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 |
Thermodynamic and Kinetic Study, Phenol, Adsorption, Carbonization, Adsorption Isotherms
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APA Style
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
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
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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Download@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}
}
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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