Preparation method of carbon quantum dot CQDs hybridized CdIn2S4 composite material and application thereof

The invention belongs to preparation of nano composite materials, and the field of environmental governance, and discloses a preparation method of a carbon quantum dot CQDs hybridized CdIn2S4 composite material and a catalysis property of the carbon quantum dot CQDs hybridized CdIn2S4 composite material. The preparation method comprises the following steps: by taking carbon quantum dot CQDs and CdIn2S4 nanoparticles as raw materials, mixing the raw materials according to a certain ratio, and preparing a CdIn2S4 composite material nanoparticle composite photocatalyst which is hybridized with CQDs in different ratios by using a backflow method. The composite photocatalyst prepared by using the method can be used for degrading rhodamine B and an antibiotic levofloxacin in the presence of visible light. The material has the advantages that n the preparation method is simple, the cost is low, the energy consumption is small, the raw material is rich and clean, the reaction condition is gentle and the like; the carbon quantum dot CQDs hybridized CdIn2S4 composite photocatalyst is a good visible light response type composite photocatalyst, shows excellent photoproduction electron separation efficiency and excellent visible light catalysis activity, and has important application prospects in organic wastewater treatment.