Preparation method of biomass carbon quantum dots taking yolk as carbon source

The invention discloses a preparation method of biomass carbon quantum dots with yolk as a carbon source, which comprises the following steps: adding eggs into H2O, heating the water, separating egg white and yolk, pulverizing the yolk with a mortar, and drying the yolk to obtain yolk powder; carrying out hydro-thermal treatment on the yolk powder to obtain a hydro-thermal product; and carrying out passivation treatment on the hydrothermal product, filtering, pre-cooling, and carrying out freeze drying to obtain the biomass carbon quantum dot. According to the invention, the yolk is used as a carbon source, and the biomass carbon quantum dots are obtained through hydrothermal carbonization and passivation enhancement. In addition, the method is wide in raw material source, simple in preparation process, low in equipment cost, novel, green and environment-friendly. 本发明公开了一种以蛋黄为碳源的生物质碳量子点的制备方法，具体为：将鸡蛋加入H2O中进行加热，之后分离蛋白和蛋黄，将蛋黄使用研钵碾碎，干燥，得到蛋黄粉末；之后将蛋黄粉末进行水热处理，得到水热产物；再将水热产物进行钝化处理，过滤后预冷，最后再进行冷冻干燥，即可得到生物质碳量子点。使用蛋黄作为碳源，