Green β-cyclodextrin nanosponges for the efficient adsorption of light rare earth elements: Cerium and lanthanum

Jemli, Sonia; Pinto, Diana; Kanhounnon, Wilfried G.; Amara, Fakhreddine Ben; Sellaoui, Lotfi; Bonilla‐Petriciolet, Adrián; Dhaouadi, Fatma; Ameri, Rihab; Silva, Luis; Béjar, Samír; Dotto, Guilherme Luiz; Badawi, Michaël

doi:10.1016/j.cej.2023.143108

Cited by 23 publications

(3 citation statements)

References 60 publications

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“…It also exhibited superior adsorption capabilities for rare-earth elements, with maximum adsorption capacities of 64.28, 49.24, 51.16, and 40.92 mg/g for the rare-earth elements Y, Nd, Eu, and Gd, respectively, at a temperature of 25 °C. Jemli et al prepared green, inexpensive, and easily synthesized β-cyclodextrin nanosponges for the effective adsorption of cerium and lanthanum from aqueous solution [ 79 ]. The adsorption capacity of the material was 625.34 and 773.29 mg/g for Ce and La, respectively.…”

Section: Adsorption Of Rare-earth Elements On Porous Materialsmentioning

confidence: 99%

Overview of Functionalized Porous Materials for Rare-Earth Element Separation and Recovery

Peng,

Zhu,

Zou

et al. 2024

Molecules

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The exceptional photoelectromagnetic characteristics of rare-earth elements contribute significantly to their indispensable position in the high-tech industry. The exponential expansion of the demand for high-purity rare earth and related compounds can be attributed to the swift advancement of contemporary technology. Nevertheless, rare-earth elements are finite and limited resources, and their excessive mining unavoidably results in resource depletion and environmental degradation. Hence, it is crucial to establish a highly effective approach for the extraction and reclamation of rare-earth elements. Adsorption is regarded as a promising technique for the recovery of rare-earth elements owing to its simplicity, environmentally friendly nature, and cost-effectiveness. The efficacy of adsorption is contingent upon the performance characteristics of the adsorbent material. Presently, there is a prevalent utilization of porous adsorbent materials with substantial specific surface areas and plentiful surface functional groups in the realm of selectively separating and recovering rare-earth elements. This paper presents a thorough examination of porous inorganic carbon materials, porous inorganic silicon materials, porous organic polymers, and metal–organic framework materials. The adsorption performance and processes for rare-earth elements are the focal points of discussion about these materials. Furthermore, this work investigates the potential applications of porous materials in the domain of the adsorption of rare-earth elements.

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Section: Adsorption Of Rare-earth Elements On Porous Materialsmentioning

confidence: 99%

Overview of Functionalized Porous Materials for Rare-Earth Element Separation and Recovery

Peng,

Zhu,

Zou

et al. 2024

Molecules

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“…Proteins and tissues' biological roles for Ca(II) ion can be duplicated and replaced by La(III). Numerous REEs have also been demonstrated to cause oxidative stress and DNA structural changes, which can cause cancer (Martinez-Gomez et al, 2016; Qiu et al, 2022;Jemli et al, 2023). So, REEs must be recovered from secondary sources like liquid effluents or leachates.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Adsorption of Rare Earth Metal Ions on Chitosan-coated Fumed Silica: Characterization, Kinetics, and Isotherm Studies

Abd Aziz,

Mohd Hir,

Wan Mat Khalir

et al. 2024

Ecol. Eng. Environ. Technol.

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The present study manufactured and utilized the chitosan-coated fumed silica composite (CS@silica) for simultaneous adsorption of rare earth elements (REEs) of Ce(III), La(III), and Nd(III) cations in an aqueous solution. The CS@silica composite underwent characterization using a CHNOS analyzer, Brunauer-Emmett-Teller (BET) surface area analyzer, attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectrophotometer, scanning electron microscope coupled with energy-dispersive X-ray (SEM-EDX) spectrophotometer, and X-ray diffraction (XRD) analyzer. The findings indicated that the CS@silica composite exhibited a lack of pores and possessed a specific surface area of 1.27 m 2 /g. Additionally, it was observed that the composite contained a significant amount of oxygen and nitrogen atoms, which serve as the active sites for the adsorption of REEs. The maximum adsorption capacities of Ce(III), La(III), and Nd(III) cations were determined under optimal experimental conditions. These parameters included a pH of 4, an adsorbent dose of 0.01 g, and an equilibrium duration of 20 min. The maximum adsorption capacities for Ce(III), La(III), and Nd(III) cations were found to be 341, 241, and 299 mg/g, respectively. The adsorption kinetics followed the pseudo-second-order kinetic model. The desorption percentage of REEs-loaded CS@silica composite was significantly low when exposed to deionized water and hydrochloric acid (0.01 and 0.02 M). This suggests that there is a chemical interaction between the REEs and the active site on the surface of the composite. The predominant adsorption process proposed was complexation, with ion exchange and electrostatic contact playing a minor role. The CS@silica composite is highly promising for the recovery of REEs because of its rapid adsorption and high adsorption capacities.

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“…Over the past few decades, there has been a growing interest in the extraction and reclamation of rare earth elements (REs) due to their critical role in various industrial applications [23]. Currently, researchers are exploring the impact of incorporating RE ions, including Dy, gadolinium (Gd), ytterbium (Yb), lanthanum (La), and cerium (Ce), on the structural, magnetic, optical, and electrical properties of magnetic ferrite thin films [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

The Relationship between Annealing Temperatures and Surface Roughness in Shaping the Physical Characteristics of Co40Fe40B10Dy10 Thin Films

Fern,

Liu,

Chiang

et al. 2023

Coatings

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Co40Fe40B10Dy10 thin films, with thicknesses varying between 10 nm and 50 nm, were grown on a Si(100) substrate. Subsequently, they underwent a 1 h annealing process in an Ar atmosphere at temperatures of 100 °C, 200 °C, and 300 °C. The oxide characteristic peaks of Dy2O3(440), Co2O3(422), and Co2O3(511) were revealed by X-ray diffraction (XRD). The low-frequency alternating current magnetic susceptibility (χac) decreases with frequency. Due to thickness and the anisotropy of the magnetic crystal, the maximum χac and saturation magnetization values rise with thicknesses and annealing temperatures. As the thickness and heat treatment temperature rise, the values for resistivity and sheet resistance tend to fall. The results of atomic force microscopy (AFM) and magnetic force microscopy (MFM) show that average roughness (Ra) lowers as the annealing temperature increases, and the distribution of strip-like magnetic domain becomes more visible. As thickness and annealing temperature increase, there is a corresponding rise in surface energy. Nano-indentation testing shows that hardness initially decreases from 10 nm to 40 nm, followed by an increase at 50 nm. Notably, annealing at 300 °C leads to a significant hardening effect, marking the highest level of hardness observed. Young’s modulus increased as thicknesses and annealing temperatures increased. The magnetic, electric, and adhesive characteristics of CoFeBDy films are highly dependent on surface roughness at various annealing temperatures.

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Green β-cyclodextrin nanosponges for the efficient adsorption of light rare earth elements: Cerium and lanthanum

Cited by 23 publications

References 60 publications

Overview of Functionalized Porous Materials for Rare-Earth Element Separation and Recovery

Overview of Functionalized Porous Materials for Rare-Earth Element Separation and Recovery

Simultaneous Adsorption of Rare Earth Metal Ions on Chitosan-coated Fumed Silica: Characterization, Kinetics, and Isotherm Studies

The Relationship between Annealing Temperatures and Surface Roughness in Shaping the Physical Characteristics of Co40Fe40B10Dy10 Thin Films

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