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<p>This study presents the development of a novel ZnWO<sub>3</sub>/MIL-101(Cr) nanocomposite for the efficient adsorption of Lactoferrin (Lf) from wastewater. The composite was successfully synthesized via a combined precipitation and solvothermal method and thoroughly characterized using Fourier-Transform Infrared Spectroscopy (FT-IR), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Brunauer-Emmett-Teller (BET) techniques. Batch adsorption experiments revealed an exceptional maximum capacity of 60&#xa0;mg/g at an optimal pH of 2.0, with adsorption equilibrium attained within 180&#xa0;min. Kinetic studies demonstrated that the process follows a pseudo-second-order model, indicating chemisorption as the dominant mechanism, while equilibrium isotherm data were best fitted by the Langmuir model, suggesting monolayer adsorption. The nanocomposite exhibited remarkable reusability, retaining approximately 88% of its initial adsorption efficiency after five consecutive cycles, which underscores its practical robustness. Although primarily an adsorbent, the composite’s enhanced visible-light absorption and facilitated charge separation also suggest potential for auxiliary photocatalytic applications. The ZnWO<sub>3</sub>/MIL-101(Cr) nanocomposite emerges as a highly promising, stable, and effective material for the targeted removal of proteins in advanced wastewater treatment processes.</p>

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ZnWO3/MIL-101(Cr) nanocomposite for enhanced Lactoferrin adsorption from wastewater

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月26日

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  • Roozbeh Mofidian,
  • Behnaz Abdi,
  • Hosna Malmir

摘要

This study presents the development of a novel ZnWO3/MIL-101(Cr) nanocomposite for the efficient adsorption of Lactoferrin (Lf) from wastewater. The composite was successfully synthesized via a combined precipitation and solvothermal method and thoroughly characterized using Fourier-Transform Infrared Spectroscopy (FT-IR), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Brunauer-Emmett-Teller (BET) techniques. Batch adsorption experiments revealed an exceptional maximum capacity of 60 mg/g at an optimal pH of 2.0, with adsorption equilibrium attained within 180 min. Kinetic studies demonstrated that the process follows a pseudo-second-order model, indicating chemisorption as the dominant mechanism, while equilibrium isotherm data were best fitted by the Langmuir model, suggesting monolayer adsorption. The nanocomposite exhibited remarkable reusability, retaining approximately 88% of its initial adsorption efficiency after five consecutive cycles, which underscores its practical robustness. Although primarily an adsorbent, the composite’s enhanced visible-light absorption and facilitated charge separation also suggest potential for auxiliary photocatalytic applications. The ZnWO3/MIL-101(Cr) nanocomposite emerges as a highly promising, stable, and effective material for the targeted removal of proteins in advanced wastewater treatment processes.