the deionized water according to a mass ratio of (0.4-0.5): 1, stirring and dissolving, adding thiourea while quickly stirring, carrying ou