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<p>MgAl<sub>2</sub>O<sub>4</sub>/CoFe<sub>2</sub>O<sub>4</sub>/Zeolite A magnetic nanocomposite has been designed and fabricated as an efficacious adsorbent to eliminate methylene blue (MB) from aqueous solutions. The influence of the nanocomposite chemical composition and as well as the adsorption conditions on the MB removal efficiency has been perused. The comparative study of kinetic models defined which the MB adsorption onto the nanocomposite followed pseudo-second-order kinetics. Pursuant to the experimental results analyzed using Langmuir isotherm, the maximum adsorption capacity of MB on the nanocomposite was 19.33&#xa0;mg/g. Under optimal adsorption conditions including a temperature of 50&#xa0;°C, a contact time of 30&#xa0;min, an adsorbent dosage of 0.3&#xa0;g, a pH 12 and an adsorbed initial concentration of 40&#xa0;mg.L<sup>−1</sup>, a removal efficiency of 99.9% was achieved. The thermodynamic investigation of MB adsorption onto the nanocomposite recognized that the process was endothermic and accompanied by an increase in entropy.</p> Graphical Abstract <p></p>

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MgAl2O4/CoFe2O4/Zeolite A magnetic ceramic nanocomposite for efficacious elimination of Methylene blue from aqueous solutions: composition influence

  • 期刊论文

  • 发表日期：

    2025年7月16日

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  • Sania Sanjabi,
  • Alireza Salehirad

摘要

MgAl2O4/CoFe2O4/Zeolite A magnetic nanocomposite has been designed and fabricated as an efficacious adsorbent to eliminate methylene blue (MB) from aqueous solutions. The influence of the nanocomposite chemical composition and as well as the adsorption conditions on the MB removal efficiency has been perused. The comparative study of kinetic models defined which the MB adsorption onto the nanocomposite followed pseudo-second-order kinetics. Pursuant to the experimental results analyzed using Langmuir isotherm, the maximum adsorption capacity of MB on the nanocomposite was 19.33 mg/g. Under optimal adsorption conditions including a temperature of 50 °C, a contact time of 30 min, an adsorbent dosage of 0.3 g, a pH 12 and an adsorbed initial concentration of 40 mg.L−1, a removal efficiency of 99.9% was achieved. The thermodynamic investigation of MB adsorption onto the nanocomposite recognized that the process was endothermic and accompanied by an increase in entropy.

Graphical Abstract