Abstract

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.

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