The invention discloses a one-dimensional iron-based wave-absorbing material derived from a
metal organic framework, and a preparation method thereof, and belongs to the technical field of
microwave absorbing materials. A one-dimensional
metal organic framework (Fe-bdc) is used as a precursor, and a process of air oxidation and
hydrogen reduction is adopted, so that the content and morphology of
magnetic components in the derived one-dimensional iron-based wave-absorbing material are regulated and controlled, optimization of electromagnetic parameters is promoted, and effective absorption of
broadband electromagnetic
waves is realized under the condition of low thickness. From the aspect of components, non-
magnetic components are effectively removed in the
oxidation process, and the content of each magnetic component can be effectively adjusted in the reduction process. From the aspect of the structure, the one-dimensional bead-shaped structure has relatively strong shape
anisotropy, can promote the formation of a magnetic conductive path and a conductive path, and is beneficial to enhancing the electromagnetic attenuation capability. The effective
absorption frequency band of the one-dimensional iron-based wave-absorbing material can reach 3.52 GHz under the condition that the thickness is only 1.2 mm, and the one-dimensional iron-based wave-absorbing material shows excellent low-thickness and
broadband wave-absorbing characteristics. The method does not need complex equipment, the cost is low, and the product consistency is high.