Academic Journal
Cysteine-Functionalized Chitosan Magnetic Nano-Based Particles for the Recovery of Light and Heavy Rare Earth Metals: Uptake Kinetics and Sorption Isotherms
| العنوان: | Cysteine-Functionalized Chitosan Magnetic Nano-Based Particles for the Recovery of Light and Heavy Rare Earth Metals: Uptake Kinetics and Sorption Isotherms |
|---|---|
| المؤلفون: | Galhoum, Ahmed A, G. Mafhouz, Mohammad, Abdel-Rehem, Sayed T., Gomaa, Nabawia A., Atia, Asem A., Thierry, Vincent, Eric, Guibal |
| المساهمون: | Centre des Matériaux des Mines d'Alès (C2MA), IMT - MINES ALES (IMT - MINES ALES), Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT), Nuclear Materials Authority Le Caire, Ain Shams University (ASU), Menoufia University Egypte |
| المصدر: | ISSN: 2079-4991. |
| بيانات النشر: | HAL CCSD MDPI |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | cysteine-grafting, rare earth metals, magnetic chitosan nanocomposites, sorption isotherms, uptake kinetics, thermodynamics, [CHIM.POLY]Chemical Sciences/Polymers |
| الوصف: | International audience ; Cysteine-functionalized chitosan magnetic nano-based particles were synthesized for the sorption of light and heavy rare earth (RE) metal ions (La(III), Nd(III) and Yb(III)). The structural, surface, and magnetic properties of nano-sized sorbent were investigated by elemental analysis, FTIR, XRD, TEM and VSM (vibrating sample magnetometry). Experimental data show that the pseudo second-order rate equation fits the kinetic profiles well, while sorption isotherms are described by the Langmuir model. Thermodynamic constants (ΔG°, ΔH°) demonstrate the spontaneous and endothermic nature of sorption. Yb(III) (heavy RE) was selectively sorbed while light RE metal ions La(III) and Nd(III) were concentrated/enriched in the solution. Cationic species RE(III) in aqueous solution can OPEN ACCESS Nanomaterials 2015, 5 155 be adsorbed by the combination of chelating and anion-exchange mechanisms. The sorbent can be efficiently regenerated using acidified thiourea. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | hal-02914274; https://imt-mines-ales.hal.science/hal-02914274; https://imt-mines-ales.hal.science/hal-02914274/document; https://imt-mines-ales.hal.science/hal-02914274/file/nanomaterials-05-00154.pdf |
| DOI: | 10.3390/nano5010154 |
| الاتاحة: | https://imt-mines-ales.hal.science/hal-02914274 https://imt-mines-ales.hal.science/hal-02914274/document https://imt-mines-ales.hal.science/hal-02914274/file/nanomaterials-05-00154.pdf https://doi.org/10.3390/nano5010154 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.6866D65C |
| قاعدة البيانات: | BASE |
| DOI: | 10.3390/nano5010154 |
|---|