Thermodynamics and Mechanism of the Adsorption of Heavy Metal Ions on Keratin Biomasses for Wastewater Detoxification
The analysis of thermodynamics and mechanism of the adsorption of cadmium, chromium, copper, and lead ions from aqueous solution with two keratin-based biomaterials, namely, human hair and sheep fur, is reported in this paper. The effect of initial ion concentration, temperature, pH, contact time, a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publications
2022-01-01
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| Series: | Adsorption Science & Technology |
| Online Access: | http://dx.doi.org/10.1155/2022/7384924 |
| _version_ | 1797285536092651520 |
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| author | Salaudeen Abdulwasiu Olawale Adrián Bonilla-Petriciolet Didilia Ileana Mendoza-Castillo Chibueze Charles Okafor Lotfi Sellaoui Michael Badawi |
| author_facet | Salaudeen Abdulwasiu Olawale Adrián Bonilla-Petriciolet Didilia Ileana Mendoza-Castillo Chibueze Charles Okafor Lotfi Sellaoui Michael Badawi |
| author_sort | Salaudeen Abdulwasiu Olawale |
| collection | DOAJ |
| description | The analysis of thermodynamics and mechanism of the adsorption of cadmium, chromium, copper, and lead ions from aqueous solution with two keratin-based biomaterials, namely, human hair and sheep fur, is reported in this paper. The effect of initial ion concentration, temperature, pH, contact time, and biomaterial amount on the removal of these heavy metal ions using these keratinous adsorbents was studied. The adsorption of heavy metal ions was highly dependent on the operating parameters where pH and temperature showed the highest impact. Maximum adsorption capacities of these biomaterials were up to 1.33 and 1.40 mmol/g for chromium ions using human hair and sheep fur, respectively. Adsorption kinetic rates of tested heavy metal ions were calculated via a pseudo-second-order model, and they ranged from 0.054 to 0.261 g/mmol·min. A detailed thermodynamic analysis of lead ion adsorption was performed showing an endothermic removal of this adsorbate with both human hair and sheep fur with adsorption enthalpies of 84.5 and 97.1 kJ/mol, respectively. Statistical physics calculations demonstrated that this heavy metal ion was adsorbed via a multi-interaction mechanism especially for human hair. These keratinous biomaterials showed competitive adsorption capacities especially for chromium ion removal and can outperform commercial activated carbons and other adsorbents reported in literature. |
| first_indexed | 2024-03-07T18:03:40Z |
| format | Article |
| id | doaj.art-76fbe9962c5a4aa48b2531700abec641 |
| institution | Directory Open Access Journal |
| issn | 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T18:03:40Z |
| publishDate | 2022-01-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-76fbe9962c5a4aa48b2531700abec6412024-03-02T10:01:03ZengSAGE PublicationsAdsorption Science & Technology2048-40382022-01-01202210.1155/2022/7384924Thermodynamics and Mechanism of the Adsorption of Heavy Metal Ions on Keratin Biomasses for Wastewater DetoxificationSalaudeen Abdulwasiu Olawale0Adrián Bonilla-Petriciolet1Didilia Ileana Mendoza-Castillo2Chibueze Charles Okafor3Lotfi Sellaoui4Michael Badawi5Chemistry Unit of Applied Mathematics ProgrammeChemical Engineering DepartmentChemical Engineering DepartmentChemistry DepartmentLaboratory of Quantum and Statistical PhysicsLaboratoire de Physique et Chimie ThéoriquesThe analysis of thermodynamics and mechanism of the adsorption of cadmium, chromium, copper, and lead ions from aqueous solution with two keratin-based biomaterials, namely, human hair and sheep fur, is reported in this paper. The effect of initial ion concentration, temperature, pH, contact time, and biomaterial amount on the removal of these heavy metal ions using these keratinous adsorbents was studied. The adsorption of heavy metal ions was highly dependent on the operating parameters where pH and temperature showed the highest impact. Maximum adsorption capacities of these biomaterials were up to 1.33 and 1.40 mmol/g for chromium ions using human hair and sheep fur, respectively. Adsorption kinetic rates of tested heavy metal ions were calculated via a pseudo-second-order model, and they ranged from 0.054 to 0.261 g/mmol·min. A detailed thermodynamic analysis of lead ion adsorption was performed showing an endothermic removal of this adsorbate with both human hair and sheep fur with adsorption enthalpies of 84.5 and 97.1 kJ/mol, respectively. Statistical physics calculations demonstrated that this heavy metal ion was adsorbed via a multi-interaction mechanism especially for human hair. These keratinous biomaterials showed competitive adsorption capacities especially for chromium ion removal and can outperform commercial activated carbons and other adsorbents reported in literature.http://dx.doi.org/10.1155/2022/7384924 |
| spellingShingle | Salaudeen Abdulwasiu Olawale Adrián Bonilla-Petriciolet Didilia Ileana Mendoza-Castillo Chibueze Charles Okafor Lotfi Sellaoui Michael Badawi Thermodynamics and Mechanism of the Adsorption of Heavy Metal Ions on Keratin Biomasses for Wastewater Detoxification Adsorption Science & Technology |
| title | Thermodynamics and Mechanism of the Adsorption of Heavy Metal Ions on Keratin Biomasses for Wastewater Detoxification |
| title_full | Thermodynamics and Mechanism of the Adsorption of Heavy Metal Ions on Keratin Biomasses for Wastewater Detoxification |
| title_fullStr | Thermodynamics and Mechanism of the Adsorption of Heavy Metal Ions on Keratin Biomasses for Wastewater Detoxification |
| title_full_unstemmed | Thermodynamics and Mechanism of the Adsorption of Heavy Metal Ions on Keratin Biomasses for Wastewater Detoxification |
| title_short | Thermodynamics and Mechanism of the Adsorption of Heavy Metal Ions on Keratin Biomasses for Wastewater Detoxification |
| title_sort | thermodynamics and mechanism of the adsorption of heavy metal ions on keratin biomasses for wastewater detoxification |
| url | http://dx.doi.org/10.1155/2022/7384924 |
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