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Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification
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High-Performance Boron Nitride-Based Membranes for Water Purification.

Natalia García Doménech1,2, Finn Purcell-Milton1,2, Adrián Sanz Arjona1

  • 1School of Chemistry, Trinity College Dublin, D02 PN40 Dublin, Ireland.

Nanomaterials (Basel, Switzerland)
|February 15, 2022
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Summary

New boron nitride (BN) 2D nanosheet membranes offer superior water purification. These environmentally friendly nanofiltration membranes achieve nearly 100% removal of water-soluble dyes, showcasing sustainable separation technology potential.

Keywords:
2D nanomaterialsmembranesnanofiltrationseparation technologiessustainablewater purification

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Area of Science:

  • Materials Science
  • Environmental Science
  • Nanotechnology

Background:

  • Nanotechnology offers sustainable solutions for water purification.
  • Two-dimensional (2D) nanomaterials are promising for advanced nanofiltration membranes.

Purpose of the Study:

  • To produce, characterize, and test nanofiltration membranes from water-exfoliated boron nitride (BN) 2D nanosheets.
  • To evaluate the performance of these membranes in water purification and dye removal.
  • To compare water-exfoliated BN membranes with those produced using sonication in organic solvents.

Main Methods:

  • Fabrication of nanofiltration membranes using water-exfoliated boron nitride (BN) 2D nanosheets.
  • Characterization of the developed BN membranes.
  • Testing membrane performance for water purification, including the removal of methyl orange, methylene blue, and Evans blue dyes.
  • Comparative analysis with BN membranes produced via sonication-assisted liquid exfoliation in organic solvents.

Main Results:

  • Water-exfoliated BN membranes achieved near 100% retention of water-soluble dyes (methyl orange, methylene blue, Evans blue).
  • Membranes fabricated from water-exfoliated BN demonstrated superior performance compared to those produced using sonication in organic solvents.
  • The developed membranes show high efficiency in water purification applications.

Conclusions:

  • Water-exfoliated BN 2D nanosheets are highly effective for creating high-performance, environmentally friendly nanofiltration membranes.
  • This research presents a novel opportunity for developing sustainable separation technologies.
  • The findings support the advancement of nanotechnology-based water purification methods.