Method for modifying Ag-In-Zn-S quantum dots by ferrocene derivatives and application of Ag-In-Zn-S quantum dots

The invention belongs to the technical field of photocatalytic hydrogen production, and relates to an Ag-In-Zn-S quantum dot, in particular to a method for modifying the Ag-In-Zn-S quantum dot by a ferrocene derivative, which comprises the following steps: dispersing the Ag-In-Zn-S quantum dot in a ferrocene derivative solution with dimethyl sulfoxide as a solvent, carrying out uniform ultrasonic treatment, and carrying out hydrothermal reaction at 90-130 DEG C for 2-4 hours, wherein the mass ratio of the ferrocene derivative to the Ag-In-Zn-S quantum dots is (0.25-1) to 100. The prepared ferrocene derivative modified Ag-In-Zn-S quantum dot is good in dispersity and high in stability, and can be applied to photocatalytic hydrogen production. The photocatalytic performance and the stability of the AIZS quantum dots are improved by adopting a functional ligand quantum dot hydrothermal post-treatment mode, wherein hydrogen production rate of quantum dot visible light photocatalytic decomposition water is one tim