Nanosorbent Demonstrates High Potential in Wastewater Treatment

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Researchers at GLA University in India have made significant progress in the development of a nanosorbent capable of efficiently removing an anionic dye from contaminated water. The polypyrrole-coated cobalt ferrite magnetic nanosorbent, referred to as PPy@CoFe2O4, has shown remarkable potential in wastewater treatment. According to the study, the nanosorbent demonstrated high removal efficiency and stability, even after multiple desorption-adsorption cycles. The research findings highlight the potential of PPy@CoFe2O4 as a highly effective adsorbent for treating wastewater contaminated with anionic dyes.

Key Takeaways:

  • The PPy@CoFe2O4 nanosorbent was prepared via in-situ polymerization of pyrrole on CoFe2O4 nanoparticles.
  • Scanning electron microscopy (SEM) analysis revealed spherical nanoparticles with sizes around 50 nm.
  • The nanosorbent adhered to a pseudo-second-order kinetic model, with an equilibrium time of 50 min.
  • The Langmuir model accurately simulated the adsorption isotherms, with a maximum monolayer adsorption capacity of 85.25 mg g⁻¹.
  • The removal efficiency remained above 90% after five desorption-adsorption cycles.
  • The research concluded that PPy@CoFe2O4 is a highly effective adsorbent for treating wastewater contaminated with anionic dyes.

Statistics:

  • The nanosorbent demonstrated a maximum monolayer adsorption capacity of 85.25 mg g⁻¹.
  • The Langmuir model accurately simulated the adsorption isotherms, with a correlation coefficient (R²) of 0.99.
  • The removal efficiency remained above 90% after five desorption-adsorption cycles.
  • The equilibrium time was determined to be 50 min.
  • The temperature-dependent adsorption studies revealed a negative ΔG° and ΔH°, indicating spontaneous adsorption.

Sources:

  • Polypyrrole-coated Cobalt Ferrite Nano-sorbent for Efficient Removal of Fast Green Dye: a Kinetic and Thermodynamic Approach. Russian Journal of Physical Chemistry B, 2025; 19(2): 466-479.
  • GLA University, Department of Chemistry, Mathura 281006, Uttar Pradesh, India.
  • Council of Science and Technology, U.P, CST UP.
  • NewsRx LLC.