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Posidonia oceanica dead leaves (DLPO) were used as promise and inexpensive precursor for activated carbon production (CB, CAP). The samples were characterized by using elemental analysis, scanning electron microscopy (SEM), and BET surface analysis. Batch adsorption experiments were applied such as (pH, contact time, adsorbent dose) on the phenol removal efficiency. Results revealed that the phenol adsorption capacity reaches 23.64 mg/g on the CAP which is higher compared to that determined on DLPO (1.21 mg/g) and CB (12.5 mg/g). The equilibrium data follow to the Langmuir model better than Freundlich, Temkin and Dubinin–Radushkevich (D-R) models for both adsorbents. Thermodynamics analysis confirms that the phenol adsorption was spontaneously and exothermic in nature.

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Posidonia Oceanica and Its Derived Activated Carbon as Adsorbents for Phenol Removal from Aqueous Media

  • 章节

  • 发表日期：

    2025年

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  • Mohamed El Khames Saad,
  • Manel Elakremi,
  • Mongi ben Mosbah,
  • Ramzi Khiari,
  • Elimame Elaloui,
  • Ridha ben Salem,
  • Younes Moussaoui

摘要

Posidonia oceanica dead leaves (DLPO) were used as promise and inexpensive precursor for activated carbon production (CB, CAP). The samples were characterized by using elemental analysis, scanning electron microscopy (SEM), and BET surface analysis. Batch adsorption experiments were applied such as (pH, contact time, adsorbent dose) on the phenol removal efficiency. Results revealed that the phenol adsorption capacity reaches 23.64 mg/g on the CAP which is higher compared to that determined on DLPO (1.21 mg/g) and CB (12.5 mg/g). The equilibrium data follow to the Langmuir model better than Freundlich, Temkin and Dubinin–Radushkevich (D-R) models for both adsorbents. Thermodynamics analysis confirms that the phenol adsorption was spontaneously and exothermic in nature.