Effect of Chitosan/jojoba oil/ZnO nanocomposite Capsules Applications on Some Chemical Properties of Polluted Soils

Document Type : Original Article

Author

Soil physics and chemistry department, Water resources and desert land division, Desert Research Center, Cairo, Egypt

Abstract

Using chitosan/jojoba oil and chitosan/jojoba oil/ZnO nanocomposite capsules, this study looked at how to get rid of Fe2+ and Ni2+ ions from soil in study areas with high levels of heavy metals like Fe2+ and Ni2+ ions, which pose environmental risks to the ecosystem. The created adsorbents were characterized using scanning electron microscopy (SEM), Fourier transform infrared (FTIR), particle size measurements and transmission electron microscopy (TEM). A batch experiment was performed to determine the effects of contact time, adsorbate concentration, temperature, and solution pH. At pH 3.3 and 5.3, composite materials demonstrated adsorption efficiencies of 90% for Fe2+ ions and 69.8% for Ni2+ ions from aqueous solutions. According to adsorption isotherm investigations, polymer nanocomposites satisfy the Langmuir and Freundlich models. But the Freundlich isotherm model more accurately characterized the experimental data. The study results suggested that chitosan/jojoba oil and chitosan/jojoba oil/ZnO nanocomposite capsules serve as practical materials for removing Fe2+ and Ni2+ ions from aqueous solutions. These capsules can be utilized as fertilizers, especially in soils contaminated with Fe and Ni, while providing Mallow plant (Corchorus olitorius) nutrients like Zn.

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History

  • Receive Date: 02 February 2024
  • Revise Date: 21 February 2024
  • Accept Date: 22 February 2024

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