Exploring Chicken Feathers as a Cost-Effective Adsorbent for Aqueous Dye Removal
This study explored the use of chicken feathers, a low-cost and abundant agricultural byproduct, as a sorbent for the removal of reactive yellow dye from aqueous solutions. The dual potential of feathers as both adsorbents and sorbents, attributed to their keratin-rich structure, was utilized to inv...
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2025-02-01
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| author | Marcela Caovilla Carolina E. Demaman Oro Rúbia Mores Luciana D. Venquiaruto Marcelo L. Mignoni Marco Di Luccio Helen Treichel Rogério Marcos Dallago Marcus V. Tres |
| author_facet | Marcela Caovilla Carolina E. Demaman Oro Rúbia Mores Luciana D. Venquiaruto Marcelo L. Mignoni Marco Di Luccio Helen Treichel Rogério Marcos Dallago Marcus V. Tres |
| author_sort | Marcela Caovilla |
| collection | DOAJ |
| description | This study explored the use of chicken feathers, a low-cost and abundant agricultural byproduct, as a sorbent for the removal of reactive yellow dye from aqueous solutions. The dual potential of feathers as both adsorbents and sorbents, attributed to their keratin-rich structure, was utilized to investigate their effectiveness in dye removal. Feathers, activated with 1.0 mol/L HCl, exhibited a maximum adsorption capacity at 70 °C and pH 5.5, as determined from Langmuir isotherm modeling. A 2<sup>2</sup> central composite rotatable design revealed that temperature and pH significantly influence the adsorption efficiency, with higher temperatures favoring the process. Kinetic studies demonstrated pseudo-first-order behavior, with rapid initial adsorption reaching equilibrium within 120 min. Thermodynamic analysis confirmed the endothermic nature of the process (ΔH° = 28.04 kJ mol<sup>−1</sup>), a positive entropy change (ΔS° = 66.62 J/mol·K), and a reduction in Gibbs free energy (ΔG°) with increasing temperature, suggesting enhanced feasibility at elevated temperatures. This research highlights the potential of utilizing poultry industry residues as sustainable and efficient sorbents for environmental remediation, contributing to waste valorization and eco-friendly wastewater treatment solutions. |
| format | Article |
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| institution | DOAJ |
| issn | 2297-8739 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
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| spelling | doaj-art-62cc3d62aa3b43c2b3d766f9577ae8162025-08-20T02:44:43ZengMDPI AGSeparations2297-87392025-02-011223910.3390/separations12020039Exploring Chicken Feathers as a Cost-Effective Adsorbent for Aqueous Dye RemovalMarcela Caovilla0Carolina E. Demaman Oro1Rúbia Mores2Luciana D. Venquiaruto3Marcelo L. Mignoni4Marco Di Luccio5Helen Treichel6Rogério Marcos Dallago7Marcus V. Tres8Department of Food and Chemical Engineering, Universidade Regional Integrada do Alto Uruguai e das Missões (URI), 1621 Sete de Setembro Av., Centro, Erechim 99709-910, RS, BrazilDepartment of Food and Chemical Engineering, Universidade Regional Integrada do Alto Uruguai e das Missões (URI), 1621 Sete de Setembro Av., Centro, Erechim 99709-910, RS, BrazilDepartment of Chemistry, Universidade do Contestado, Concórdia 89711-330, SC, BrazilDepartment of Food and Chemical Engineering, Universidade Regional Integrada do Alto Uruguai e das Missões (URI), 1621 Sete de Setembro Av., Centro, Erechim 99709-910, RS, BrazilDepartment of Food and Chemical Engineering, Universidade Regional Integrada do Alto Uruguai e das Missões (URI), 1621 Sete de Setembro Av., Centro, Erechim 99709-910, RS, BrazilDepartment of Food and Chemical Engineering, Federal University of Santa Catarina, Florianópolis 88040-900, SC, BrazilDepartment of Environmental Science and Technology, Federal University of Fronteira Sul, Erechim 99700-970, RS, BrazilDepartment of Food and Chemical Engineering, Universidade Regional Integrada do Alto Uruguai e das Missões (URI), 1621 Sete de Setembro Av., Centro, Erechim 99709-910, RS, BrazilLaboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM), Taufik Germano Rd., 3013, Cachoeira do Sul 96503-205, RS, BrazilThis study explored the use of chicken feathers, a low-cost and abundant agricultural byproduct, as a sorbent for the removal of reactive yellow dye from aqueous solutions. The dual potential of feathers as both adsorbents and sorbents, attributed to their keratin-rich structure, was utilized to investigate their effectiveness in dye removal. Feathers, activated with 1.0 mol/L HCl, exhibited a maximum adsorption capacity at 70 °C and pH 5.5, as determined from Langmuir isotherm modeling. A 2<sup>2</sup> central composite rotatable design revealed that temperature and pH significantly influence the adsorption efficiency, with higher temperatures favoring the process. Kinetic studies demonstrated pseudo-first-order behavior, with rapid initial adsorption reaching equilibrium within 120 min. Thermodynamic analysis confirmed the endothermic nature of the process (ΔH° = 28.04 kJ mol<sup>−1</sup>), a positive entropy change (ΔS° = 66.62 J/mol·K), and a reduction in Gibbs free energy (ΔG°) with increasing temperature, suggesting enhanced feasibility at elevated temperatures. This research highlights the potential of utilizing poultry industry residues as sustainable and efficient sorbents for environmental remediation, contributing to waste valorization and eco-friendly wastewater treatment solutions.https://www.mdpi.com/2297-8739/12/2/39dye removalLangmuir isothermadsorption kineticsendothermic processreactive yellow |
| spellingShingle | Marcela Caovilla Carolina E. Demaman Oro Rúbia Mores Luciana D. Venquiaruto Marcelo L. Mignoni Marco Di Luccio Helen Treichel Rogério Marcos Dallago Marcus V. Tres Exploring Chicken Feathers as a Cost-Effective Adsorbent for Aqueous Dye Removal Separations dye removal Langmuir isotherm adsorption kinetics endothermic process reactive yellow |
| title | Exploring Chicken Feathers as a Cost-Effective Adsorbent for Aqueous Dye Removal |
| title_full | Exploring Chicken Feathers as a Cost-Effective Adsorbent for Aqueous Dye Removal |
| title_fullStr | Exploring Chicken Feathers as a Cost-Effective Adsorbent for Aqueous Dye Removal |
| title_full_unstemmed | Exploring Chicken Feathers as a Cost-Effective Adsorbent for Aqueous Dye Removal |
| title_short | Exploring Chicken Feathers as a Cost-Effective Adsorbent for Aqueous Dye Removal |
| title_sort | exploring chicken feathers as a cost effective adsorbent for aqueous dye removal |
| topic | dye removal Langmuir isotherm adsorption kinetics endothermic process reactive yellow |
| url | https://www.mdpi.com/2297-8739/12/2/39 |
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