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  • Visible-light driven rapid bacterial inactivation on red phosphorus/titanium oxide nanofiber heterostructures

    Author(s)
    Liu, J
    Zhu, Y
    Chen, J
    Butenko, DS
    Ren, J
    Yang, X
    Lu, P
    Meng, P
    Xu, Y
    Yang, D
    Zhang, S
    Griffith University Author(s)
    Yang, Dongjiang
    Year published
    2021
    Metadata
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    Abstract
    Photocatalytic water disinfection has emerged as a promising approach for water purification. However, exploring efficient and rapid visible light driven materials for photocatalytic bacterial inactivation is still a challenging problem. Herein, red phosphorus/titanium oxide (TiO2@RP) nanofibers were developed for effective water disinfection by a vacuum ampoule strategy. The complete E. coli and S. aureus (7-log CFU mL−1) could be rapidly killed within 25 min and 30 min over the optimized TiO2@RP heterostructure under the white LED irradiation. The efficient photocatalytic antibacterial activity should be mainly ascribed ...
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    Photocatalytic water disinfection has emerged as a promising approach for water purification. However, exploring efficient and rapid visible light driven materials for photocatalytic bacterial inactivation is still a challenging problem. Herein, red phosphorus/titanium oxide (TiO2@RP) nanofibers were developed for effective water disinfection by a vacuum ampoule strategy. The complete E. coli and S. aureus (7-log CFU mL−1) could be rapidly killed within 25 min and 30 min over the optimized TiO2@RP heterostructure under the white LED irradiation. The efficient photocatalytic antibacterial activity should be mainly ascribed to the synergetic enhancement in light absorption by RP decoration and charge migration and separation by the interface between TiO2 and RP. And then more unpaired photo-carriers would be transferred to the surface to facilitate the generation of photo-holes, •O2- radicals, and H2O2 species, which could destroy the bacterial cells efficiently.
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    Journal Title
    Journal of Hazardous Materials
    Volume
    413
    DOI
    https://doi.org/10.1016/j.jhazmat.2021.125462
    Subject
    Chemical sciences
    Environmental sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/402936
    Collection
    • Journal articles

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