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Highly efficient adsorption of uranyl ions using hydroxamic acid-functionalized graphene oxide

  • Mohamed A. Gado EMAIL logo , Bahig M. Atia , Mohamed F. Cheira , Mohamed E. Elawady and Mohamed Demerdash
Published/Copyright: July 19, 2021
Radiochimica Acta
From the journal Radiochimica Acta Volume 109 Issue 10

Abstract

A chelating matrix prepared by immobilizing N-hydroxyl amine onto graphene oxide functionalized with aspartic acid (GO-HDX) was applied to recover UO2 2+ from their SO4 2− leach liquor. SEM-EDAX, FT-IR, TGA, and XRD instruments, in addition, Raman spectroscopy (IR-Raman), were used to analyze the synthesized GO-HDX. The static extraction technique optimized various physicochemical parameters that impacted the UO2 2+ extraction. The optimal pH, time of contact, initial concentration, GO-HDX dose, temp., foreign ions, and eluting agents were gained. The experimental equilibrium documents were assessed using Langmuir and Freundlich equations. The Langmuir equation model quite fits the investigational adsorption data with a maximum uptake of 277.78 mg/g, and it implied the attending of monolayer coverage of adsorbed molecules. Pseudo-first- and pseudo-second-order analyses were done to inspect the kinetic results. The data indicated that pseudo-second-order kinetics fit all concentrations. The intended thermodynamic factors were ∆G° negative values and ∆H° positive value. The data signified that the UO2 2+ extraction onto GO-HDX was spontaneous adsorption and endothermic at higher temperatures. The regeneration efficiency of GO-HDX was 98% using 1 M HCl.

Keywords: adsorption; aspartic acid; graphene oxide; hydroxamic acid; uranium
Corresponding author: Mohamed A.Gado, Nuclear Materials Authority, El Maadi, Cairo, Egypt, E-mail:

  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: 2021-06-06
Accepted: 2021-07-01
Published Online: 2021-07-19
Published in Print: 2021-10-26

© 2021 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Excitation functions of some deuteron-induced nuclear reactions on Al
  4. Radiochemical separation and purification of non-carrier-added silicon-32
  5. Highly efficient adsorption of uranyl ions using hydroxamic acid-functionalized graphene oxide
  6. Effect of Zr(IV) to phosphorus ratio on U(VI) adsorption by diethylenetriamine-pentamethylene phosphate Zr(IV) hybrids
  7. 125I–Amoxicillin preparation as a guide tracer for inflammation detection
  8. Comparative impact of gamma radiation on reinforced nitrile rubber with graphite and agro waste activated carbons
  9. Review
  10. Radon concentration in compressed natural gas and liquefied petroleum gas and its release range in residential houses
https://doi.org/10.1515/ract-2021-1063
Keywords for this article
adsorption; aspartic acid; graphene oxide; hydroxamic acid; uranium

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Excitation functions of some deuteron-induced nuclear reactions on Al
  4. Radiochemical separation and purification of non-carrier-added silicon-32
  5. Highly efficient adsorption of uranyl ions using hydroxamic acid-functionalized graphene oxide
  6. Effect of Zr(IV) to phosphorus ratio on U(VI) adsorption by diethylenetriamine-pentamethylene phosphate Zr(IV) hybrids
  7. 125I–Amoxicillin preparation as a guide tracer for inflammation detection
  8. Comparative impact of gamma radiation on reinforced nitrile rubber with graphite and agro waste activated carbons
  9. Review
  10. Radon concentration in compressed natural gas and liquefied petroleum gas and its release range in residential houses
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