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Enhanced adsorption performance of magnetic Ni0.5Zn0.5Fe2O4/Zn0.95Co0.05O nanocomposites for the removal of malachite green dye.
Aridi, Amani; Basma, Hadi; Chehade, Warde; Sayed Hassan, Roudaina; Yaacoub, Nader; Naoufal, Daoud; Awad, Ramadan.
Afiliación
  • Aridi A; Department of Chemistry, Faculty of Science, Beirut Arab University, Beirut, Lebanon. a.aridi@bau.edu.lb.
  • Basma H; Inorganic and Organometallic Coordination Chemistry Laboratory, Faculty of Sciences I, Lebanese University, Hadath, Lebanon. a.aridi@bau.edu.lb.
  • Chehade W; Department of Physics, Faculty of Science, Beirut Arab University, Beirut, Lebanon.
  • Sayed Hassan R; Department of Physics, Faculty of Science, Beirut Arab University, Beirut, Lebanon.
  • Yaacoub N; Department of Physics, Faculty of Science, Lebanese University, Beirut, Lebanon.
  • Naoufal D; IMMM, Université du Mans, CNRS, UMR-6283, Avenue Olivier Messiaen, 72085, Le Mans, France.
  • Awad R; Inorganic and Organometallic Coordination Chemistry Laboratory, Faculty of Sciences I, Lebanese University, Hadath, Lebanon.
Environ Sci Pollut Res Int ; 30(20): 58399-58411, 2023 Apr.
Article en En | MEDLINE | ID: mdl-36991201
This investigation reports the synthesis and characterization of (1-x)Ni0.5Zn0.5Fe2O4/(x)Zn0.95Co0.05O nanocomposites, with 0.0 ≤ × ≤ 0.5. Fourier transform infrared (FTIR) and Raman spectroscopies confirmed the purity of the samples and the presence of bands corresponding to octahedral and tetrahedral iron occupancies for Ni0.5Zn0.5Fe2O4 nanoparticles. A shift in peak positions of these bands was detected upon the addition of Zn0.95Co0.05O nanoparticles. The magnetic properties of the nanocomposites were examined using Mössbauer spectrometry at both room temperature and 77 K. Room temperature analysis showed the existence of both ferromagnetic and superparamagnetic behaviors, while at 77 K, all nanocomposites showed ferromagnetic behavior. The adsorption performance of the nanocomposite on the removal of malachite green (MG) dye solution was investigated by varying the contact time, adsorbent concentration, and reaction temperature. The adsorption reaction followed the second-order kinetics and the sample with x = 0.3 showed the highest adsorption rate. The adsorption rate showed an increase with the increase in the reaction temperature. The adsorption isotherm was determined by applying different adsorption isotherms (Langmuir, Freundlich, and Temkin isotherms), and the results are well-fitted with the Langmuir theoretical model.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Nanocompuestos Idioma: En Revista: Environ Sci Pollut Res Int Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: Líbano Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Nanocompuestos Idioma: En Revista: Environ Sci Pollut Res Int Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: Líbano Pais de publicación: Alemania