Breakthrough in Nanofibers for Water Treatment: Research Highlights Enhanced Photocatalytic Efficiency

Strategic Insights -

Research at the University of Montpellier in France has led to the development of a new type of nanofiber that showcases enhanced photocatalytic efficiency for water treatment applications. The innovative nanofibers, synthesized through atomic layer deposition, have demonstrated superior performance in degrading acetaminophen under visible light. The study, published in Advanced Powder Technology, provides valuable insights into the design and development of advanced light-driven catalysts.

Key Takeaways:

  • The researchers synthesized polyvinylpyrrolidone (PVP)-based titanium dioxide nanofibers using a sol-gel method combined with electrospinning, followed by calcination at 500 degrees C.
  • Nickel oxide (NiO) layers of 5, 10, and 20 nm thickness were deposited onto the nanofibers via atomic layer deposition (ALD), enhancing light absorption, suppressing charge recombination, and improving photocatalytic performance under visible light.
  • The 5 nm NiO-coated fibers exhibited superior performance, achieving 91% degradation of acetaminophen under visible light within 4 hours, compared to 70% for bare TiO2.
  • The researcher's Density Functional Theory (DFT) calculations elucidated that the enhanced photocatalytic efficiency stems from optimized electron-hole separation and improved photon energy retention.
  • The study demonstrated the potential of NiO-TiO2 nanofibers for water treatment applications, providing valuable insights for the development of advanced light-driven catalysts.

Statistics:

  • 91% degradation of acetaminophen under visible light within 4 hours
  • 70% degradation of acetaminophen under visible light within 4 hours for bare TiO2
  • 5 nm NiO-coated fibers maintained their performance over five cycles with a slight reduction of 28%
  • Density Functional Theory (DFT) calculations revealed that the 5 nm NiO-TiO2 composite exhibited optimized electron-hole separation and improved photon energy retention

Sources:

  • NewsRx LLC (2025, September 1). Findings from University of Montpellier Provide New Insights into Nanofibers (Improved Degradation of Acetaminophen With Nio-tio 2 nanofibers Synthesized Through Atomic Layer Deposition). Nanotechnology Weekly, p 810
  • Advanced Powder Technology (2025). Advanced Powder Technology, 36(9) (Elsevier, Radarweg 29, 1043 Nx Amsterdam, Netherlands)
  • University of Montpellier, National Center for Scientific Research (CNRS), Umr 5635, European Membrane Institute, Iem, Enscm, F-34095 Montpellier, France