Studies on the uptake of Am(III) and Eu(III) on ionic liquid modified polystyrene-divinyl benzene
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K. Dasthaiah
,
M. P. Antony
Abstract
Imidazolium bis(2-ethylhexyl)phosphate ionic liquid was anchored on a polystyrene-divinylbenzene (PS-DVB) copolymer and the product (R-Im-DEHP) was studied for the extraction of Am(III) and Eu(III) from dilute nitric acid medium to examine the feasibility using the anchored adsorbent for their mutual separation. The effect of various parameters such as the duration of equilibration, concentration of nitric acid, europium ion, and diethylenetriaminepentaacetic acid (DTPA) in aqueous phase on the distribution coefficient (Kd) of Am(III) and Eu(III) was studied. The distribution coefficient of Am(III) and Eu(III) decreased with increase in the concentration of nitric acid. Rapid extraction of metal ions in the initial stages of equilibration followed by the establishment of equilibrium occurred within 4 h. The data on the rate of uptake of Am(III) and Eu(III) were fitted into pseudo-first order and pseudo-second order rate equation. The extraction isotherm was fitted to Langmuir and Freundlich adsorption models and the apparent europium extraction capacity was determined. The mechanism of extraction was elucidated and the conditions needed for efficient separation of Am(III) from Eu(III) was optimized using DTPA. The study indicated the possibility of using R-Im-DEHP for the separation of Eu(III) from Am(III) with high separation factors.
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©2018 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Studies on the uptake of Am(III) and Eu(III) on ionic liquid modified polystyrene-divinyl benzene
- Performance evaluation of hollow fiber renewal liquid membrane for extraction of uranium(VI) from acidic sulfate solution
- Effect of carbonate on U(VI) sorption by nano-crystalline α-MnO2
- Comparison of some organic and inorganic ion exchangers concerning the sorption of Ce(III), Te(IV), Zr(IV), Hf(IV) and Nb(V)
- Evaluation of Mn bioaccumulation and biosorption by bacteria isolated from spent nuclear fuel pools using 54Mn as a radioindicator
- Preparation and biological evaluation of 99mTc N-histamine as a model for brain imaging: in silico study and preclinical evaluation
- Radiolysis products and degradation mechanism studies on tri-isoamyl phosphate (TiAP)
- Effects of γ irradiation on bis(2-ethylhexyl)phosphoric acid supported by macroporous silica-based polymeric resins
Articles in the same Issue
- Frontmatter
- Studies on the uptake of Am(III) and Eu(III) on ionic liquid modified polystyrene-divinyl benzene
- Performance evaluation of hollow fiber renewal liquid membrane for extraction of uranium(VI) from acidic sulfate solution
- Effect of carbonate on U(VI) sorption by nano-crystalline α-MnO2
- Comparison of some organic and inorganic ion exchangers concerning the sorption of Ce(III), Te(IV), Zr(IV), Hf(IV) and Nb(V)
- Evaluation of Mn bioaccumulation and biosorption by bacteria isolated from spent nuclear fuel pools using 54Mn as a radioindicator
- Preparation and biological evaluation of 99mTc N-histamine as a model for brain imaging: in silico study and preclinical evaluation
- Radiolysis products and degradation mechanism studies on tri-isoamyl phosphate (TiAP)
- Effects of γ irradiation on bis(2-ethylhexyl)phosphoric acid supported by macroporous silica-based polymeric resins
