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Demonstrates effective lead ion removal in aqueous solutions, indicating a viable solution for water purification.
In this article, Fe3O4 magnetic particles were prepared via the coprecipitation method, and composite materials (PMCTS) were prepared via a crosslinking reaction of chitosan, polyvinyl alcohol and magnetic particles with glutaraldehydel. The composition, structure, morphology, and magnetic properties of the composite materials were characterized. The effects of the materials input, initial concentration of Pb(II), adsorption time, and temperature on the adsorption performance of PMCTS were further investigated, and the recovery rate of the materials was analyzed. The experiment shows that when the Pb(II) content in water is 30 mg/L, 0.5 g PMCTS are added to the adsorption system, the reaction time is 70 min at 45 °C, and pH = 7, the Pb(II) removal rate can reach 98.9%, and the recovery rate can reach 91.6%. Therefore, PMCTS are fast and effective in adsorbing Pb(II) in water.
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Lin et al. (2026) studied this question.
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