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<p>This research investigates the synthesis of zinc oxide nanoparticles (ZnO-NPs) and their adsorption onto waste beet pulp shreds (BPS) to create an antimicrobial composite material. ZnO-NPs with an average particle size of 50&#xa0;nm were successfully synthesized and characterized using dynamic light scattering, scanning electron microscopy and Fourier transform infrared spectroscopy. The BPS-ZnO-NPs composite was evaluated for its antimicrobial properties against a range of microbial strains, including <i>Staphylococcus aureus, Escherichia coli, Candida albicans,</i> and <i>Aspergillus niger</i>. The results showed that BPS-ZnO-NPs exhibited inhibition values of 92% against <i>S. aureus</i>, 96% against <i>C. albicans</i>, 94% against <i>E. coli</i> and 45% against <i>A. niger</i>, demonstrating significant antimicrobial potential. The adsorption capacity of ZnO-NPs onto BPS was found to be 181.8&#xa0;mg/g, with an increasing trend in adsorption capacity observed as the Zn(OH)<sub>2</sub> concentration increased, although a decrease in removal efficiency was noted at higher concentrations due to surface saturation. This study highlights the promising use of BPS-ZnO-NPs as an antimicrobial material, offering an environmentally friendly alternative to traditional antimicrobial agents, with a focus on utilizing waste materials in the creation of effective, low-cost composites.</p>

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Modification of waste beet pulp shreds with zinc oxide nanoparticles through adsorption to provide material with antimicrobial properties

  • 期刊论文

  • 发表日期：

    2025年3月3日

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  • Jarosław Chwastowski,
  • Paweł Staroń

摘要

This research investigates the synthesis of zinc oxide nanoparticles (ZnO-NPs) and their adsorption onto waste beet pulp shreds (BPS) to create an antimicrobial composite material. ZnO-NPs with an average particle size of 50 nm were successfully synthesized and characterized using dynamic light scattering, scanning electron microscopy and Fourier transform infrared spectroscopy. The BPS-ZnO-NPs composite was evaluated for its antimicrobial properties against a range of microbial strains, including Staphylococcus aureus, Escherichia coli, Candida albicans, and Aspergillus niger. The results showed that BPS-ZnO-NPs exhibited inhibition values of 92% against S. aureus, 96% against C. albicans, 94% against E. coli and 45% against A. niger, demonstrating significant antimicrobial potential. The adsorption capacity of ZnO-NPs onto BPS was found to be 181.8 mg/g, with an increasing trend in adsorption capacity observed as the Zn(OH)2 concentration increased, although a decrease in removal efficiency was noted at higher concentrations due to surface saturation. This study highlights the promising use of BPS-ZnO-NPs as an antimicrobial material, offering an environmentally friendly alternative to traditional antimicrobial agents, with a focus on utilizing waste materials in the creation of effective, low-cost composites.