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Efficient and selective adsorption of U(VI) by succinic acid modified iron oxide adsorbent

  • Pamarthi Amesh , Konda Athmaram Venkatesan EMAIL logo , Asokan Sudha Suneesh , Manish Chandra , Deepak K. Gupta and Ravindran R. Thoguluva
Published/Copyright: April 15, 2022
Radiochimica Acta
From the journal Radiochimica Acta Volume 110 Issue 5

Abstract

The iron oxide surface was modified with succinic acid moiety and the adsorbent obtained, Fe-SUC, was evaluated for the adsorption of U(VI) (Uranium (VI)) from aqueous solution. The Fe-SUC was characterized by FT-IR (Fourier Transform Infrared Spectroscopy), Raman spectroscopy, thermogravimetry, X-ray diffraction, SEM-EDX (Scanning Electron Microscope - Energy-dispersive X-ray Spectroscopy), and particle size analysis. The adsorption behavior of U(VI) on Fe-SUC was studied as a function of pH, contact time, and concentration of U(VI) in the aqueous phase. The adsorption of U(VI) increased with increase in the pH of aqueous phase, and the adsorption saturation occurred at pH = 6. The kinetic data obtained for the adsorption of U(VI) on Fe-SUC were modeled with the pseudo-first-order and pseudo-second-order rate models. Similarly, the U(VI) adsorption isotherm was fitted with Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich adsorption isotherm models. The Langmuir adsorption capacity of U(VI) on Fe-SUC was about ∼176 mg g−1. The selectivity of the adsorbent toward U(VI) was evaluated in the presence of several possible interfering ions. The adsorbed U(VI) was recovered by 0.5 M sodium carbonate solution and the spent adsorbent was tested for its reusability.

Keywords: iron oxide; Langmuir isotherm; magnetic separation; surface modification; U(VI) adsorption
Corresponding author: Konda Athmaram Venkatesan, Reprocessing Research and Development Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India; and Homi Bhabha National Institute, Anushaktinagar, Mumbai, Maharashtra 400094, India, E-mail:

Acknowledgments

The authors would like to thank Dr. S. Balakrishnan for recording TG curves. The authors also thank to Dr. Manish Chandra for providing scanning electron facility, Mrs D. Annie for XRD, and Mr. G. Jogeswara Rao for particle size analysis.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-10-21
Accepted: 2022-03-22
Published Online: 2022-04-15
Published in Print: 2022-05-25

© 2022 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/ract-2021-1115
Keywords for this article
iron oxide; Langmuir isotherm; magnetic separation; surface modification; U(VI) adsorption

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Spectroscopic investigation of the different complexation and extraction properties of diastereomeric diglycolamide ligands
  4. Influence of plutonium oxidation state on the formation of molecular hydrogen, nitrous acid and nitrous oxide from alpha radiolysis of nitric acid solution
  5. Efficient enrichment of U(VI) by two-dimensional layered transition metal carbide composite
  6. Application of artificial neural networks for predicting the isotopic composition of high burn-up solid plutonium sample using the 90–105 keV gamma-spectrum region
  7. Efficient and selective adsorption of U(VI) by succinic acid modified iron oxide adsorbent
  8. Electrochemical reduction of uranium and rhenium in hydrochloric acid system
  9. A sensitive improved method for analyzing diffusion coefficients of Cs in compacted bentonite with different lengths
  10. Adsorption behavior of chromium in an aqueous suspension of δ-alumina in absence and in presence of humic substances
  11. A novel theranostic probe [111In]In-DO3A-NHS-nimotuzumab in glioma xenograft
  12. Lead-free Sb-based polymer composite for γ-ray shielding purposes
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