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Thermodynamics and Kinetics Studies of Phenol Adsorption on to Anchote Peel Activated Carbon Adsorbent

Received: 6 May 2023     Accepted: 9 June 2023     Published: 6 July 2023
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Abstract

Thermodynamics (ΔG, ΔH, ΔS) and kinetics (pseudo first, pseudo second) of phenol adsorption were investigated. Anchote peels (coconia Abysinica peels) was carbonized and activated by treating with KOH solution followed by heating in an electrical furnace at 800°C for 2 hrs. Thermodynamics and Kinetics of Phenol adsorption experiment were carried out as a function of pH, contact time, initial concentration of the adsorbate, adsorbent dosage and temperature of the solution. Kinetic studies of the data showed that the adsorption follows the pseudo-second-order kinetic model. Thermodynamic parameters ΔG, ΔH, ΔS were investigated. The results showed that adsorption on the surface of APAC was feasible, spontaneous in nature, and exothermic. The experiments data were analyzed by the Langmuir and Freundlich models of adsorption. The results showed that the equilibrium data for phenol sorbent systems better fitted the Freundlich isotherm model. Infrared spectrum for unloaded and loaded adsorbent was obtained using FT-IR spectrophotometer. Maximum adsorption efficiencies of Phenol were 97% at optimum pH 6 and optimum contact time 210 min., adsorbent dose 0.25 g and initial conc. 0.025 mg/l respectively. Maximum adsorption capacity of APAC was observed to 43.75 mg/g of Phenol at 25°C and 5 mg/L. Therefore, Coconia Abysinica peels are potential low cost adsorbent for the removal of organic pollutant, Phenol from aqueous solution and polluted water.

Published in American Journal of Physical Chemistry (Volume 12, Issue 2)
DOI 10.11648/j.ajpc.20231202.12
Page(s) 22-29
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2023. Published by Science Publishing Group

Keywords

Thermodynamic and Kinetic Study, Phenol, Adsorption, Carbonization, Adsorption Isotherms

References
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    Leta Shifera. (2023). Thermodynamics and Kinetics Studies of Phenol Adsorption on to Anchote Peel Activated Carbon Adsorbent. American Journal of Physical Chemistry, 12(2), 22-29. https://doi.org/10.11648/j.ajpc.20231202.12

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    ACS Style

    Leta Shifera. Thermodynamics and Kinetics Studies of Phenol Adsorption on to Anchote Peel Activated Carbon Adsorbent. Am. J. Phys. Chem. 2023, 12(2), 22-29. doi: 10.11648/j.ajpc.20231202.12

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    AMA Style

    Leta Shifera. Thermodynamics and Kinetics Studies of Phenol Adsorption on to Anchote Peel Activated Carbon Adsorbent. Am J Phys Chem. 2023;12(2):22-29. doi: 10.11648/j.ajpc.20231202.12

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  • @article{10.11648/j.ajpc.20231202.12,
      author = {Leta Shifera},
      title = {Thermodynamics and Kinetics Studies of Phenol Adsorption on to Anchote Peel Activated Carbon Adsorbent},
      journal = {American Journal of Physical Chemistry},
      volume = {12},
      number = {2},
      pages = {22-29},
      doi = {10.11648/j.ajpc.20231202.12},
      url = {https://doi.org/10.11648/j.ajpc.20231202.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpc.20231202.12},
      abstract = {Thermodynamics (ΔG, ΔH, ΔS) and kinetics (pseudo first, pseudo second) of phenol adsorption were investigated. Anchote peels (coconia Abysinica peels) was carbonized and activated by treating with KOH solution followed by heating in an electrical furnace at 800°C for 2 hrs. Thermodynamics and Kinetics of Phenol adsorption experiment were carried out as a function of pH, contact time, initial concentration of the adsorbate, adsorbent dosage and temperature of the solution. Kinetic studies of the data showed that the adsorption follows the pseudo-second-order kinetic model. Thermodynamic parameters ΔG, ΔH, ΔS were investigated. The results showed that adsorption on the surface of APAC was feasible, spontaneous in nature, and exothermic. The experiments data were analyzed by the Langmuir and Freundlich models of adsorption. The results showed that the equilibrium data for phenol sorbent systems better fitted the Freundlich isotherm model. Infrared spectrum for unloaded and loaded adsorbent was obtained using FT-IR spectrophotometer. Maximum adsorption efficiencies of Phenol were 97% at optimum pH 6 and optimum contact time 210 min., adsorbent dose 0.25 g and initial conc. 0.025 mg/l respectively. Maximum adsorption capacity of APAC was observed to 43.75 mg/g of Phenol at 25°C and 5 mg/L. Therefore, Coconia Abysinica peels are potential low cost adsorbent for the removal of organic pollutant, Phenol from aqueous solution and polluted water.},
     year = {2023}
    }
    

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  • TY  - JOUR
    T1  - Thermodynamics and Kinetics Studies of Phenol Adsorption on to Anchote Peel Activated Carbon Adsorbent
    AU  - Leta Shifera
    Y1  - 2023/07/06
    PY  - 2023
    N1  - https://doi.org/10.11648/j.ajpc.20231202.12
    DO  - 10.11648/j.ajpc.20231202.12
    T2  - American Journal of Physical Chemistry
    JF  - American Journal of Physical Chemistry
    JO  - American Journal of Physical Chemistry
    SP  - 22
    EP  - 29
    PB  - Science Publishing Group
    SN  - 2327-2449
    UR  - https://doi.org/10.11648/j.ajpc.20231202.12
    AB  - Thermodynamics (ΔG, ΔH, ΔS) and kinetics (pseudo first, pseudo second) of phenol adsorption were investigated. Anchote peels (coconia Abysinica peels) was carbonized and activated by treating with KOH solution followed by heating in an electrical furnace at 800°C for 2 hrs. Thermodynamics and Kinetics of Phenol adsorption experiment were carried out as a function of pH, contact time, initial concentration of the adsorbate, adsorbent dosage and temperature of the solution. Kinetic studies of the data showed that the adsorption follows the pseudo-second-order kinetic model. Thermodynamic parameters ΔG, ΔH, ΔS were investigated. The results showed that adsorption on the surface of APAC was feasible, spontaneous in nature, and exothermic. The experiments data were analyzed by the Langmuir and Freundlich models of adsorption. The results showed that the equilibrium data for phenol sorbent systems better fitted the Freundlich isotherm model. Infrared spectrum for unloaded and loaded adsorbent was obtained using FT-IR spectrophotometer. Maximum adsorption efficiencies of Phenol were 97% at optimum pH 6 and optimum contact time 210 min., adsorbent dose 0.25 g and initial conc. 0.025 mg/l respectively. Maximum adsorption capacity of APAC was observed to 43.75 mg/g of Phenol at 25°C and 5 mg/L. Therefore, Coconia Abysinica peels are potential low cost adsorbent for the removal of organic pollutant, Phenol from aqueous solution and polluted water.
    VL  - 12
    IS  - 2
    ER  - 

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Author Information
  • Department of Chemistry, College of Natural and Computational Science, Wollega University, Nekemte, Ethiopia

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