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<p>Iron-aluminium oxide nanoparticles prepared by electric spark ablation were deposited on polyacrylonitrile (PAN) membranes via electrostatic spinning to fabricate FeAl-ESA@PAN fibrous membranes for phosphorus removal from aqueous environments. Due to the nano constraints of the fiber membrane, the problem of unfavorable recycling and reuse of metal oxides in powder form is effectively solved. It was modified by using magnetic medium Fe, which not only improved the adsorption performance and service life of the adsorbent material, but also reduced the production cost. The adsorption experiments showed that the adsorption capacity of FeAl-ESA@PAN for phosphate was 21.05 mg·g<sup>− 1</sup> and the variables such as reaction time, pH and coexisting ions had a significant effect on the adsorption capacity. The influence of FeAl-ESA@PAN on phosphorus removal from lake water was investigated for Qilu Lake (Yunnan, China) as an example, and the total phosphorus removal rate observed was 94.01%. A series of characterizations indicated that electrostatic adsorption, hydrogen bonding, complexation, and ion-exchange were the main mechanisms of phosphorus removal.</p>

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Phosphorus Removal Performance of Spark-deposited Iron and Aluminium Metal Oxide Nanoparticles on Polyacrylonitrile Membranes

  • 期刊论文

  • 发表日期：

    2026年1月26日

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  • Wei Zhao,
  • Zhengyuan Shang,
  • Yandun Jin,
  • Huipeng Zhou,
  • Jianan Yao,
  • Zhiyang Yang,
  • Yanbo Zeng,
  • Fengqin Chang

摘要

Iron-aluminium oxide nanoparticles prepared by electric spark ablation were deposited on polyacrylonitrile (PAN) membranes via electrostatic spinning to fabricate FeAl-ESA@PAN fibrous membranes for phosphorus removal from aqueous environments. Due to the nano constraints of the fiber membrane, the problem of unfavorable recycling and reuse of metal oxides in powder form is effectively solved. It was modified by using magnetic medium Fe, which not only improved the adsorption performance and service life of the adsorbent material, but also reduced the production cost. The adsorption experiments showed that the adsorption capacity of FeAl-ESA@PAN for phosphate was 21.05 mg·g− 1 and the variables such as reaction time, pH and coexisting ions had a significant effect on the adsorption capacity. The influence of FeAl-ESA@PAN on phosphorus removal from lake water was investigated for Qilu Lake (Yunnan, China) as an example, and the total phosphorus removal rate observed was 94.01%. A series of characterizations indicated that electrostatic adsorption, hydrogen bonding, complexation, and ion-exchange were the main mechanisms of phosphorus removal.