Abstract With the increasingly serious problem of environmental pollution, the concept of environmental protection has become more and more popular, and green synthesis has attracted many attentions. In view of the situation, we report a novel MoS2@nitrogen doped carbon hybrid decorated with ultrasmall cobalt ferrite nanoparticles(MoS2@n-C@CoFe2O4 hybrid), which was skillfully prepared via one pot green reaction. The whole synthesis process of the hybrid is environmental friendly, and no heavy metal ions remain in the final reaction system. The microstructure, crystal form, chemical elemental composition, surface functional groups, thermal stability and EM wave absorbing performance of the obtained products were systematically investigated. When the calcination temperature is 600 °C, the hybrid performs optimum capability for EM wave. The reflection loss curve suggested that the MoS2@n-C@CoFe2O4-600 hybrid exhibits excellent EM wave absorption performance, with a minimum reflection loss value of −46.7 dB at the specimen thickness of 2.4 mm, which can be attributed to the fair electromagnetic matching, interface polarization, interface relaxation and some other factors.

中文翻译：

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超小钴铁氧体纳米粒子修饰的MoS2@氮掺杂碳杂化物的一锅绿色合成及电磁波吸收性能

摘要 随着环境污染问题的日益严重，环保理念日益普及，绿色合成受到了广泛关注。鉴于这种情况，我们报道了一种新型的 MoS2@氮掺杂碳杂化物，其装饰有超小钴铁氧体纳米粒子（MoS2@nC@CoFe2O4 杂化物），它通过一锅绿色反应巧妙地制备。杂化物的整个合成过程是环保的，最终反应体系中没有重金属离子残留。系统研究了所得产物的微观结构、晶型、化学元素组成、表面官能团、热稳定性和电磁波吸收性能。当煅烧温度为 600 °C 时，混合体对 EM 波具有最佳性能。