Method for preparing chiral molybdenum disulfide quantum dots from bottom to top

The invention discloses a method for preparing chiral molybdenum disulfide quantum dots from bottom to top, which comprises the following steps: adding molybdenum trioxide powder into a sodium hydroxide alkaline solution, uniformly mixing, adding a cysteine solution, an ascorbic acid solution and a sodium hydrosulfide solution in proportion, and changing the reaction solution from white to various colors. According to the method, the chiral characteristic strength of the prepared chiral molybdenum disulfide can be regulated and controlled by adjusting the concentration of the added ascorbic acid and cysteine. The method for preparing the chiral molybdenum disulfide quantum dots has the advantages of being easy and convenient to synthesize and high in yield. 本发明公开了一种利用自下而上方法制备手性二硫化钼量子点的方法，本方法包括将三氧化钼粉末加入氢氧化钠碱性溶液并均匀混合后，将半胱氨酸溶液、抗坏血酸溶液及硫氢化钠溶液按比例加入，反应溶液发生由白至多种颜色的变色。此种方法可以通过调整所加入的抗坏血酸、半胱氨酸的浓度，进而调控所制备的手性二硫化钼的手性特征强弱。本方法提供的制备手性二硫化钼量子点的方法对具有合成简便、产率较高的特点。