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image of Enhancement of the Antibacterial Activity of Sb2O3 Nanoparticles by Coupling Cu2O

Abstract

Background

Antibacterial drugs or antibiotics, abused in medical and agricultural fields, have caused the excess production of antibiotics in the environment.

Objective

The aim of this study is to effectively enhance the antibacterial activity of SbO inhibiting the electron-hole pairs recombination through coupling the CuO to solve the significant health care challenge caused by antibiotic-resistant bacteria.

Methods

The CuO/SbO nanocomposite was successfully synthesized a facile hydrothermal method. The structure, composition, and surface morphology of the as-synthesized nanocomposite were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM), and High resolution transmission electron microscopy (HRTEM). The antibacterial performance of CuO/SbO nanocomposite was studied by the colony count method.

Results

It was found that the Cu-O-Sb bonds were formed on the surface of CuO/SbO after the CuO coupling, which was supported by XPS results. Compared with pure SbO, the CuO/SbO nanocomposite presented significantly enhanced antibacterial activity, and its antibacterial rate is greater than 99.9% against both and . This can be attributed to the fact that the electrons (e-) generated in the conduction band (CB) of CuO transferred into the CB of SbO, which could promote the carrier separation efficiently. The possible antibacterial mechanism of CuO/SbO nanocomposite was put forward.

Conclusion

The CuO/SbO nanocomposite exhibited excellent antibacterial properties, which presented the antibacterial rates of >99.9%, and might be a prospective candidate for potential applications in plastics, paint, and textile industries.

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2025-06-30
2025-07-20

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/content/journals/cnano/10.2174/0115734137374875250415080541
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Enhancement of the Antibacterial Activity of Sb2O3 Nanoparticles by Coupling Cu2O
Bentham Science Publishers ; https://doi.org/10.2174/0115734137374875250415080541
/content/journals/cnano/10.2174/0115734137374875250415080541
/content/journals/cnano/10.2174/0115734137374875250415080541
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  • Article Type:     Research Article
Keywords: Sb2O3 ; colony count method ; nanocomposite ; antibacterial mechanism ; hydrothermal method ; Cu2O ; antibacterial activity

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