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Rare Metals
Erschienen in: Rare Metals 5/2022

21.02.2022 | Original Article

Graphitic carbon nitride loaded with bismuth nanoparticles displays antibacterial photocatalytic activity

verfasst von: Hui Zhang, Ling Li, Qian-Qian Li, Tao Ma, Jia-Qi Gao, Jin-Bo Xue, Shuang Gao

Erschienen in: Rare Metals | Ausgabe 5/2022

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Abstract

Metal-free graphitic carbon nitride nanomaterials have been widely applied in the medical antibacterial field owing to their high anisotropy, excellent stability, satisfactory biocompatibility, and non-toxicity. Herein, Bi/C3N4 nanocomposites were successfully constructed by hydrothermal method followed by loading bismuth on the surface of graphite carbon nitride. Bi nanospheres were tightly combined with the layered g-C3N4 surface to promote effective separation of photo-induced charges, which results in the Bi/C3N4 composite material that exhibited excellent photocatalytic activity under visible light. In addition, the surface plasmon resonance characteristics of semi-metal Bi further enhanced the visible-light absorption of the Bi/C3N4. However, excessive Bi may inhibit the light-trapping ability of Bi/C3N4. 1.0% Bi/C3N4 demonstrates excellent bactericidal efficiency as high as 96.4% against Escherichia coli (E. coli), which is attributed to the promotion of the production of reactive oxidative species. The enhanced mechanism of Bi/C3N4 synergistically achieving enhanced photocatalytic antibacterial activity under the coupling of multiple advantages was clarified, providing theoretical guidance for its application in the field of water disinfection and antibacterial treatment.

Graphical abstract

Vorheriger Artikel Magnetocaloric effect of LaFe11.35Co0.6Si1.05 alloy
Nächster Artikel Regulating Ni site in NiV LDH for efficient electrocatalytic production of formate and hydrogen by glycerol electrolysis

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Metadaten
Titel
Graphitic carbon nitride loaded with bismuth nanoparticles displays antibacterial photocatalytic activity
verfasst von
Hui Zhang
Ling Li
Qian-Qian Li
Tao Ma
Jia-Qi Gao
Jin-Bo Xue
Shuang Gao
Publikationsdatum
21.02.2022
Verlag
Nonferrous Metals Society of China
Erschienen in
Rare Metals / Ausgabe 5/2022
Print ISSN: 1001-0521
Elektronische ISSN: 1867-7185
DOI
https://doi.org/10.1007/s12598-021-01921-y

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