Preparation and Characterization of Chitosan/Kaolin/FeO Magnetic Microspheres and Their Application for the Removal of Ciprofloxacin
In this study, a magnetically separable adsorbent [chitosan (CTS)/kaolin/Fe 3 O 4 magnetic microspheres] was prepared by emulsion crosslinking. The prepared microspheres were characterized by Fourier transform infrared spectroscopic analysis, vibrating sample magnetometry, X-ray diffraction, transmi...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2014-12-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.32.10.775 |
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| author | Wei Ma Jiangdong Dai Xiaohui Dai Yongsheng Yan |
| author_facet | Wei Ma Jiangdong Dai Xiaohui Dai Yongsheng Yan |
| author_sort | Wei Ma |
| collection | DOAJ |
| description | In this study, a magnetically separable adsorbent [chitosan (CTS)/kaolin/Fe 3 O 4 magnetic microspheres] was prepared by emulsion crosslinking. The prepared microspheres were characterized by Fourier transform infrared spectroscopic analysis, vibrating sample magnetometry, X-ray diffraction, transmission electron microscopy, energy-dispersive spectrometry, thermogravimetric analysis and scanning electron microscopy. The synthesized microspheres were used as adsorbents for the removal of ciprofloxacin (CIP) from an aqueous solution. Adsorption of CIP from the aqueous solution was investigated in terms of adsorbent dose, initial pH (pH 0 ) and initial concentration. The optimal pH 0 for CIP adsorption was found to be 6. Highest adsorption capacity was achieved with an adsorbent dose of 15 mg. The adsorption kinetics were well described by the pseudo-second-order equation and the adsorption isotherms were fitted to the Langmuir model. Reusability experiments using CTS/kaolin/Fe 3 O 4 magnetic microspheres showed that the adsorption capacity of these microspheres had no observable deterioration in performance even after four repeated cycles. Results of the adsorption–desorption experiments suggest that CTS/kaolin/Fe 3 O 4 microspheres can be used as promising adsorbents for removing CIP from wastewater. |
| format | Article |
| id | doaj-art-42c8b7135d59442e999ffdc0baa7efc6 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2014-12-01 |
| publisher | SAGE Publishing |
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| series | Adsorption Science & Technology |
| spelling | doaj-art-42c8b7135d59442e999ffdc0baa7efc62025-01-02T23:11:48ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382014-12-013210.1260/0263-6174.32.10.775Preparation and Characterization of Chitosan/Kaolin/FeO Magnetic Microspheres and Their Application for the Removal of CiprofloxacinWei Ma0Jiangdong Dai1Xiaohui Dai2Yongsheng Yan3 School of Chemistry and Chemical Engineering, Pingdingshan University, Pingdingshan 467099, P.R. China School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P.R. China School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P.R. China School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P.R. ChinaIn this study, a magnetically separable adsorbent [chitosan (CTS)/kaolin/Fe 3 O 4 magnetic microspheres] was prepared by emulsion crosslinking. The prepared microspheres were characterized by Fourier transform infrared spectroscopic analysis, vibrating sample magnetometry, X-ray diffraction, transmission electron microscopy, energy-dispersive spectrometry, thermogravimetric analysis and scanning electron microscopy. The synthesized microspheres were used as adsorbents for the removal of ciprofloxacin (CIP) from an aqueous solution. Adsorption of CIP from the aqueous solution was investigated in terms of adsorbent dose, initial pH (pH 0 ) and initial concentration. The optimal pH 0 for CIP adsorption was found to be 6. Highest adsorption capacity was achieved with an adsorbent dose of 15 mg. The adsorption kinetics were well described by the pseudo-second-order equation and the adsorption isotherms were fitted to the Langmuir model. Reusability experiments using CTS/kaolin/Fe 3 O 4 magnetic microspheres showed that the adsorption capacity of these microspheres had no observable deterioration in performance even after four repeated cycles. Results of the adsorption–desorption experiments suggest that CTS/kaolin/Fe 3 O 4 microspheres can be used as promising adsorbents for removing CIP from wastewater.https://doi.org/10.1260/0263-6174.32.10.775 |
| spellingShingle | Wei Ma Jiangdong Dai Xiaohui Dai Yongsheng Yan Preparation and Characterization of Chitosan/Kaolin/FeO Magnetic Microspheres and Their Application for the Removal of Ciprofloxacin Adsorption Science & Technology |
| title | Preparation and Characterization of Chitosan/Kaolin/FeO Magnetic Microspheres and Their Application for the Removal of Ciprofloxacin |
| title_full | Preparation and Characterization of Chitosan/Kaolin/FeO Magnetic Microspheres and Their Application for the Removal of Ciprofloxacin |
| title_fullStr | Preparation and Characterization of Chitosan/Kaolin/FeO Magnetic Microspheres and Their Application for the Removal of Ciprofloxacin |
| title_full_unstemmed | Preparation and Characterization of Chitosan/Kaolin/FeO Magnetic Microspheres and Their Application for the Removal of Ciprofloxacin |
| title_short | Preparation and Characterization of Chitosan/Kaolin/FeO Magnetic Microspheres and Their Application for the Removal of Ciprofloxacin |
| title_sort | preparation and characterization of chitosan kaolin feo magnetic microspheres and their application for the removal of ciprofloxacin |
| url | https://doi.org/10.1260/0263-6174.32.10.775 |
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