Composite magnetic sorbents based on magnetic Fe3O4 coated by Zn and Al layered double hydroxide for U(VI) removal from aqueous media

Ivanov, N. P.; Dran’kov, A. N.; Shichalin, O. O.; Lembikov, A. O.; Buravlev, I. Yu.; Mayorov, V. Yu.; Balanov, M. I.; Rogachev, K. A.; Kaspruk, G. D.; Pisarev, S. M.; Marmaza, P. A.; Rastorguev, V. L.; Balybina, V. A.; Fedorets, A. N.; Kaptakov, V. O.; Papynov, E. K.

doi:10.1007/s10967-024-09362-4

J Radioanal Nucl Chem

2024

DOI: 10.1007/s10967-024-09362-4

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Composite magnetic sorbents based on magnetic Fe3O4 coated by Zn and Al layered double hydroxide for U(VI) removal from aqueous media

N. P. Ivanov,

A. N. Dran’kov,

O. O. Shichalin

et al.

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Cited by 11 publications

References 59 publications

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Preparation and Characterization of Pyramids/Particles NiO/SnO2 Composite for Sorption and Separation of Molybdenum and Zirconium Ions from Some Synthetic Fission Products

Rizk,

Labib

2024

J Inorg Organomet Polym

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Pyramids/particles of NiO/SnO2 composite (NS7) was produced by applying the sol–gel autocombustion method. The produced composite was investigated using different techniques, X-ray diffraction, Fourier-transform infrared, Raman spectroscopy, scanning electron microscope, dynamic light scattering, ultraviolet–visible absorbance spectroscopy, and BET surface area then was applied for the adsorption and separation of molybdenum and zirconium ions from lanthanum, strontium, and cesium. 3D pyramids of NiO and particles of SnO2 are confirmed in the composite with a homogeneous mesoporous structure. The composite has good affinity for zirconium and molybdenum ions with fast kinetics and Qmax of 27.1 and 33.3 mg/g, respectively, low affinity for lanthanum, and negligible affinity for strontium and cesium. The sorption mechanism is physical sorption and endothermic in nature. The adsorbed Zr(IV), Mo(VI), and La(III) ions were separated using the desorption process as the following sequence: First, 95 ± 2% (14.3 ppm) of the loaded La was desorbed by washing with double distilled water. Then 96 ± 2% (41.3 ppm) of the loaded Zr was recovered by 1 M potassium chloride without interfering ions. Finally, 98 ± 2% (42.88 ppm) of Mo is desorbed by 1 M sodium acetate solution. The NS7 composite can be reused five times successfully.

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Preparation and Characterization of Pyramids/Particles NiO/SnO2 Composite for Sorption and Separation of Molybdenum and Zirconium Ions from Some Synthetic Fission Products

Rizk,

Labib

2024

J Inorg Organomet Polym

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Agmatine ligand functionalized magnetic alginate beads for removal of U(VI) ions from solution

Bayramoglu,

Arica

2024

J Radioanal Nucl Chem

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In the presented work, magnetic alginate (MA) beads were prepared and activated with epichlorohydrin and then functionalized with agmatine ligands (MA-A). The materials were analyzed by FTIR, SEM, XRD, and BET methods. The adsorption capacity of the MA-A for U(VI) was 451.4 mg/g. The Langmuir isotherm model well described the experimental data for the adsorption of U(VI) ions. The second-order kinetic model data proposed that the adsorption of U(VI) ions preferred the chemisorption mechanism. The adsorption enthalpy of the MA-A beads for U(VI) ions was 35.4 kJ/mol. After seven cycles of use, the adsorption capacity of MA-A beads was not significantly changed for U(VI) ions. Finally, the functionalization of MA beads with agmatine ligand can be a good candidate for applications for environmental technologies to remove metal ions.

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Self-assembled fabrication of robust and durable graphene-based composite aerogel for selective uranium capture

Chao,

Cui,

Zhao

et al. 2024

J Radioanal Nucl Chem

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Composite magnetic sorbents based on magnetic Fe3O4 coated by Zn and Al layered double hydroxide for U(VI) removal from aqueous media

Cited by 11 publications

References 59 publications

Preparation and Characterization of Pyramids/Particles NiO/SnO2 Composite for Sorption and Separation of Molybdenum and Zirconium Ions from Some Synthetic Fission Products

Preparation and Characterization of Pyramids/Particles NiO/SnO2 Composite for Sorption and Separation of Molybdenum and Zirconium Ions from Some Synthetic Fission Products

Agmatine ligand functionalized magnetic alginate beads for removal of U(VI) ions from solution

Self-assembled fabrication of robust and durable graphene-based composite aerogel for selective uranium capture

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