Cellulose-based Adsorbent of Animal Waste for the Adsorption of Lead and Phenol
The adsorption of phenol and Pb2+ from aqueous solutions was achieved using calcined animal waste (cow dung) as a low-cost adsorbent. Fourier transform infrared analysis confirmed the involvement of hydroxyl, carbonate, and possibly silicate functional groups in the adsorption process. Scanning elec...
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North Carolina State University
2025-04-01
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| Online Access: | https://ojs.bioresources.com/index.php/BRJ/article/view/24299 |
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| author | Patrick T. Ngueagni Mohamed Hefnawy Edwin Andrew Ofudje Ali El Gamal James Asamu Akande Talha Bin Emran |
| author_facet | Patrick T. Ngueagni Mohamed Hefnawy Edwin Andrew Ofudje Ali El Gamal James Asamu Akande Talha Bin Emran |
| author_sort | Patrick T. Ngueagni |
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| description | The adsorption of phenol and Pb2+ from aqueous solutions was achieved using calcined animal waste (cow dung) as a low-cost adsorbent. Fourier transform infrared analysis confirmed the involvement of hydroxyl, carbonate, and possibly silicate functional groups in the adsorption process. Scanning electron microscope images revealed the presence of distinct rod-like fibers on the adsorbent surface. Adsorption kinetics revealed an increase in pollutant uptake over time, with the effect being more pronounced at a higher initial concentration of 280 mg/L. The optimal pH for maximum adsorption was identified as 6.5 for phenol and 4.5 for lead. Langmuir isotherm analysis indicated a higher adsorption affinity for lead, with a maximum adsorption capacity of 101 mg/g, compared to 89.3 mg/g for phenol. Conversely, the Freundlich isotherm model demonstrated a better fit for phenol adsorption. Thermodynamic evaluations showed negative ΔG° values, confirming the spontaneous nature of the sorption process for both pollutants. The enthalpy change (ΔH°) values of 11.6 kJ/mol for phenol and 21.7 kJ/mol for lead validated the endothermic nature of the adsorption. These results underscore the effectiveness of calcined animal waste as a sustainable and efficient adsorbent for eliminating phenol and lead from wastewater. |
| format | Article |
| id | doaj-art-6b8df6bb48fd4832a032510b2a4ff77d |
| institution | OA Journals |
| issn | 1930-2126 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj-art-6b8df6bb48fd4832a032510b2a4ff77d2025-08-20T02:12:45ZengNorth Carolina State UniversityBioResources1930-21262025-04-01202392339522571Cellulose-based Adsorbent of Animal Waste for the Adsorption of Lead and PhenolPatrick T. Ngueagni0Mohamed Hefnawy1Edwin Andrew Ofudje2Ali El Gamal3James Asamu Akande4Talha Bin Emran5Department of Inorganic Chemistry, Faculty of Science, University of Yaoundé, 812, Yaoundé, CameroonDepartment of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Chemical Sciences, Mountain Top University, Ogun State, NigeriaDepartment of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Chemistry and Biochemistry, Caleb University, Imota, Lagos State, NigeriaDepartment of Pathology and Laboratory Medicine, Warren Alpert Medical School, Brown University, Providence, RI 02912, USA; Department of Pharmacy, Faculty of Health and Life Science, Daffodil International University, Dhaka 1207, BangladeshThe adsorption of phenol and Pb2+ from aqueous solutions was achieved using calcined animal waste (cow dung) as a low-cost adsorbent. Fourier transform infrared analysis confirmed the involvement of hydroxyl, carbonate, and possibly silicate functional groups in the adsorption process. Scanning electron microscope images revealed the presence of distinct rod-like fibers on the adsorbent surface. Adsorption kinetics revealed an increase in pollutant uptake over time, with the effect being more pronounced at a higher initial concentration of 280 mg/L. The optimal pH for maximum adsorption was identified as 6.5 for phenol and 4.5 for lead. Langmuir isotherm analysis indicated a higher adsorption affinity for lead, with a maximum adsorption capacity of 101 mg/g, compared to 89.3 mg/g for phenol. Conversely, the Freundlich isotherm model demonstrated a better fit for phenol adsorption. Thermodynamic evaluations showed negative ΔG° values, confirming the spontaneous nature of the sorption process for both pollutants. The enthalpy change (ΔH°) values of 11.6 kJ/mol for phenol and 21.7 kJ/mol for lead validated the endothermic nature of the adsorption. These results underscore the effectiveness of calcined animal waste as a sustainable and efficient adsorbent for eliminating phenol and lead from wastewater.https://ojs.bioresources.com/index.php/BRJ/article/view/24299adsorbentadsorptionanimal wastecellulosecontaminants |
| spellingShingle | Patrick T. Ngueagni Mohamed Hefnawy Edwin Andrew Ofudje Ali El Gamal James Asamu Akande Talha Bin Emran Cellulose-based Adsorbent of Animal Waste for the Adsorption of Lead and Phenol BioResources adsorbent adsorption animal waste cellulose contaminants |
| title | Cellulose-based Adsorbent of Animal Waste for the Adsorption of Lead and Phenol |
| title_full | Cellulose-based Adsorbent of Animal Waste for the Adsorption of Lead and Phenol |
| title_fullStr | Cellulose-based Adsorbent of Animal Waste for the Adsorption of Lead and Phenol |
| title_full_unstemmed | Cellulose-based Adsorbent of Animal Waste for the Adsorption of Lead and Phenol |
| title_short | Cellulose-based Adsorbent of Animal Waste for the Adsorption of Lead and Phenol |
| title_sort | cellulose based adsorbent of animal waste for the adsorption of lead and phenol |
| topic | adsorbent adsorption animal waste cellulose contaminants |
| url | https://ojs.bioresources.com/index.php/BRJ/article/view/24299 |
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