A PPy/MoS2 core-shell heterojunction modified by carbon dots exhibits high photocatalytic antibacterial performance

Mengmeng Zhang, Sha Han, Xiaohui Niu, Hongxia Li, Deyi Zhang, Haiyan Fan, Xiaoyu Liu, Kunjie Wang

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
JournalNew Journal of Chemistry
Volume10
DOIs
Publication statusPublished - Oct 13 2022

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'A PPy/MoS2 core-shell heterojunction modified by carbon dots exhibits high photocatalytic antibacterial performance'. Together they form a unique fingerprint.

Cite this