Thorium ions adsorption from aqueous solution by amino naphthol sulphonate coupled chitosan

Gado, Mohamed A.; Atia, Bahig M.; Cheira, Mohamed F.; Abdou, A. A.

doi:10.1080/03067319.2019.1683552

Cited by 24 publications

(11 citation statements)

References 59 publications

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“…Furthermore, CS-modified titanium dioxide was manufactured to eliminate uranium and europium ions from solutions [19], polyvinylpyrrolidone/CS was utilized for the elimination of U(VI) [20]. Coupling CS with aminonaphthol sulfonic acid to become a brilliant synergistic influence of aminonaphthol sulfonic/CS employed to remove thorium ions [21]. U(VI) adsorption was deliberated by chitosan phosphate to attain information of U(VI) elimination in liquid systems, exclusively seawater and mine wastewater [22].…”

Section: Introductionmentioning

confidence: 99%

Peculiarities of u(vi) adsorption from acidic solution using chitin-derived chitosan as a low-priced bio-adsorbent

El-Rahem

Taher

Cheira

2021

Al-Azhar Bulletin of Science

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Chitosan (CS) as an inexpensive bio-adsorbent was set by chitin deacetylation using sodium hydroxide. The prepared bio-adsorbent was distinguished via Scanning electron microscopy (SEM), X-ray diffraction (XRD), Energy dispersive spectroscopy (EDX), Brunner-Emmett-Teller surface area (BET) analyzer, and Fourier transform infrared spectroscopy (FTIR). Chitosan implemented for U(VI) adsorption, and the studied parameters that are pH, time of contact, initial concentration, and temperature, were determined by batch technique. The maximum uptake of CS adsorbent is 88.0 mg/g at 200 mg/L initial U(VI) concentration, pH 3.5, and 25 °C. The kinetic information agreed with the pseudo-second-order model, which considered the attendance of chemisorption. The equilibrium of adsorption reaction gained within 50 min, and equilibrium information well satisfaction for Langmuir model confirmed that U(VI) adsorbed at chitosan monolayer coverage area. Also, the chitosan bio-adsorbent was indeed regenerated by 1M H2SO4 and 1/50 S/L ratio for 75 min of contact. Seven rounds of adsorption-desorption investigations attended to scrutinize the working applicability and renewed application of the bio-adsorbent.

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Section: Introductionmentioning

confidence: 99%

Peculiarities of u(vi) adsorption from acidic solution using chitin-derived chitosan as a low-priced bio-adsorbent

El-Rahem

Taher

Cheira

2021

Al-Azhar Bulletin of Science

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“…Thorium is a radioactive actinide metal that is naturally found in trace amounts in rocks, soil, and water [1][2][3]. The mineral monazite sand is considered as the main and important commercial source of thorium, uranium, and other rare earth metals [2].…”

Section: Introductionmentioning

confidence: 99%

“…Several methods have been widely used for removal of thorium and other toxic heavy metal ions from industrial effluents such as solvent extraction, chemical precipitation, flocculation, ion-exchange, chemical oxidation, electrodialysis, and membrane filtration [3,[15][16][17][18][19][20][21][22][23][24][25][26][27]. However, the performance of these separation techniques shows several drawbacks like consuming a large amount of expensive chemicals, high operational costs, long duration time, production of large quantities of disposal sludge, and low removal efficiency especially in the treatment of industrial effluents containing trace metal ions with very low concentration [11,18,22,28].…”

Section: Introductionmentioning

confidence: 99%

“…In the literature, several environmental studies have been performed to find out suitable adsorbents with high adsorption capacity for toxic metal ions. In this context, different types of adsorbents have been used for the removal and preconcentration of thorium(IV) ions including: metal oxide nanoparticles [9,36,37], plant seeds and leaves [2,11], gibbsite [31], graphene oxide composites [39], chitosan [3], pseudo-polyrotaxane [8], humic acid [32], modified silica nanoparticles [1], glauconite [40], alumina [34], silica-based monolith [10], metal oxides [14,30,35], organic-based polymers [7,33], bentonite [41], and activated carbon [4].…”

Section: Introductionmentioning

confidence: 99%

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Removal of thorium(IV) ions from aqueous solution by polyacrylamide-based monoliths: equilibrium, kinetic and thermodynamic studies

Al-Massaedh

Khalili

2021

J Radioanal Nucl Chem

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In this study, a series of macroporous polyacrylamide-based monoliths bearing negatively charged interaction sites were synthesized as adsorbents for effective removal of Th 4+ from aqueous solutions. The effects of solution pH, contact time, monolith dosage, initial concentration, and temperature on adsorption process was studied. The Langmuir, Freundlich, and Dubinin-Raduskevich adsorption isotherms were applied to describe the adsorption data. The equilibrium data were best fitted with both Freundlich and Langmuir models. The experimental kinetic data were well described by the pseudo-second order kinetic. Thermodynamic studies revealed that the adsorption of Th 4+ onto the synthesized monolith was an endothermic and spontaneous process.

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“…Several techniques including chemical precipitation, solvent extraction, electro floatation, ion exchange, reverse osmosis and adsorption have been developed to recover thorium from aqueous solutions (Gado et al, 2019;Orabi et al, 2017). At low concentrations, separation/preconcentration through adsorption of long-lived radioactive radionuclides such as thorium from aqueous solution is important in nuclear/radiation chemistry and environmental/waste treatment chemistry (Anirudhan et al, 2010).…”

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confidence: 99%

Date seed as an efficient, eco-friendly, and cost-effective bio-adsorbent for removal of thorium ions from acidic solutions

Sayed

Abdel-Mottaleb

Cheira

et al. 2020

Aswan University Journal of Environmental Studies

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Removal of thorium ions from acidic media using high effective bio-adsorbent is a very convenient viewpoint for the management of environmental pollutants. With this respect, this study is aimed to synthesize bio-adsorbent derived from date palm seed (DS bio-adsorbent) for adsorption of Th(IV) from acidic media. The studied bio-adsorbent was characterized by FTIR, SEM, and XRD techniques. The effective experimental parameters on the adsorption performance such as pH, bio-adsorbent dose, contact time, solution temperature, thorium initial concentration, and interfering ions were investigated. Furthermore, adsorption isotherm and kinetic studies were explored to describe the mechanism of thorium adsorption using the proposed bio-adsorbent. The Langmuir model result showed that the DS removal adsorption capacity was 43 mg.g-1 at optimized batch conditions. The kinetic findings indicated that the adsorption mechanism was in an agreement with the pseudo-second-order model. Additionally, the regeneration of the spent bio-adsorbent was studied using 0.3 mol.L-1 HNO3 as an eluent agent. This research suggested that the date palm seed bio-adsorbent could be evaluated as a beneficial adsorbent for the adsorption of thorium from aquatic and acidic media due to its selectivity and capacity.

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Thorium ions adsorption from aqueous solution by amino naphthol sulphonate coupled chitosan

Cited by 24 publications

References 59 publications

Peculiarities of u(vi) adsorption from acidic solution using chitin-derived chitosan as a low-priced bio-adsorbent

Peculiarities of u(vi) adsorption from acidic solution using chitin-derived chitosan as a low-priced bio-adsorbent

Removal of thorium(IV) ions from aqueous solution by polyacrylamide-based monoliths: equilibrium, kinetic and thermodynamic studies

Date seed as an efficient, eco-friendly, and cost-effective bio-adsorbent for removal of thorium ions from acidic solutions

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