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April 25, 2026Desalination and Water TreatmentOpen Access

Papaya peel valorization for the green synthesis of magnetic Fe₃O₄ nanoparticles for Pb(II) removal from aqueous solutions and mining wastewater

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Authors

HSHugo Sánchez-MorenoDSDanysa Sánchez-FernandezSESandra Escobar-Arrieta

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Overview

Randomized trial evaluates efficient Pb(II) removal in mining wastewater using papaya peel-derived Fe₃O₄ nanoparticles, suggesting environmental benefits.

Key Points

  • The study aims to develop a sustainable magnetic nanoadsorbent for the removal of Pb(II) from aqueous solutions using papaya peel extract.
  • Synthesized Fe₃O₄@PPE using papaya peel extract as a natural reducing agent.
  • Performed batch adsorption experiments while varying pH, adsorbent dosage, contact time, and temperature.
  • Analyzed removal efficiencies in Pb(II)-fortified mining water samples.
  • Achieved Pb(II) removal efficiency of close to 98% under optimal conditions.
  • Obtained maximum adsorption capacity of 18.87 mg g⁻¹ following the Langmuir model.
  • Demonstrated removal efficiencies of 94.64%, 73.06%, and 66.87% in real mining water at concentrations of 10, 20, and 30 mg L⁻¹, respectively.

Cite This Study

Sánchez-Moreno et al. (2026) studied this question.

synapsesocial.com/papers/69ec5a8888ba6daa22dac1a6https://doi.org/10.1016/j.dwt.2026.101774
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