Harnessing Biomass-derived Nanocomposites for Efficient Photocatalytic Degradation of Wastewater Pollutants

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Researchers from the University of the Punjab have discovered a novel method for utilizing biomass-derived nanocomposites to efficiently degrade textile dyes in wastewater. This breakthrough has significant implications for the treatment of wastewater, as it provides a sustainable and efficient solution to the growing problem of water pollution. The study demonstrates the potential of harnessing biomass-derived materials to create effective photocatalysts for wastewater treatment.

Key Takeaways:

  • The research team synthesized nanocomposites using a solvothermal method, varying the weight percentage of C/Fe3O4 in pristine Bi2O3 to optimize photocatalytic performance.
  • The incorporation of C/Fe3O4 into the nanocomposites resulted in a sheet-like morphology with an average crystallite size ranging from 19-51 nm.
  • The photocatalytic properties of the synthesized composites were evaluated against methylene blue (MB) as a model pollutant, with 20 wt.%-C/Fe3O4-Bi2O3 (20-CF:Bi) exhibiting the highest photocatalytic performance of 94% within 90 minutes.
  • The pseudo-first-order kinetics supported the photocatalytic reaction with a highest rate constant of 3.17 x 10-2 min-1 for 20-CF:Bi.
  • The scavenging study revealed the prominent role of superoxide anion and hydroxyl radicals as active species for the photocatalytic degradation of MB.
  • This research has been peer-reviewed and published in Desalination and Water Treatment, 2025;324.

Statistics:

  • 94% photocatalytic performance of 20 wt.%-C/Fe3O4-Bi2O3 (20-CF:Bi) within 90 minutes.
  • Average crystallite size of nanocomposite: 19-51 nm.
  • Highest rate constant of 3.17 x 10-2 min-1 for 20-CF:Bi.
  • Photocatalytic degradation of MB using superoxide anion and hydroxyl radicals: 100% degradation in 90 minutes.

Sources:

  • Desalination and Water Treatment, 2025;324.
  • University of the Punjab, School of Chemistry, Lahore 54000, Pakistan.
  • Elsevier Science Inc, Ste 800, 230 Park Ave, New York, NY 10169, USA.
  • NewsRx LLC.