Utilization of low-cost sorbent for removal and separation of 134Cs, 60Co and 152+154Eu radionuclides from aqueous solution

Metwally, S.S.; Ayoub, R. R.; Aly, H. F.

doi:10.1007/s10967-014-3185-z

Cited by 44 publications

(12 citation statements)

References 31 publications

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“…Hitherto, the techniques for the removal of Cs + and Sr 2+ ions mainly include solvent extraction, membrane filtration, precipitation, adsorption, ion exchange, etc. − Among them, the ion exchange method is promising due to its convenience, less secondary pollution, and an effective decrease in solid waste volume. , Traditional inorganic ion exchangers such as zeolites, , ferrous metal cyanide compounds, , heteropoly acid salts, and titanium silicate − have been studied for the removal of Cs + and Sr 2+ ions. However, their performances are greatly reduced under acidic conditions.…”

Section: Introductionmentioning

confidence: 99%

Rapid and Selective Uptake of Cs⁺ and Sr²⁺ Ions by a Layered Thiostannate with Acid–Base and Irradiation Resistances

Jin

Zhang

et al. 2021

ACS EST Water

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137 Cs + and 90 Sr 2+ are highly soluble, highly environmentally mobile, and strongly radiotoxic. Efficiently sequestering 137 Cs + and 90 Sr 2+ ions from aqueous solutions remains a serious challenge, especially from acidic environments because of the effects of protonation and poor stabilities of materials. Here, efficient removal of Cs + and Sr 2+ ions is achieved by a layered thiostannate, namely [(EtNH 3 ) 1.68 (Et 2 NH 2 ) 0.32 ]Sn 3 S 7 •0.68H 2 O (FJSM-SnS-4), which exhibits excellent acid−base and β and γ irradiation resistances. FJSM-SnS-4 possesses high maximum adsorption capacities and rapid kinetics for Cs + and Sr 2+ ions under neutral conditions. It can even capture Cs + ions under acidic conditions (e.g., pH 1.6 and 0.4). It is interesting that FJSM-SnS-4 has excellent selectivity for Sr 2+ ions in neutral environments, whereas it prefers capturing Cs + from 1 M HCl solutions with coexisting K + , Na + , Ca 2+ , Mg 2+ , and Sr 2+ ions. The Cs + and Sr 2+ adsorption mechanism has been revealed at the molecular level by single-crystal structural analysis coupled with XPS, EXAFS, and EA characterization, that is, ion exchange between Cs + and Sr 2+ ions and protonated organic amines in interlayer space owing to the flexibility of the current layered thiostannate framework and the strong affinity of the soft basic S 2− of the framework for Cs + and Sr 2+ ions.

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Section: Introductionmentioning

confidence: 99%

Rapid and Selective Uptake of Cs⁺ and Sr²⁺ Ions by a Layered Thiostannate with Acid–Base and Irradiation Resistances

Jin

Zhang

et al. 2021

ACS EST Water

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“…The effect of ARS concentration on its sorption onto LDH-CO3 and SDS-LDH with a V/m ratio 200 mL/g was investigated in the range 100-250 mg/L at ambient temperature, Fig. 14. indicates that the amount of ARS sorbed onto the sorbents increased with increasing the initial dye concentration due to increasing the driving force for mass transfer with the increase in ARS concentration [54].…”

Section: Effect Of Ars Concentrationmentioning

confidence: 99%

Mg-Cr layered double hydroxide (LDH) intercalated with sodium dodecyl sulfate as sorbent for Alizarine Red-S in aqueous solutions

Ahmed

2021

Arab Journal of Nuclear Sciences and Applications

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Mg 2+ /Cr 3+-LDH, (LDH-CO 3) with Mg/Cr molar ratio 2.0 and intercalated LDH with an anionic surfactant, sodium dodecyl sulphate, SDS-LDH were synthesized by co-precipitation method and was used for the sorption of Alizarine RedS (ARS) as anionic organic dye. The prepared adsorbents were characterized by FTIR, XRD, TGA and surface area. The influence of pH of the medium, shaking time, dye concentration and adsorbents dose on the sorption process were investigated. The kinetics of the sorption process was estimated using the pseudo first-order, pseudo second-order, intra particle diffusion and Elovich kinetic model. The results of LDH-CO 3 fitted well with the pseudo-firstorder model while the pseudo-second-order model fitted with SDS-LDH results. The obtained results indicated that the intercalation with SDS enhanced the sorption process and can be considered as a promising adsorbent for the removal of anthraquinone compounds from wastewater. Regeneration of the adsorbent was achieved using 0.1 M sodium hydroxide solution.

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“…In addition, the extent of adsorption of the ion species from the solutions is positively proportional to the physical properties of the surface of the solid adsorbent material. So, the capacity of any solute of any solutions using a solid-phase sorbent material is affected by its physical and chemical properties [17][18][19][20][21][22][23].…”

Section: Main Characteristics Of Camw As a New Adsorbentmentioning

confidence: 99%

Preparation and Evaluation of a material containing both micropores and mesopores as a dual-function adsorbent for removal of cationic and anionic species from aqueous solutions

Ali

Abdel-Galil

Hamed

2022

Arab Journal of Nuclear Sciences and Applications

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The sorption potency of any material toward different radionuclides is closely related to porous structures and the surface functional groups. In this research, we report the process conditions to attain a new low-cost carbonaceous adsorbent from mint waste (CAMW) containing both micro-and meso-pores. The new sorbent was analyzed using various analytical techniques. From the study of surface properties, it was found that synthesized material possesses a high surface-area (BET) of 735.75 m 2 /g, Langmuir surface area of 1015.0 m 2 /g, total pore volume of 0.596 cm 3 /g, and the average pore diameter of 0.60 nm with a reasonable yield, 32.4%. Radionuclides contamination in the aquatic environment has become a dangerous threat today. Removal and recovery of these species (anionic and cationic radionuclides) before extrusion into the environment is essential for the safety of organisms. Therefore, we evaluated removal efficiencies of this new carbonaceous material as a dual-function sorbent for the retention of cations (Cs(I), Co(II), Sr(II) and Eu(III)) and anions (Cr(VI) and Mo(VI)) from aqueous solutions. Sorptive removal of various radionuclides (cationic and anionic species) from environmental samples confirmed the validity of results gained in these studies. All these values indicate that prepared CAMW possesses excellent adsorption capacity for both cationic and anionic radionuclides and can generally be considered as an advanced adsorbent.

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Utilization of low-cost sorbent for removal and separation of 134Cs, 60Co and 152+154Eu radionuclides from aqueous solution

Cited by 44 publications

References 31 publications

Rapid and Selective Uptake of Cs⁺ and Sr²⁺ Ions by a Layered Thiostannate with Acid–Base and Irradiation Resistances

Rapid and Selective Uptake of Cs⁺ and Sr²⁺ Ions by a Layered Thiostannate with Acid–Base and Irradiation Resistances

Mg-Cr layered double hydroxide (LDH) intercalated with sodium dodecyl sulfate as sorbent for Alizarine Red-S in aqueous solutions

Preparation and Evaluation of a material containing both micropores and mesopores as a dual-function adsorbent for removal of cationic and anionic species from aqueous solutions

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Utilization of low-cost sorbent for removal and separation of 134Cs, 60Co and 152+154Eu radionuclides from aqueous solution

Cited by 44 publications

References 31 publications

Rapid and Selective Uptake of Cs+ and Sr2+ Ions by a Layered Thiostannate with Acid–Base and Irradiation Resistances

Rapid and Selective Uptake of Cs+ and Sr2+ Ions by a Layered Thiostannate with Acid–Base and Irradiation Resistances

Mg-Cr layered double hydroxide (LDH) intercalated with sodium dodecyl sulfate as sorbent for Alizarine Red-S in aqueous solutions

Preparation and Evaluation of a material containing both micropores and mesopores as a dual-function adsorbent for removal of cationic and anionic species from aqueous solutions

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Rapid and Selective Uptake of Cs⁺ and Sr²⁺ Ions by a Layered Thiostannate with Acid–Base and Irradiation Resistances

Rapid and Selective Uptake of Cs⁺ and Sr²⁺ Ions by a Layered Thiostannate with Acid–Base and Irradiation Resistances