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Bifunctional collagen fibers-based porous material for integrated purification of oily seawater

  • 0School of Environmental and Nature Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China.
Journal of Hazardous Materials +

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May 21, 2025

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May 21, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

This study developed a collagen fiber material (CFsPM) for oily seawater purification. The enhanced Fe3+-P@CFsPM material efficiently separates emulsions and desalinates seawater using solar energy, offering a sustainable solution.

Area Of Science

  • Materials Science
  • Environmental Science
  • Chemical Engineering

Background

  • Global freshwater scarcity necessitates advanced desalination techniques.
  • Purifying oily seawater presents unique challenges due to the presence of both oil and salt.
  • Developing sustainable and efficient materials is crucial for addressing water resource limitations.

Purpose Of The Study

  • To develop an eco-friendly, bifunctional porous material for oily seawater purification.
  • To enhance collagen fibers (CFs) into a material capable of emulsion separation and solar-driven desalination.
  • To investigate the material's performance, stability, and potential for high-value utilization of collagen.

Main Methods

  • Fabrication of collagen fibers-based porous material (CFsPM) using collagen fibers and hydroxypropyl methylcellulose.
  • Introduction of a Fe3+-tannic acid coordination system into CFsPM to create Fe3+-P@CFsPM.
  • Evaluation of emulsion separation efficiency, flux, photothermal conversion, and solar-driven desalination rate.

Main Results

  • Fe3+-P@CFsPM achieved >99.95% separation efficiency and >5500 L·m-2·h-1 flux for oil-in-water emulsions.
  • The material exhibited enhanced photothermal conversion due to its hierarchical structure and coordination complex.
  • Superior solar-driven seawater evaporation rate (>1.50 kg·m-2·h-1) with produced freshwater meeting WHO standards.

Conclusions

  • The developed Fe3+-P@CFsPM is a highly effective bifunctional material for oily seawater treatment.
  • This approach offers an integrated solution for emulsion separation and solar desalination.
  • It demonstrates a novel pathway for the high-value utilization of collagen fibers in environmental applications.

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