Ion exchange studies of europium on uranium antimonate

Sivaiah, M. V.; Venkatesan, K. A.; Krishna, Rallabhandi Murali; Sasidhar, P. V. K.; Murthy, G. S.

doi:10.1016/j.colsurfa.2004.02.006

Cited by 15 publications

(8 citation statements)

References 22 publications

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“…The structural characterization of uranium antimonate is described in our earlier publication [9] and thus it is briefly Brought to you by | New York University Bobst Library Technical Services Authenticated Download Date | 5/29/15 1:32 PM discussed in this paper. The X-ray diffraction pattern of uranium antimonate (as prepared) indicated that it is poorly crystalline and the ratio of U : Sb present in the sample was found to be 1/3.…”

Section: Resultsmentioning

confidence: 99%

“…Uranium antimonate was prepared by procedure described elsewhere [9]. Briefly it involves drop wise addition of 200 mL of 0.05 M uranyl nitrate to a hot solution of 200 mL of 0.1 M potassium pyroantimonate.…”

Section: Preparation Of Uranium Antimonatementioning

confidence: 99%

“…Thus, we have prepared uranium antimonate and studied for the rate of uptake of europium on it [9]. It was found that the rate of sorption of europium on USb was controlled by the diffusion of europium into the particles when the concentration of europium in aqueous phase was not less than 2.5 × 10 −3 M and the diffusion coefficients (D i ) was of the order of ∼ 10 −8 cm 2 s −1 .…”

Section: Introductionmentioning

confidence: 98%

“…They also indicated that not many sorbents are effective in the separation of fission products especially strontium from acidic liquid wastes and have suggested the need to develop new inorganic sorbents to accomplish these tasks. In this direction, various synthetic inorganic sorbents were prepared by us and evaluated for the removal of fission products from acidic streams [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Ion exchange and chromatographic separation of cesium, strontium and europium from acidic streams using uranium antimonate

Sivaiah¹,

Venkatesan²,

Krishna³

et al. 2004

Radiochimica Acta

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Ion exchange properties of cesium, strontium and europium on uranium antimonate (USb) from nitric acid medium was studied. The distribution coefficient (K d ) of 1046 mL/g for cesium, 2464 mL/g for strontium and ∼ 10 5 mL/g for europium were obtained for sorption from 0.01 M nitric acid and K d decreased with increase in the concentration of nitric acid. Rapid sorption of metal ions in the initial stages of equilibration followed by the establishment of equilibrium after 24 hours. Cesium sorption on USb follows ideal ion exchange while strontium and europium do not. From Langmuir adsorption model for the sorption of these ions on USb, the apparent sorption capacity was found to be of 6.9 mg/g for cesium, 19.1 mg/g for strontium and 37.2 mg/g for europium at 300 K. The enthalpy change (∆H • ) accompanied by the sorption was determined by the temperature variation method. The performance of the sorbent under dynamic conditions was assessed by following a breakthrough (BT) curve up to C/C 0 = 1. Extraction chromatography of individual ions from the mixture using USb was also reported in this paper.

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Section: Resultsmentioning

confidence: 99%

Section: Preparation Of Uranium Antimonatementioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ion exchange and chromatographic separation of cesium, strontium and europium from acidic streams using uranium antimonate

Sivaiah¹,

Venkatesan²,

Krishna³

et al. 2004

Radiochimica Acta

Self Cite

View full text Add to dashboard Cite

show abstract

“…They also indicated that not many inorganic adsorbents can effectively execute the separation of fission products from acidic liquid wastes and suggested the need to develop new inorganic adsorbents that can function under these conditions. A literature survey indicated that various synthetic inorganic adsorbents were prepared and evaluated for the removal of fission products from acidic wastes [6][7][8][9][10][11][12][13][14][15][16][17][18]. Also, study of sorption kinetics in wastewater treatment is important in providing valuable insights into the reaction pathways and into the mechanism of sorption reaction.…”

Section: Introductionmentioning

confidence: 99%