Ссылки

DOI

  • Rawan E. Elbshary
  • Ayman A. Gouda
  • Ragaa El Sheikh
  • Mohammed S. Alqahtani
  • Mohamed Y. Hanfi
  • Bahig M. Atia
  • Ahmed K. Sakr
  • Mohamed A. Gado
A new synthetic material, namely, (3-(((4-((5-(((S)-hydroxyhydrophosphoryl)oxy)-2-nitrobenzylidene) amino) phenyl) imino) methyl)-4-nitrophenyl hydrogen (R)-phosphonate)), was subjected to a quaternary ammonium salt and named (HNAP/QA). Several characterizations, such as FTIR spectrometry, 1H-NMR analysis, 13C-NMR analysis, 31P-NMR Analysis, TGA analysis, and GC-MS analysis, were performed to ensure its felicitous preparation. HNAP/QA is capable of the selective adsorption of W(VI) ions from its solutions and from its rock leachate. The optimum factors controlling the adsorption of W(VI) ions on the new adsorbent were studied in detail. Furthermore, kinetics and thermodynamics were studied. The adsorption reaction fits the Langmuir model. The sorption process of the W(VI) ions is spontaneous due to the negative value of ∆G° calculated for all temperatures, while the positive value of ∆H° proves that the adsorption of the W(VI) ions adsorption on HNAP/QA is endothermic. The positive value of ∆S° suggests that the adsorption occurs randomly. Ultimately, the recovery of W(IV) from wolframite ore was conducted successfully. © 2023 by the authors.
Язык оригиналаАнглийский
Номер статьи7423
ЖурналInternational Journal of Molecular Sciences
Том24
Номер выпуска8
DOI
СостояниеОпубликовано - 2023

    Предметные области ASJC Scopus

  • Inorganic Chemistry
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Computer Science Applications
  • Organic Chemistry
  • Molecular Biology
  • Catalysis

    Предметные области WoS

  • Биохимия и молекулярная биология
  • Химия, Междисциплинарные труды

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