Chitosan Functionalized with Carboxyl Groups as a Recyclable Biomaterial for the Adsorption of Cu (II) and Zn (II) Ions in Aqueous Media
The modification of chitosan represents a challenging task in obtaining biopolymeric materials with enhanced removal capacity for heavy metals. In the present work, the adsorption characteristics of chitosan modified with carboxyl groups (CTS-CAA) towards copper (II) and zinc (II) ions have been tes...
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MDPI AG
2022-02-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/23/4/2396 |
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| author | Asmaa M. Abu El-Soad Giuseppe Lazzara Mahmoud O. Abd El-Magied Giuseppe Cavallaro Jamelah S. Al-Otaibi M. I. Sayyed Elena G. Kovaleva |
| author_facet | Asmaa M. Abu El-Soad Giuseppe Lazzara Mahmoud O. Abd El-Magied Giuseppe Cavallaro Jamelah S. Al-Otaibi M. I. Sayyed Elena G. Kovaleva |
| author_sort | Asmaa M. Abu El-Soad |
| collection | DOAJ |
| description | The modification of chitosan represents a challenging task in obtaining biopolymeric materials with enhanced removal capacity for heavy metals. In the present work, the adsorption characteristics of chitosan modified with carboxyl groups (CTS-CAA) towards copper (II) and zinc (II) ions have been tested. The efficacy of the synthesis of CTS-CAA has been evaluated by studying various properties of the modified chitosan. Specifically, the functionalized chitosan has been characterized by using several techniques, including thermal analyses (differential scanning calorimetry and thermogravimetry), spectroscopies (FT-IR, XRD), elemental analysis, and scanning electron microscopy. The kinetics and the adsorption isotherms of CTS-CAA towards both Cu (II) and Zn (II) have been determined in the aqueous solvent under variable pH. The obtained results have been analyzed by using different adsorption models. In addition, the experiments have been conducted at variable temperatures to explore the thermodynamics of the adsorption process. The regeneration of CTS-CAA has been investigated by studying the desorption process using different eluents. This paper reports an efficient protocol to synthesize chitosan-based material perspective as regenerative adsorbents for heavy metals. |
| first_indexed | 2024-03-09T21:42:55Z |
| format | Article |
| id | doaj.art-3dfc2d53129e4d4d8203655dc84fcf55 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-09T21:42:55Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-3dfc2d53129e4d4d8203655dc84fcf552023-11-23T20:24:51ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-02-01234239610.3390/ijms23042396Chitosan Functionalized with Carboxyl Groups as a Recyclable Biomaterial for the Adsorption of Cu (II) and Zn (II) Ions in Aqueous MediaAsmaa M. Abu El-Soad0Giuseppe Lazzara1Mahmoud O. Abd El-Magied2Giuseppe Cavallaro3Jamelah S. Al-Otaibi4M. I. Sayyed5Elena G. Kovaleva6Department of Technology of Organic Synthesis, Institute of Chemical Technology, Ural Federal University, Mira St. 19, 620002 Yekaterinburg, RussiaDipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, Parco d’Orleans II, Ed. 17, 90128 Palermo, ItalyNuclear Materials Authority, El Maadi, Cairo 11381, EgyptDipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, Parco d’Orleans II, Ed. 17, 90128 Palermo, ItalyDepartment of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi ArabiaDepartment of Physics, Faculty of Science, Isra University, Amman 11622, JordanDepartment of Technology of Organic Synthesis, Institute of Chemical Technology, Ural Federal University, Mira St. 19, 620002 Yekaterinburg, RussiaThe modification of chitosan represents a challenging task in obtaining biopolymeric materials with enhanced removal capacity for heavy metals. In the present work, the adsorption characteristics of chitosan modified with carboxyl groups (CTS-CAA) towards copper (II) and zinc (II) ions have been tested. The efficacy of the synthesis of CTS-CAA has been evaluated by studying various properties of the modified chitosan. Specifically, the functionalized chitosan has been characterized by using several techniques, including thermal analyses (differential scanning calorimetry and thermogravimetry), spectroscopies (FT-IR, XRD), elemental analysis, and scanning electron microscopy. The kinetics and the adsorption isotherms of CTS-CAA towards both Cu (II) and Zn (II) have been determined in the aqueous solvent under variable pH. The obtained results have been analyzed by using different adsorption models. In addition, the experiments have been conducted at variable temperatures to explore the thermodynamics of the adsorption process. The regeneration of CTS-CAA has been investigated by studying the desorption process using different eluents. This paper reports an efficient protocol to synthesize chitosan-based material perspective as regenerative adsorbents for heavy metals.https://www.mdpi.com/1422-0067/23/4/2396biomaterialsadsorptionthermodynamic studies |
| spellingShingle | Asmaa M. Abu El-Soad Giuseppe Lazzara Mahmoud O. Abd El-Magied Giuseppe Cavallaro Jamelah S. Al-Otaibi M. I. Sayyed Elena G. Kovaleva Chitosan Functionalized with Carboxyl Groups as a Recyclable Biomaterial for the Adsorption of Cu (II) and Zn (II) Ions in Aqueous Media International Journal of Molecular Sciences biomaterials adsorption thermodynamic studies |
| title | Chitosan Functionalized with Carboxyl Groups as a Recyclable Biomaterial for the Adsorption of Cu (II) and Zn (II) Ions in Aqueous Media |
| title_full | Chitosan Functionalized with Carboxyl Groups as a Recyclable Biomaterial for the Adsorption of Cu (II) and Zn (II) Ions in Aqueous Media |
| title_fullStr | Chitosan Functionalized with Carboxyl Groups as a Recyclable Biomaterial for the Adsorption of Cu (II) and Zn (II) Ions in Aqueous Media |
| title_full_unstemmed | Chitosan Functionalized with Carboxyl Groups as a Recyclable Biomaterial for the Adsorption of Cu (II) and Zn (II) Ions in Aqueous Media |
| title_short | Chitosan Functionalized with Carboxyl Groups as a Recyclable Biomaterial for the Adsorption of Cu (II) and Zn (II) Ions in Aqueous Media |
| title_sort | chitosan functionalized with carboxyl groups as a recyclable biomaterial for the adsorption of cu ii and zn ii ions in aqueous media |
| topic | biomaterials adsorption thermodynamic studies |
| url | https://www.mdpi.com/1422-0067/23/4/2396 |
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