Nitrogen-doped iron carbide/carbon nano enzyme as well as preparation method and application thereof

The invention discloses nitrogen-doped iron carbide/carbon nano enzyme as well as a preparation method and application thereof, and belongs to the technical field of analytical chemistry. According to the technical scheme, m-phenylenediamine and ferric salt are dispersed into a solvent and stirred, iron-doped poly (m-phenylenediamine) is obtained, then the iron-doped poly (m-phenylenediamine) is calcined in an inert atmosphere, and nitrogen-doped iron carbide/carbon nano-enzyme is obtained. The synthesis method is simple, efficient and convenient for large-scale production; and the synthesized nano enzyme has high activity, low detection limit on L-cysteine, and extremely high application value. 本发明公开了一种氮掺杂的碳化铁/碳纳米酶及其制备方法和应用，属于分析化学技术领域。其技术方案为：将间苯二胺、铁盐分散到溶剂中，搅拌，得到铁掺杂的聚间苯二胺，随后在惰性气氛下对其进行煅烧，得到氮掺杂的碳化铁/碳纳米酶。本发明合成方法简单、高效，便于大规模生产；合成的纳米酶具有较高活性，对L-半胱氨酸的检测限低，具有极高的应用价值。