Separation of europium from aqueous solutions using Al3+- and Fe3+-doped zirconium and titanium phosphates

Μisaelides, P.; Sarri, S.; Zamboulis, D.; Gallios, George P.; Zhuravlev, Igor Z.; Стрелко, В. В.

doi:10.1007/s10967-006-0123-8

Cited by 24 publications

(4 citation statements)

References 2 publications

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“…A comparison of the q 0 values with data collected in the literature obtained by means of the Langmuir model for the Eu(III) adsorption on eggshell powder and other sorbents is shown in Table 3. These data show that eggshell powder exhibits an excellent adsorption capacity towards Eu(III) and that even if the q 0 values for other materials are higher (Diniz and Volesky 2005;Misaelides et al 2006;Sun et al 2012b), the advantages of the material studied here are their availability and low cost. Moreover, regarding the disposal of Eu-loaded eggshell powder, it may be thermally decomposed to Eu-calcium oxide, and this material could be later encapsulated as a borosilicate glass, which is resistant to chemical and environmental damage.…”

Section: Esmentioning

confidence: 65%

“…The isotopes of this element are considered toxic to humans (Bünzli and Choppin 1989). Indeed, europium adsorption on several materials is now well understood (Texier et al 2002;Diniz and Volesky 2005;Misaelides et al 2006;Chen et al 2009;Fan et al 2009;Shao et al 2009;Granados-Correa and Jiménez-Reyes 2011;Sun et al 2012a, b;Xu et al 2012;Yang et al 2012;Granados-Correa et al 2013b;Yang et al 2013). Recently, it was found that Eu(III) ions are efficiently retained by barium carbonate (Granados-Correa and Jiménez-Reyes 2011) and calcium hydroxyapatite (Granados-Correa et al 2013b).…”

Section: Introductionmentioning

confidence: 99%

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Kinetic, Equilibrium and Thermodynamic Studies on the Adsorption of Eu(III) by Eggshell from Aqueous Solutions

Granados-Correa

Jiménez‐Reyes

2013

Adsorption Science & Technology

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Eu(III) adsorption by eggshell from aqueous solutions was studied as a function of contact time, initial metal ion concentration and temperature through batch experiments. Analysis and discussions of possible mechanisms are included in the light of a comparison of currently known equilibrium adsorption models, kinetic models and thermodynamic parameters in open specialized literature. The experimental data fit very well with the Langmuir-Freundlich isotherm and the pseudo-second-order kinetic models. For thermodynamic considerations in terms of adsorption, the thermodynamics parameters ∆H°, ∆S°and ∆G°were evaluated, and the results indicated that the Eu(III) adsorption on eggshell is an endothermic and spontaneous process. These results show that eggshell is an effective, low-cost and widely available adsorbent in the field of lanthanide removal from aqueous solutions.

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Section: Esmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Kinetic, Equilibrium and Thermodynamic Studies on the Adsorption of Eu(III) by Eggshell from Aqueous Solutions

Granados-Correa

Jiménez‐Reyes

2013

Adsorption Science & Technology

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“…Further research allowed synthesis of ion exchangers such as a granulated gels, which favorably differ from powders [24][25][26]. Recent studies have allowed increasing the porosity, the selectivity of adsorption and the exchange capacity of such gels to radionuclides and other cationic and anionic contaminants [27][28][29][30][31][32]. Adsorption of heavy radionuclide ions which have a complex-forming ability-uranium, plutonium, americium, lanthanides, cobalt, etc.-can be carried out onto the above-mentioned adsorbents, apatites, and onto the metal-substituted forms of silica gel [33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Titanium Silicates Precipitated on the Rice Husk Biochar as Adsorbents for the Extraction of Cesium and Strontium Radioisotope Ions

Zhuravlev¹

2019

Colloids and Interfaces

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The aim of the work was the development of cheap and effective adsorbents based on titanium silicates deposited on the products of thermochemical processing of rice husk to extract cesium and strontium radioisotopes from aqueous media. Synthesis of adsorbents was carried out using the cheapest and widely used titanium water-soluble reagent, titanium sulfate (an intermediate product of white rutile pigment production), as feedstock. After treatment with titanium sulfate and neutralization, hydrothermal treatment was carried out in various ways. The traditional method of processing in an autoclave was used, as well as the blowing at different temperatures by steam. The distribution coefficients and the adsorption capacity for cesium and strontium ions on these sorbents were studied. Along with the chemical composition of adsorbents obtained by those ways, the type and the temperature of hydrothermal treatment also affected the adsorption properties. It was found that the adsorbent obtained by hydrothermal treatment in an autoclave has the highest degree of cesium ions extraction (Kd = 27,500). The highest degree of strontium ions extraction (Kd = 2,095,000) has an adsorbent obtained by hydrothermal treatment with water vapor blowing.

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“…Also, the study of adsorption kinetics in wastewater treatment is important in providing valuable insights into the reaction pathways and into the mechanism of adsorption reaction. Indeed, lanthanum and europium adsorption on several materials is now well understood [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36]. However, as far as we know studies about their adsorption on hydroxyapatite have not been done.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Behaviour of La(III) and Eu(III) Ions from Aqueous Solutions by Hydroxyapatite: Kinetic, Isotherm, and Thermodynamic Studies

Granados-Correa

Vilchis-Granados

Jiménez‐Reyes

et al. 2012

Journal of Chemistry

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The hydroxyapatite was successfully synthesized, characterized, and used as an alternative low-cost adsorbent material to study the adsorption behavior of La(III) and Eu(III) ions from nitrate aqueous solutions as a function of contact time, initial metal ion concentration, pH, and temperature by using a bath technique. The kinetic data correspond very well to the pseudo-second-order equation, and in both cases the uptake was affected by intraparticle diffusion. Isotherm adsorption data were well fitted by the Freundlich model equation with1/n>1, indicating a multilayer and cooperative-type adsorption. Thermodynamic parameters for the adsorption systems were determinated at 293, 303, 313, and 323 K. These parameters show that adsorptions of La(III) and Eu(III) ions on hydroxyapatite are endothermic and spontaneous processes. The adsorption was found to follow the order Eu(III) > La(III) and is dependent on ion concentration, pH, and temperature.

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Separation of europium from aqueous solutions using Al3+- and Fe3+-doped zirconium and titanium phosphates

Cited by 24 publications

References 2 publications

Kinetic, Equilibrium and Thermodynamic Studies on the Adsorption of Eu(III) by Eggshell from Aqueous Solutions

Kinetic, Equilibrium and Thermodynamic Studies on the Adsorption of Eu(III) by Eggshell from Aqueous Solutions

Titanium Silicates Precipitated on the Rice Husk Biochar as Adsorbents for the Extraction of Cesium and Strontium Radioisotope Ions

Adsorption Behaviour of La(III) and Eu(III) Ions from Aqueous Solutions by Hydroxyapatite: Kinetic, Isotherm, and Thermodynamic Studies

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