Fe3O4@BC nanocomposite material as well as preparation method and application thereof

The invention discloses a Fe3O4@BC nanocomposite material as well as a preparation method and application thereof, belonging to the technical field of composite materials. According to the preparation method, natural magnetite and biomass charcoal are subjected to ball milling in a high-energy ball mill to prepare the Fe3O4@BC nanocomposite material. A mechanochemical method is a simple physical method which is simple in process, high in efficiency and low in cost, the materials are mixed in a ball milling mode, the particle size of the materials is reduced to nanoscale, and therefore, the multiple metal@carbon nanocomposite catalytic material is synthesized. The degradation rate of the nanocomposite material to the azo dye AO7 can reach 100% within 2 hours of reaction. 本发明公开了一种Fe3O4@BC纳米复合材料及其制备方法和应用，属于复合材料技术领域。该制备方法为将天然磁铁矿与生物质炭在高能球磨机中通过球磨制备Fe3O4@BC纳米复合材料。机械化学法是一种简单的物理方法，工艺简单，效率高且成本低，利用球磨的方式将材料混合并将材料的粒径减小到纳米级，以此合成多种金属@碳纳米复合催化材料。该复合材料反应2h内，对偶氮染料AO7的降解率可以达到100％。