Efficient removal of tetracycline from wastewater using chitosan-based aerogels functionalized with natural zeolite, Fe₃O₄, and MOF-808
In this study, chitosan (CS) aerogel, a CS/N-zeolite composite, and a magnetic nanocomposite (CS/N-zeolite/Fe₃O₄/MOF-808) were developed as efficient, eco-friendly adsorbents for tetracycline (TC) removal from pharmaceutical wastewater. Structural analysis confirmed successful synthesis, with surfac...
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Elsevier
2025-09-01
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| Series: | Carbohydrate Polymer Technologies and Applications |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666893925003020 |
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| author | Fatemeh Babaei Rauf Foroutan Abolfazl Tutunchi Mehrshad Ahmadi Bahman Ramavandi |
| author_facet | Fatemeh Babaei Rauf Foroutan Abolfazl Tutunchi Mehrshad Ahmadi Bahman Ramavandi |
| author_sort | Fatemeh Babaei |
| collection | DOAJ |
| description | In this study, chitosan (CS) aerogel, a CS/N-zeolite composite, and a magnetic nanocomposite (CS/N-zeolite/Fe₃O₄/MOF-808) were developed as efficient, eco-friendly adsorbents for tetracycline (TC) removal from pharmaceutical wastewater. Structural analysis confirmed successful synthesis, with surface areas of 5.908, 13.708, and 31.873 m²/g. XRD verified incorporation of MOF-808, N-zeolite, and Fe₃O₄ into the CS matrix. Under optimized conditions (pH 7, 50 °C, 10 mg/L TC, adsorbent doses of 2, 1.25, and 1 g/L, contact times of 90, 70, and 50 min), maximum TC removal rates were 98.94 %, 98.65 %, and 99.11 %, respectively. Thermodynamics indicated spontaneity and endothermic behavior, with negative Gibbs free energy and positive enthalpy values (26.326, 22.346, and 52.852 kJ/mol). Kinetic models fit well (R² > 0.95) to both pseudo-first and pseudo-second order, implying physical and chemical adsorption. The nanocomposite showed the highest initial adsorption rate (α = 6.002 mg/g·min). Equilibrium data fit Langmuir isotherm, indicating favorable, mainly physical adsorption. Maximum adsorption capacities for CS aerogel, CS/N-zeolite, and magnetic nanocomposite were 12.63, 23.21, and 31.69 mg/g, respectively. Reusability tests showed stable performance over multiple cycles. The CS/N-zeolite/Fe₃O₄/MOF-808 nanocomposite is a durable, recyclable adsorbent for TC removal from pharmaceutical effluents. |
| format | Article |
| id | doaj-art-e821a69e3bfd482da2ba3b7a9734c439 |
| institution | Kabale University |
| issn | 2666-8939 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Carbohydrate Polymer Technologies and Applications |
| spelling | doaj-art-e821a69e3bfd482da2ba3b7a9734c4392025-08-20T03:44:25ZengElsevierCarbohydrate Polymer Technologies and Applications2666-89392025-09-011110096110.1016/j.carpta.2025.100961Efficient removal of tetracycline from wastewater using chitosan-based aerogels functionalized with natural zeolite, Fe₃O₄, and MOF-808Fatemeh Babaei0Rauf Foroutan1Abolfazl Tutunchi2Mehrshad Ahmadi3Bahman Ramavandi4Laboratory of Advanced Water and Wastewater, Central Laboratory of University of Tabriz, Tabriz 51666-16471, IranLaboratory of Advanced Water and Wastewater, Central Laboratory of University of Tabriz, Tabriz 51666-16471, Iran; Corresponding authors.Department of Materials Engineering, Institute of Mechanical Engineering, University of Tabriz, Tabriz, IranSystems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, IranSystems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran; Corresponding authors.In this study, chitosan (CS) aerogel, a CS/N-zeolite composite, and a magnetic nanocomposite (CS/N-zeolite/Fe₃O₄/MOF-808) were developed as efficient, eco-friendly adsorbents for tetracycline (TC) removal from pharmaceutical wastewater. Structural analysis confirmed successful synthesis, with surface areas of 5.908, 13.708, and 31.873 m²/g. XRD verified incorporation of MOF-808, N-zeolite, and Fe₃O₄ into the CS matrix. Under optimized conditions (pH 7, 50 °C, 10 mg/L TC, adsorbent doses of 2, 1.25, and 1 g/L, contact times of 90, 70, and 50 min), maximum TC removal rates were 98.94 %, 98.65 %, and 99.11 %, respectively. Thermodynamics indicated spontaneity and endothermic behavior, with negative Gibbs free energy and positive enthalpy values (26.326, 22.346, and 52.852 kJ/mol). Kinetic models fit well (R² > 0.95) to both pseudo-first and pseudo-second order, implying physical and chemical adsorption. The nanocomposite showed the highest initial adsorption rate (α = 6.002 mg/g·min). Equilibrium data fit Langmuir isotherm, indicating favorable, mainly physical adsorption. Maximum adsorption capacities for CS aerogel, CS/N-zeolite, and magnetic nanocomposite were 12.63, 23.21, and 31.69 mg/g, respectively. Reusability tests showed stable performance over multiple cycles. The CS/N-zeolite/Fe₃O₄/MOF-808 nanocomposite is a durable, recyclable adsorbent for TC removal from pharmaceutical effluents.http://www.sciencedirect.com/science/article/pii/S2666893925003020AerogelChitosanAntibioticTetracyclineAqueous solutionIndustrial wastewater |
| spellingShingle | Fatemeh Babaei Rauf Foroutan Abolfazl Tutunchi Mehrshad Ahmadi Bahman Ramavandi Efficient removal of tetracycline from wastewater using chitosan-based aerogels functionalized with natural zeolite, Fe₃O₄, and MOF-808 Carbohydrate Polymer Technologies and Applications Aerogel Chitosan Antibiotic Tetracycline Aqueous solution Industrial wastewater |
| title | Efficient removal of tetracycline from wastewater using chitosan-based aerogels functionalized with natural zeolite, Fe₃O₄, and MOF-808 |
| title_full | Efficient removal of tetracycline from wastewater using chitosan-based aerogels functionalized with natural zeolite, Fe₃O₄, and MOF-808 |
| title_fullStr | Efficient removal of tetracycline from wastewater using chitosan-based aerogels functionalized with natural zeolite, Fe₃O₄, and MOF-808 |
| title_full_unstemmed | Efficient removal of tetracycline from wastewater using chitosan-based aerogels functionalized with natural zeolite, Fe₃O₄, and MOF-808 |
| title_short | Efficient removal of tetracycline from wastewater using chitosan-based aerogels functionalized with natural zeolite, Fe₃O₄, and MOF-808 |
| title_sort | efficient removal of tetracycline from wastewater using chitosan based aerogels functionalized with natural zeolite fe₃o₄ and mof 808 |
| topic | Aerogel Chitosan Antibiotic Tetracycline Aqueous solution Industrial wastewater |
| url | http://www.sciencedirect.com/science/article/pii/S2666893925003020 |
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