Mn2AlB2-derived manganous-manganic oxide material as well as preparation method and application thereof

The invention relates to the technical field of materials, in particular to a Mn2AlB2-derived manganous-manganic oxide material as well as a preparation method and application thereof. The preparation method comprises the following steps: by taking Mn2AlB2 as a raw material, synthesizing nano-enzyme Mn3O4 by adopting a sodium hydroxide etching method; wherein the etching reaction temperature is 165 DEG C. The nano-enzyme Mn3O4 is synthesized by adopting a sodium hydroxide etching method, the process is simple, the energy consumption is low, and the synthesized Mn3O4 is high in purity, complete in crystal structure, relatively good in crystal form and free of impure phases. The prepared Mn3O4 nano-enzyme has good oxidase simulation activity, high stability and good catalytic activity, and is successfully used for detection of ascorbic acid. 本发明涉及材料技术领域，具体涉及一种Mn2AlB2衍生的四氧化三锰材料及其制备方法与应用。制备方法以Mn2AlB2为原料，采用氢氧化钠刻蚀法合成纳米酶Mn3O4；其中，刻蚀反应温度为165℃。本发明采用氢氧化钠刻蚀法合成纳米酶Mn3O4，工艺简单，能耗低，合成的Mn3O4纯度高、晶体结构完整、晶形较好，没有杂相。所制备的Mn3O4纳米酶具有良