Adsorption of anionic dye onto magnetic FeO/CeO nanocomposite: Equilibrium, kinetics, and thermodynamics
In this study, a magnetically separable Fe 3 O 4 /CeO 2 (Fe/Ce) nanocomposite is synthesized by sol-precipitation method and characterized by field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy dispersive spectrometer , vibrating sample magnetomet...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2019-05-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/0263617418819164 |
| _version_ | 1826904894614798336 |
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| author | Shaomin Gao Wenwen Zhang Zhaohui An Shulin Kong Donghui Chen |
| author_facet | Shaomin Gao Wenwen Zhang Zhaohui An Shulin Kong Donghui Chen |
| author_sort | Shaomin Gao |
| collection | DOAJ |
| description | In this study, a magnetically separable Fe 3 O 4 /CeO 2 (Fe/Ce) nanocomposite is synthesized by sol-precipitation method and characterized by field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy dispersive spectrometer , vibrating sample magnetometer, atomic absorption spectrometer, and zeta potential measurements. The Fe/Ce is used as sorbent to adsorb anionic dye of Acid Black 210 (AB210) from aqueous solutions, and the maximum adsorption capacity is about 90.50 mg/g, which is six times higher than that of the commercial CeO 2 . Dependence of absorption performance on essential factors, such as initial dye concentration, temperature and initial pH, are experimentally examined. The result shows that the adsorption kinetic of Fe/Ce follows pseudo-second-order model and the adsorption isotherm is well described by the Langmuir adsorption model. Furthermore, the thermodynamic analysis indicates that the adsorption of Fe/Ce for AB210 is spontaneous and endothermic. |
| first_indexed | 2024-03-07T17:11:46Z |
| format | Article |
| id | doaj.art-55b192ed09194bb6abc5d2653fc78fdb |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2025-02-17T08:20:38Z |
| publishDate | 2019-05-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-55b192ed09194bb6abc5d2653fc78fdb2025-01-02T23:11:47ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382019-05-013710.1177/0263617418819164Adsorption of anionic dye onto magnetic FeO/CeO nanocomposite: Equilibrium, kinetics, and thermodynamicsShaomin GaoWenwen ZhangZhaohui AnShulin KongDonghui ChenIn this study, a magnetically separable Fe 3 O 4 /CeO 2 (Fe/Ce) nanocomposite is synthesized by sol-precipitation method and characterized by field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy dispersive spectrometer , vibrating sample magnetometer, atomic absorption spectrometer, and zeta potential measurements. The Fe/Ce is used as sorbent to adsorb anionic dye of Acid Black 210 (AB210) from aqueous solutions, and the maximum adsorption capacity is about 90.50 mg/g, which is six times higher than that of the commercial CeO 2 . Dependence of absorption performance on essential factors, such as initial dye concentration, temperature and initial pH, are experimentally examined. The result shows that the adsorption kinetic of Fe/Ce follows pseudo-second-order model and the adsorption isotherm is well described by the Langmuir adsorption model. Furthermore, the thermodynamic analysis indicates that the adsorption of Fe/Ce for AB210 is spontaneous and endothermic.https://doi.org/10.1177/0263617418819164 |
| spellingShingle | Shaomin Gao Wenwen Zhang Zhaohui An Shulin Kong Donghui Chen Adsorption of anionic dye onto magnetic FeO/CeO nanocomposite: Equilibrium, kinetics, and thermodynamics Adsorption Science & Technology |
| title | Adsorption of anionic dye onto magnetic FeO/CeO nanocomposite: Equilibrium, kinetics, and thermodynamics |
| title_full | Adsorption of anionic dye onto magnetic FeO/CeO nanocomposite: Equilibrium, kinetics, and thermodynamics |
| title_fullStr | Adsorption of anionic dye onto magnetic FeO/CeO nanocomposite: Equilibrium, kinetics, and thermodynamics |
| title_full_unstemmed | Adsorption of anionic dye onto magnetic FeO/CeO nanocomposite: Equilibrium, kinetics, and thermodynamics |
| title_short | Adsorption of anionic dye onto magnetic FeO/CeO nanocomposite: Equilibrium, kinetics, and thermodynamics |
| title_sort | adsorption of anionic dye onto magnetic feo ceo nanocomposite equilibrium kinetics and thermodynamics |
| url | https://doi.org/10.1177/0263617418819164 |
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