Unknown

Dataset Information

0

Cysteine-Functionalized Chitosan Magnetic Nano-Based Particles for the Recovery of Light and Heavy Rare Earth Metals: Uptake Kinetics and Sorption Isotherms.


ABSTRACT: 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 be adsorbed by the combination of chelating and anion-exchange mechanisms. The sorbent can be efficiently regenerated using acidified thiourea.

SUBMITTER: Galhoum AA 

PROVIDER: S-EPMC5312863 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature

altmetric image

Publications

Cysteine-Functionalized Chitosan Magnetic Nano-Based Particles for the Recovery of Light and Heavy Rare Earth Metals: Uptake Kinetics and Sorption Isotherms.

Galhoum Ahmed A AA   Mafhouz Mohammad G MG   Abdel-Rehem Sayed T ST   Gomaa Nabawia A NA   Atia Asem A AA   Vincent Thierry T   Guibal Eric E  

Nanomaterials (Basel, Switzerland) 20150204 1


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 mode  ...[more]

Similar Datasets

| S-EPMC9227354 | biostudies-literature
| S-EPMC9268972 | biostudies-literature
| S-EPMC10552535 | biostudies-literature
| S-EPMC8697388 | biostudies-literature
| S-EPMC9201756 | biostudies-literature
| S-EPMC11372104 | biostudies-literature
| S-EPMC7519118 | biostudies-literature
| S-EPMC9086232 | biostudies-literature
| S-EPMC9249045 | biostudies-literature