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Abstract <p>Two-dimensional MXene materials are attracting attention as nanoadsorbents for the removal of heavy metals from aqueous media. The adsorption properties of the magnetic composite Ti<sub>3</sub>C<sub>2</sub><i>T</i><sub><i>x</i></sub>/Fe<sub>3</sub>O<sub>4</sub> are investigated in relation to Fe(III) ions. It is found that the sorption capacity is 64.5 mg/g at a composite concentration of less than 10 mg/L. The kinetics of sorption is best described by a pseudo-second-order model, which indicates a chemical interaction between the sorbent and the sorbate. The calculated conditional activation energy (–17 kJ/mol) confirms that the sorption rate is limited by the diffusion stage. The magnetic characteristics of the composite provide the possibility of effective magnetic separation of the material after sorption.</p>

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Sorption of Iron(III) Ions Using a Ti3C2Tx/Fe3O4 Heterostructured Magnetic Composite

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • N. R. Shilov,
  • V. A. Ni,
  • K. E. Magomedov,
  • R. Z. Zeinalov,
  • A. S. Omelyanchik,
  • V. V. Rodionova

摘要

Abstract

Two-dimensional MXene materials are attracting attention as nanoadsorbents for the removal of heavy metals from aqueous media. The adsorption properties of the magnetic composite Ti3C2Tx/Fe3O4 are investigated in relation to Fe(III) ions. It is found that the sorption capacity is 64.5 mg/g at a composite concentration of less than 10 mg/L. The kinetics of sorption is best described by a pseudo-second-order model, which indicates a chemical interaction between the sorbent and the sorbate. The calculated conditional activation energy (–17 kJ/mol) confirms that the sorption rate is limited by the diffusion stage. The magnetic characteristics of the composite provide the possibility of effective magnetic separation of the material after sorption.