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Encapsulated polymeric beads impregnating unexplored amide, N,N′-bis(2-ethyl hexyl) α-hydroxy acetamide (BEHGA) – preparation, sorption and kinetic studies for tri-, tetra- and hexavalent radionuclides

  • S. Pahan , K.K. Singh , P. Sinha Roy , S. Panja EMAIL logo , P.S. Dhami EMAIL logo , J.N. Sharma , C.P. Kaushik , M. Kumar and J.S. Yadav
Published/Copyright: January 20, 2018
Radiochimica Acta
From the journal Radiochimica Acta Volume 106 Issue 4

Abstract

Removal of actinides (trivalent, tetravalent and hexavalent) from nitric acid medium was studied using solid-liquid extraction technique employing polymeric encapsulated beads (PEBs) using an indigenously synthesized, unexplored novel monoamide, N,N′-bis(2-ethyl hexyl) α-hydroxy acetamide (BEHGA). The PEBs were synthesized by phase inversion technique. The structure and morphology of the synthesized PEBs were evaluated by employing various characterization techniques like FT-IR, TGA and SEM. The well characterized PEBs were studied for its Am(III), Pu(IV) and U(VI) sorption behavior from nitric acid medium. Kinetics studies showed that the sorption is fast with equilibrium being reached within 60 min of equilibration. The sorption mechanism follows pseudo-second-order mechanism with intraparticle diffusion playing an important role. Langmuir isotherm model was found to best describe the sorption isotherm. The maximum Am(III) sorption capacity of the PEBs was found to be 8.45 mg/g (experimental) and 8.43 mg/g (Langmuir). Back extraction was possible using 0.5 M HNO3. Stability of the PEBs was found to be quite good with no significant structural deformation or leaching out of the extractant in 4.0 M HNO3 solution for at least up to 8 days.

Keywords: PEB; BEHGA; actinides; Langmuir; stability

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Supplemental Material:

The online version of this article offers supplementary material (https://doi.org/10.1515/ract-2017-2814).

Received: 2017-4-18
Accepted: 2017-9-29
Published Online: 2018-1-20
Published in Print: 2018-3-28

©2018 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Redox behavior and solubility of plutonium under alkaline, reducing conditions
  3. Effects of temperature on the extraction of U(VI) and Pu(IV) by tris(2-methylbutyl) phosphate from nitric acid media
  4. Interaction of salicylic acid with zirconium diphosphate and its reactivity toward uranium (VI)
  5. Complexation of a macrocyclic ligand, 2,6-di (N-methyl)formamide-calix[4]pyridine, with Eu(III) and extraction of Eu(III) and Am(III)
  6. Feasibility studies of using N,N-dihexyloctanamide (DHOA) for fast reactor fuel reprocessing applications
  7. Encapsulated polymeric beads impregnating unexplored amide, N,N′-bis(2-ethyl hexyl) α-hydroxy acetamide (BEHGA) – preparation, sorption and kinetic studies for tri-, tetra- and hexavalent radionuclides
  8. Radioiodination of olmesartan medoxomil and biological evaluation of the product as a tracer for cardiac imaging
  9. Investigation of chemical composition and moisture content for different materials on the attenuation of γ rays
https://doi.org/10.1515/ract-2017-2814
Keywords for this article
PEB; BEHGA; actinides; Langmuir; stability

Articles in the same Issue

  1. Frontmatter
  2. Redox behavior and solubility of plutonium under alkaline, reducing conditions
  3. Effects of temperature on the extraction of U(VI) and Pu(IV) by tris(2-methylbutyl) phosphate from nitric acid media
  4. Interaction of salicylic acid with zirconium diphosphate and its reactivity toward uranium (VI)
  5. Complexation of a macrocyclic ligand, 2,6-di (N-methyl)formamide-calix[4]pyridine, with Eu(III) and extraction of Eu(III) and Am(III)
  6. Feasibility studies of using N,N-dihexyloctanamide (DHOA) for fast reactor fuel reprocessing applications
  7. Encapsulated polymeric beads impregnating unexplored amide, N,N′-bis(2-ethyl hexyl) α-hydroxy acetamide (BEHGA) – preparation, sorption and kinetic studies for tri-, tetra- and hexavalent radionuclides
  8. Radioiodination of olmesartan medoxomil and biological evaluation of the product as a tracer for cardiac imaging
  9. Investigation of chemical composition and moisture content for different materials on the attenuation of γ rays
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