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<p>The present study aimed to use <i>Eucalyptus</i> leaves extract for the green synthesis of ZnO oxide (ZnO) nanorods (NRs) using the hydrothermal method. The X-ray diffraction (XRD) patterns confirmed that the ZnO NRs had a hexagonal crystal structure with high crystal quality. FTIR analysis revealed the presence of functional groups associated to the formation of ZnO NRs. The optical band gap was calculated using the Tauc plot. Scanning electron microscopy (SEM) revealed rod-like morphology of the as-fabricated ZnO, which is further confirmed by the transmission electron microscopy (TEM) analysis. Furthermore, the biosynthesized ZnO NRs were used as photocatalysts for degradation of Rhodamine B (RhB) dye under ultraviolet radiation. Based on these results, ZnO NRs with a concentration of 20&#xa0;mL of the <i>eucalyptus</i> extract revealed exceptional performance with a photocatalytic degradation rate of 94.77% under UV irradiation for 90&#xa0;min. According to these results, wastewater can be treated effectively via the designed catalysts using the green and facile synthesis techniques.</p>

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Facile Green and Hydrothermal Synthesis of ZnO Nanorods using Eucalyptus Extract: Photocatalytic Degradation of Cationic Dye

  • 期刊论文

  • 发表日期：

    2025年4月14日

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  • Fares Chabira,
  • Mahdia Toubane,
  • Razika Zaïr Tala-Ighil,
  • Muhammad Humayun,
  • Suresh Sagadevan,
  • Chun Ouyang,
  • Mohamed Bououdina,
  • George Z. Kyzas

摘要

The present study aimed to use Eucalyptus leaves extract for the green synthesis of ZnO oxide (ZnO) nanorods (NRs) using the hydrothermal method. The X-ray diffraction (XRD) patterns confirmed that the ZnO NRs had a hexagonal crystal structure with high crystal quality. FTIR analysis revealed the presence of functional groups associated to the formation of ZnO NRs. The optical band gap was calculated using the Tauc plot. Scanning electron microscopy (SEM) revealed rod-like morphology of the as-fabricated ZnO, which is further confirmed by the transmission electron microscopy (TEM) analysis. Furthermore, the biosynthesized ZnO NRs were used as photocatalysts for degradation of Rhodamine B (RhB) dye under ultraviolet radiation. Based on these results, ZnO NRs with a concentration of 20 mL of the eucalyptus extract revealed exceptional performance with a photocatalytic degradation rate of 94.77% under UV irradiation for 90 min. According to these results, wastewater can be treated effectively via the designed catalysts using the green and facile synthesis techniques.