High efficiency microwave absorption (MA) materials with tunable electromagnetic (EM) features have been highly sought. However, it is still a challenge to achieve multi-bands absorption performance by simple optimizing the chemical composition of MA materials. Herein, a simple solvothermal method was used to embed magnetic Fe₃O₄ nanoclusters on MoS₂ nanosheets, in which magnetic nanoclusters were quantitatively customized. More importantly, the MA frequency and MA properties of the material are highly tailored, and multi-bands absorption is achieved. The minimum reflection loss (RL) of Fe₃O₄/MoS₂ composite reaches −87.24 dB and is about 4 times more than pure MoS₂ nanosheets. The effective absorption bandwidth reaches 5.52 GHz (≤-10 dB). These desirable properties result from the introduction of appropriate magnetic Fe₃O₄ nanoclusters, which provide optimal synergistic effect of dielectric and magnetic losses. This result provides a feasible idea for designing high efficiency MA materials with tunable EM features in the future.

具有可调谐电磁 (EM) 特性的高效微波吸收 (MA) 材料一直备受追捧。然而，通过简单优化MA材料的化学成分来实现多波段吸收性能仍然是一个挑战。在此，使用简单的溶剂热法将磁性Fe ₃ O ₄纳米团簇嵌入到MoS ₂纳米片上，其中磁性纳米团簇是定量定制的。更重要的是，材料的MA频率和MA特性经过高度定制，实现了多波段吸收。_{Fe 3} O ₄ /MoS ₂复合材料的最小反射损耗（RL）达到-87.24 dB，约为纯MoS ₂的4倍纳米片。有效吸收带宽达到5.52 GHz（≤-10 dB）。这些理想的特性是由于引入了合适的磁性 Fe ₃ O ₄纳米团簇，它提供了介电和磁损耗的最佳协同效应。该结果为未来设计具有可调电磁特性的高效MA材料提供了可行的思路。