Study on the Properties of Composites of Carbon Quantum Dots and Zinc Oxide

摘要

In this paper, ZnO and carbon quantum dots (CQDs) were grafted by ultrasonic method to prepare ZnO/CQDs composites with good performance, through the study of antibacterial properties, we can find that the antibacterial activity against Gram-negative bacteria (Escherichia coli) is better than the Gram-positive bacteria (Staphylococcus aureus), and it has low cytotoxicity, the antibacterial activity can be contributed to the generation of hydrogen peroxide (H2O2) from their surfaces.