<p>Organic dyes are difficult to degrade by conventional methods due to their complex structure and chemical stability, which is why nanoparticles have emerged as an effective solution, particularly in photocatalytic processes and chemical reduction. By X-ray diffraction, it was determined that the diffraction pattern corresponds to Jarosite or hydrated iron (III) sulfate. Scanning Electron Microscopy (SEM) showed that the nanoparticles have a round morphology with an average size of 50&#xa0;nm. 30&#xa0;mg of jarosite nanoparticles synthesized via green chemistry were used in 50&#xa0;mL of methylene blue dye at different intervals to see their efficiency in dye removal. Then, ultraviolet–visible spectroscopy (UV–Vis) was used to measure the % of the dye after the use of the nanoparticles, obtaining a remission percentage of 80% in 18&#xa0;min, thus confirming that jarosite nanoparticles synthesized via green chemistry can be used in the degradation of pollutants in water.</p> Graphical abstract <p></p>

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Synthesis of iron sulphate nanoparticles KFe3(SO4)2 via green chemistry for the removal of water contaminants

  • E. Gandara Martinez,
  • N. Elizondo Villarreal,
  • F. J. Vázquez Rodríguez,
  • L. H. Verastegui,
  • A. M. Guzmán Hernández,
  • D. I. Martinez Delgado

摘要

Organic dyes are difficult to degrade by conventional methods due to their complex structure and chemical stability, which is why nanoparticles have emerged as an effective solution, particularly in photocatalytic processes and chemical reduction. By X-ray diffraction, it was determined that the diffraction pattern corresponds to Jarosite or hydrated iron (III) sulfate. Scanning Electron Microscopy (SEM) showed that the nanoparticles have a round morphology with an average size of 50 nm. 30 mg of jarosite nanoparticles synthesized via green chemistry were used in 50 mL of methylene blue dye at different intervals to see their efficiency in dye removal. Then, ultraviolet–visible spectroscopy (UV–Vis) was used to measure the % of the dye after the use of the nanoparticles, obtaining a remission percentage of 80% in 18 min, thus confirming that jarosite nanoparticles synthesized via green chemistry can be used in the degradation of pollutants in water.

Graphical abstract