A PPy/MoS2 core-shell heterojunction modified by carbon dots exhibits high photocatalytic antibacterial performance
Zhang M. Han S. Niu X. Li H. Zhang D. Fan H. Liu X. Wang K.
13 October 2022Royal Society of Chemistry
New Journal of Chemistry
2022#10
Developing effective antimicrobials while avoiding drug resistance remains a challenge. Using a simple in situ polymerization method, this study incorporated carbon quantum dots (CQDs) in a three-component composite PPy/MoS2/CQD with a core-shell structure. The as-prepared composites indicated photocatalytic antibacterial activity. In the vitro antibacterial trials, a much higher bactericidal rate was achieved upon irradiation with visible light for 24 hours than under dark conditions. Moreover, the antibacterial effects of PPy/MoS2/CQD composites indicated similar antimicrobial effects against both general and drug-resistant bacteria owing to their unique antimicrobial mechanism, wherein the core-shell structure enhances the lifetime of photo-induced electrons and holes, leading to the effective production of a large number of reactive oxygen species and inhibiting bacteria growth. In conclusion, PPy/MoS2/CQD nanomaterials are promising antimicrobials for treating both regular and drug-resistant bacteria.
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School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, China
Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou, 730050, China
Chemistry Department, Nazarbayev University, Astana, 010000, Kazakhstan
School of Petrochemical Technology
Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province
Chemistry Department
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