The Influence of the Chemical Structures of Chitosan and Acid Dye on the Adsorption Process
The objective of this paper is the study of the influence of the chemical structures of adsorbent and adsorbate on the adsorption process. By using of crab shell chitosan (CC) and deep-pink shrimp chitosan (CP) for removal of acid 183 and AR114 from aqueous solutions, it is shown that CP, which corr...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2012/706938 |
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| author | Hayet Ben Ali Salma Besbes Hentati Salem S. Al-Deyab Mohamed Rzaigui M'henni Mohamed Farouk |
| author_facet | Hayet Ben Ali Salma Besbes Hentati Salem S. Al-Deyab Mohamed Rzaigui M'henni Mohamed Farouk |
| author_sort | Hayet Ben Ali |
| collection | DOAJ |
| description | The objective of this paper is the study of the influence of the chemical structures of adsorbent and adsorbate on the adsorption process. By using of crab shell chitosan (CC) and deep-pink shrimp chitosan (CP) for removal of acid 183 and AR114 from aqueous solutions, it is shown that CP, which corresponds to the highest molecular weight, is the most efficient adsorbent material. In addition, the best extent of decolorization is obtained for AR 183 that is the smallest molecule. Langmuir model represents the best fit of the experimental data, indicating monolayer coverage of chitosan outer surface. Pseudo-second order kinetic model describes accurately the adsorption processes, suggesting chemical rate limiting steps. The positive values of the enthalpy changes indicated endothermic attachment of dyes to the biomaterials. CP/AR183 system corresponds to the most energetically favorable phenomenon. Besides, desorption of AR from chitosan was found to be very low in acidic aqueous medium for all couples. |
| format | Article |
| id | doaj-art-4880193014c0420697b6b555d59faa05 |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-4880193014c0420697b6b555d59faa052025-02-03T01:21:47ZengWileyE-Journal of Chemistry0973-49452090-98102012-01-01942415242310.1155/2012/706938The Influence of the Chemical Structures of Chitosan and Acid Dye on the Adsorption ProcessHayet Ben Ali0Salma Besbes Hentati1Salem S. Al-Deyab2Mohamed Rzaigui3M'henni Mohamed Farouk4Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, Zarzouna 7021, Bizerte, TunisiaLaboratoire de Thermodynamique et d'Electrochimie, Faculté des Sciences de Bizerte, Zarzouna 7021, Bizerte, TunisiaPetrochemical Research Chair, College de Science, King Saud University, Riadh, Saudi ArabiaLaboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, Zarzouna 7021, Bizerte, TunisiaUnité de Recherche de Chimie Appliquée et Environment, Faculté des science de Monastir, 5000, TunisiaThe objective of this paper is the study of the influence of the chemical structures of adsorbent and adsorbate on the adsorption process. By using of crab shell chitosan (CC) and deep-pink shrimp chitosan (CP) for removal of acid 183 and AR114 from aqueous solutions, it is shown that CP, which corresponds to the highest molecular weight, is the most efficient adsorbent material. In addition, the best extent of decolorization is obtained for AR 183 that is the smallest molecule. Langmuir model represents the best fit of the experimental data, indicating monolayer coverage of chitosan outer surface. Pseudo-second order kinetic model describes accurately the adsorption processes, suggesting chemical rate limiting steps. The positive values of the enthalpy changes indicated endothermic attachment of dyes to the biomaterials. CP/AR183 system corresponds to the most energetically favorable phenomenon. Besides, desorption of AR from chitosan was found to be very low in acidic aqueous medium for all couples.http://dx.doi.org/10.1155/2012/706938 |
| spellingShingle | Hayet Ben Ali Salma Besbes Hentati Salem S. Al-Deyab Mohamed Rzaigui M'henni Mohamed Farouk The Influence of the Chemical Structures of Chitosan and Acid Dye on the Adsorption Process E-Journal of Chemistry |
| title | The Influence of the Chemical Structures of Chitosan and Acid Dye on the Adsorption Process |
| title_full | The Influence of the Chemical Structures of Chitosan and Acid Dye on the Adsorption Process |
| title_fullStr | The Influence of the Chemical Structures of Chitosan and Acid Dye on the Adsorption Process |
| title_full_unstemmed | The Influence of the Chemical Structures of Chitosan and Acid Dye on the Adsorption Process |
| title_short | The Influence of the Chemical Structures of Chitosan and Acid Dye on the Adsorption Process |
| title_sort | influence of the chemical structures of chitosan and acid dye on the adsorption process |
| url | http://dx.doi.org/10.1155/2012/706938 |
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