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<p>In this study, an environmentally friendly green method was successfully used for the formation of Ag@CuO/CNC nanocomposites of various compositions. Comprehensive analysis using UV-Vis, FTIR, NTA, SEM, TEM, and XPS confirmed that well-integrated Ag and CuO nanoparticles were successfully formed inside the matrix of cellulose nanocrystals (CNCs). CNC effectively provides a solid support and supporting surface for the nanocomposites, as shown by the structural, morphological, and compositional studies that showed uniform dispersion of the metal/metal oxide particles. The synergistic interaction between Ag and CuO significantly enhanced the functionality of the nanocomposites. Ag<sub>25</sub>@CuO<sub>75</sub>/CNC had the best photocatalytic activity among all the compositions, degrading methylene blue by around 88.33%, mainly as a result of increased reactive species formation and charge separation. Ag<sub>75</sub>@CuO<sub>25</sub>/CNC, on the other hand, exhibited the highest antioxidant activity and antibacterial performance among all of the prepared samples, with a maximum zone of inhibition of around 16.26&#xa0;mm. These findings illustrate that changing the Ag@CuO composition can thoroughly enhance photocatalytic, antibacterial, and antioxidant properties, which makes Ag@CuO/CNC nanocomposites significant material for biomedical and environmental applications.&#xa0;</p> Graphical Abstract <p></p>

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Green Synthesis of Nanocellulose-Based Ag@CuO Nanocomposites and its Evaluation for Photocatalytic, Antibacterial Activity and Antioxidant Activity

  • 期刊论文

  • 发表日期：

    2026年4月13日

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  • Prajakta P. Baikar,
  • Guruprasad R. Mavlankar,
  • Akshay Chavan,
  • Deepa N. Rangadal,
  • Minakshi N. Bhatu,
  • Pravin Tirmali,
  • Vishal R. Parthe,
  • Shubhangi P. Patil

摘要

In this study, an environmentally friendly green method was successfully used for the formation of Ag@CuO/CNC nanocomposites of various compositions. Comprehensive analysis using UV-Vis, FTIR, NTA, SEM, TEM, and XPS confirmed that well-integrated Ag and CuO nanoparticles were successfully formed inside the matrix of cellulose nanocrystals (CNCs). CNC effectively provides a solid support and supporting surface for the nanocomposites, as shown by the structural, morphological, and compositional studies that showed uniform dispersion of the metal/metal oxide particles. The synergistic interaction between Ag and CuO significantly enhanced the functionality of the nanocomposites. Ag25@CuO75/CNC had the best photocatalytic activity among all the compositions, degrading methylene blue by around 88.33%, mainly as a result of increased reactive species formation and charge separation. Ag75@CuO25/CNC, on the other hand, exhibited the highest antioxidant activity and antibacterial performance among all of the prepared samples, with a maximum zone of inhibition of around 16.26 mm. These findings illustrate that changing the Ag@CuO composition can thoroughly enhance photocatalytic, antibacterial, and antioxidant properties, which makes Ag@CuO/CNC nanocomposites significant material for biomedical and environmental applications. 

Graphical Abstract