Trifunctional Cu-Mesh/Cu2O@FeO-nanoarrays for highly efficient degradation of antibiotic, inactivation of antibiotic-resistant bacteria and damage of antibiotics resistance genes

Long Zhao, Wei Zhou, Ming Wen*, Qingsheng Wu, Weiying Li*, Yongqing Fu, Quanjing Zhu, Sheng Chen, Jiaqi Ran

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    26 Citations (Scopus)
    14 Downloads (Pure)

    Abstract

    Trifunctional Cu-mesh/Cu2O@FeO-nanoarrays heterostructure is designed and fabricated by integrating Cu2O@FeO-nanoarrays onto Cu-mesh (CM) via an in situ growth and phase transformation process. It is successfully applied to efficiently mitigate the antibiotic pollution, including degradation of antibiotics, inactivation of antibiotic-resistant bacteria (ARB) and damage of antibiotics resistance genes (ARGs). Under visible-light irradiation, CM/Cu2O@FeO-nanoarrays exhibits a superior degradation efficiency on antibiotics (e.g., up [Type here] [Type here] 2 to 99% in 25 min for tetracycline hydrochloride, TC), due to the generated reactive oxygen species (ROS), especially the dominant ·O2−. It can fully inactivate E. coli (HB101) with initial number of ~108 CFU·mL-1 in 10 min, which is mainly attributed to the synergistic effects of 1D nanostructure, dissolved metal ions and generated ROS. Meanwhile it is able to damage ARGs after 180 min of photodegradation, including tetA (vs. TC) of 3.3 log10, aphA (vs. kanamycin sulfate, KAN) of 3.4 log10, and tnpA (vs. ampicillin, AMP) of 4.4 log10, respectively. This work explores a green way for treating antibiotic pollution under visible light.
    Original languageEnglish
    Article numbere12299
    Number of pages11
    JournalEnergy and Environmental Materials
    Volume6
    Issue number1
    Early online date18 Oct 2021
    DOIs
    Publication statusPublished - 1 Jan 2023

    Keywords

    • Cu-Mesh/Cu2O@FeO-nanoarrays
    • antibiotic
    • antibiotic resistant bacteria
    • antibiotic resistance genes
    • photocatalytic degradation
    • Cu-Mesh/Cu O@FeO nanoarrays
    • antibiotic-resistant bacteria

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