Sorption of Rare Earth Metal Ions (La(III), Nd(III) and Er(III)) using Cellulose

Galhoum, Ahmed A.; Atia, Asem A.; Tolba, Ahmad A.; Mohamady, Said I.; Mohammed, Sally S.; Guibal, Eric

doi:10.2174/2452271601666170301145759

Cited by 3 publications

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“…The observed q e values of ALG 5 C 1 at equilibrium in this paper were 104.38 mg g −1 for La(III), 100.29 mg g −1 for Ce(III), 111.40 mg g −1 for Pr(III), and 109.13 mg g −1 for Nd(III), which are comparable with those of the reported adsorbents, especially with the layered double hydroxide (LDH) intercalated cellulose nanocomposite, [60] graphene oxide/cellulose composite film [61] or rice husk carboxyl cellulose nanofibers [62] . The unmodified cellulose revealed smaller adsorption capacities towards the REE ions, equal to 38.4 mg g −1 for La(III), 51.1 mg g −1 for Nd(III), and 52.4 mg g −1 for Er(III) [63] . The sorption capacity of cellulose was confirmed in this study (not shown in the figure), and the following q e values were obtained: 12.96 mg g −1 for La(III), 16.37 mg g −1 for Ce(III), 21.35 mg g −1 for Pr(III), and 15.93 mg g −1 for Nd(III).…”

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confidence: 72%

Innovative Green Alginate‐Cellulose Composite for Light Lanthanides: Experimental Design and Comprehensive Studies on Kinetics, Equilibrium, Thermodynamics, and Reusability

Fila,

Kołodyńska

2024

ChemSusChem

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Nowadays, there is a great interest in efficient adsorbent development due to the recent demand for lanthanides, which are widely used in high‐tech technology. Alginates, owing to their natural occurrence, gel formation capability, and safety, could be promising feasible adsorbents for lanthanide removal. This study proposes the alginate‐cellulose composite as an ecological, sustainable adsorbent for light lanthanide sorption. The structure, morphology, qualitative and quantitative compositions, average diameter, and pHpzc of the composite were discussed in great detail. Using the batch approach, sorption trials were performed to evaluate the metal sorption performance. The maximum lanthanide accumulation was attained at pH 5.0 and a dosage of 0.05 g. The uptake kinetics are successfully explained by the Ho and McKay model, whereas the equilibrium data is best represented by the Langmuir equation. The presence of Cl‐, NO3‐, SO42‐, Ni(II), and Co(II) did not have any impact on the adsorption capacity. In turn, the presence of Fe(III) ions led to a 15% reduction in the adsorption. The lanthanide ions were eluted from the adsorbent following the treatment with 0.1 M HNO3. The adsorbent retained over 95% of its initial adsorption capacity after 6 series of sorption/desorption studies.

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