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<p>This research used the co-precipitation approach to design the CdS/MWCNTs/CuO nanocomposite. Characterizations were conducted using several techniques, including X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), Fourier transformation infrared spectroscopy (FTIR), and UV–Vis spectrophotometry. adding MWCNTs improved the surface properties, increased the number of photocatalytic sites, and reduced the energy gap compared to pure CdS and CuO NPs. After 150 min of irradiation, the nanocomposite, which was deposited as a thin film to evaluate the photodegradation of methylene blue (MB) dye under sunlight exposure, achieved an efficiency of 77% in a typical aqueous medium. The CdS/MWCNTs/CuO nanocomposite demonstrated a degrading efficiency of 79.5% at pH 9 and enhanced to 85.86% at pH 10. The antimicrobial activity exhibited substantial inhibition zones against Staphylococcus aureus, Escherichia coli, and the fungal strain Candida albicans. the synthesized novel nanocomposite possesses outstanding photocatalytic and antimicrobial properties.</p> Graphical abstract <p></p>

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Novel CdS/MWCNTs/CuO nanocomposite with high photocatalytic and antimicrobial activity

  • 期刊论文

  • 发表日期：

    2025年3月14日

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  • Safaa M. Kheder,
  • Haitham Talib Hussein,
  • Huda Mahmood Alattar

摘要

This research used the co-precipitation approach to design the CdS/MWCNTs/CuO nanocomposite. Characterizations were conducted using several techniques, including X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), Fourier transformation infrared spectroscopy (FTIR), and UV–Vis spectrophotometry. adding MWCNTs improved the surface properties, increased the number of photocatalytic sites, and reduced the energy gap compared to pure CdS and CuO NPs. After 150 min of irradiation, the nanocomposite, which was deposited as a thin film to evaluate the photodegradation of methylene blue (MB) dye under sunlight exposure, achieved an efficiency of 77% in a typical aqueous medium. The CdS/MWCNTs/CuO nanocomposite demonstrated a degrading efficiency of 79.5% at pH 9 and enhanced to 85.86% at pH 10. The antimicrobial activity exhibited substantial inhibition zones against Staphylococcus aureus, Escherichia coli, and the fungal strain Candida albicans. the synthesized novel nanocomposite possesses outstanding photocatalytic and antimicrobial properties.

Graphical abstract