Method for preparing fluorescent carbon quantum dots by taking short-chain volatile fatty acids as carbon-based materials

The invention discloses a method for preparing fluorescent carbon quantum dots by taking short-chain volatile fatty acids as carbon-based materials. The method comprises the following steps: by takingthe short-chain volatile fatty acids as the carbon-based materials, adding a liquid nitrogen source and ultrapure water, uniformly stirring, and carrying out a hydrothermal reaction, thereby obtaining the target product fluorescent carbon quantum dots. According to the method disclosed by the invention, the raw material source is wide, the price is low, and the operation is simple. The preparation conditions are low in requirements and relatively mild, and the problem that the conventional method for preparing fluorescent carbon quantum dots cannot realize large-scale production due to raw material and process limitations can be solved. 本发明公开了种利用短链挥发性脂肪酸作为碳基材料制备荧光碳量子点的方法，其是以短链挥发性脂肪酸作为碳基材料，加入液态氮源和超纯水并搅拌均匀后，进行水热反应，即获得目标产物荧光碳量子点。本发明的方法，原料来源广泛且价格便宜、操作简单，制备条件要求低且相对温和，解决了现有荧光碳量子点制备方法因原料和工艺限制而无法规模化生产的问题。