Removal of Th(IV) ion from wastewater using a proper Schiff base impregnated onto Amberlite XAD-4

Shiri-Yekta, Zahra

doi:10.1080/02726351.2018.1508099

Cited by 4 publications

(3 citation statements)

References 66 publications

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“…A set of technologies were forerun to separate thorium ions from its solutions, and these methods were chemical precipitation [4], ion exchange [5,6], liquid-liquid extraction [7][8][9], and adsorption [10][11][12]. Amongst these techniques, adsorptions are typical extensively utilized for separating heavy and radioactive metal ions on laboratory and industrial scales, because this method is low-cost, environmentally compatible and very efficient [13].…”

Section: Introductionmentioning

confidence: 99%

Performance of poly sulfonamide/nano-silica composite for adsorption of thorium ions from sulfate solution

Cheira

2020

SN Appl. Sci.

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A new composite of poly sulfonamide/nano-silica composite (PSA/silica) was synthesized from the polymerization of sulfonamide in the presence of the prepared nano-silica. The prepared nano-silica, poly sulphonamide (PSA), and PSA/ silica composites were utilized for Th(IV) adsorption from sulfate solution. These composites described by XRD, surface area analysis, SEM-EDX, and FT-IR techniques. The influence parameters on the Th(IV) adsorption were pH solution, ionic strength, contact time, adsorbent dose, Th(IV) concentration, and temperature besides the coexisting ions. At best parameters (pH4, 0.1 g adsorbent amount, and 45 min contact time), 200 mg/L Th(IV) ions were quantitatively adsorbed from 100 mL solution. The maximum uptake capacities of the nano-silica, PSA, and PSA/silica composites attained 122, 75, and 197 mg/g at 298 K. From the kinetic and equilibrium data were found to the adsorption processes of three composites fitted well with kinetic model of pseudo-second-order and Langmuir adsorption isotherm model. Thermodynamic studies resulted that negative values for ∆H° indicated an exothermic while positive values ∆S° showed random behavior for Th(IV) adsorption, while negative values of ∆G° indicated spontaneous Th(IV) adsorption. The maximum Th(IV) desorption from the loaded adsorbents performed by 0.1 M/L HCl.

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Section: Introductionmentioning

confidence: 99%

Performance of poly sulfonamide/nano-silica composite for adsorption of thorium ions from sulfate solution

Cheira

2020

SN Appl. Sci.

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“…The authors of [63] studied the extraction of thorium (IV) from Th(NO3)4 aqueous solution using Amberlite XAD-4 resin loaded with a tetradentate Schiff base-bis(2-hydroxybenzaldehyde)-1,2-ethylenediimine diaminoethane 41. Uranium extraction from alkaline leachate of uranium ores is a promising area of research, as uranium is the main raw material of the nuclear industry.…”

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Chelating Extractants for Metals

Yudaev

Chistyakov

2022

Metals

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In the present review, works on the classes of chelating extractants for metals, compounds with several amide and carboxyl groups, azomethines, oximes, macrocyclic compounds (crown ethers and calixarenes), phenanthroline derivatives, and others are systematized. This review focuses on the efficiency and selectivity of the extractants in the recovery of metals from industrial wastewater, soil, spent raw materials, and the separation of metal mixtures. As a result of this study, it was found that over the past seven years, the largest number of works has been devoted to the extraction of heavy metals with amino acids (16 articles), azomethines and oximes (12 articles), lanthanids with amide compounds (15 articles), lanthanides and actinides with phenanthroline derivatives (7 articles), and noble metals with calixarenes (4 articles). Analysis of the literature showed that amino acids are especially effective for extracting heavy metals from the soil; thiodiglycolamides and aminocalixarenes for extracting noble metals from industrial waste; amide compounds, azomethines, oximes, and phenanthroline derivatives for extracting actinides; amide compounds for extracting lanthanides; crown ethers for extracting radioactive strontium, rhenium and technetium. The most studied parameters of extraction processes in the reviewed articles were the distribution ratios and separation factors. Based on the reviewed articles, it follows that chelate polydentate compounds are more efficient compounds for the extraction of metals from secondary resources compared to monodentate compounds.

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Cross-linked chitosan anchoring on magnetic nanosorbent for efficient eliminating of uranium (VI): equilibrium, kinetic, and thermodynamic studies

Bourghani,

Janitabardarzi,

Abdolmohammadi

et al. 2024

J Radioanal Nucl Chem

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Removal of Th(IV) ion from wastewater using a proper Schiff base impregnated onto Amberlite XAD-4

Cited by 4 publications

References 66 publications

Performance of poly sulfonamide/nano-silica composite for adsorption of thorium ions from sulfate solution

Performance of poly sulfonamide/nano-silica composite for adsorption of thorium ions from sulfate solution

Chelating Extractants for Metals

Cross-linked chitosan anchoring on magnetic nanosorbent for efficient eliminating of uranium (VI): equilibrium, kinetic, and thermodynamic studies

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