▎ 摘　　要

NOVELTY - The method involves irradiating graphene quantum dots with mercury lamps and controlling the photoluminescence properties of the graphene quantum dots by controlling the time of mercury lamp irradiation operation such that the distance between the plane of the graphene quantum dot and the source of lamp is 4-9 cm and 5-7 cm. The mercury lamp is supplied with power of 300-1000 Watts and 400-600 Watts. The ammonia atmosphere kept at atmospheric pressure. The distance between the plane of the graphene quantum dot and the light source is set as 6cm, when the lamp power is 500 Watts. USE - Method for controlling photoluminescence of quantum dots. ADVANTAGE - The photochemical method can be used to achieve the product luminescence characteristics of the regulation. The control process is simple and easy to manipulate and does not introduce impurities. The purity of the resulting product is improved, and the resulting product is provided with uniform particle size distribution with diameter distribution. DESCRIPTION OF DRAWING(S) - The drawing shows the graphical view illustrating a method for controlling photoluminescence of quantum dots.