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- W4294308081 abstract "In this study, Fe3O4 magnetic nanoparticles were synthesized using a co-precipitation method and thereby modified with 3-aminopropyltriethoxy-silane (APTES) as the amine precursor, and 4- bromobenzaldehyde (BA) and 2-Formyl-1H-pyrrole (FP) as aldehyde precursors, to create Schiff ligands on the surface. In addition, FT-IR, FE-SEM, TGA-DTG, TEM, and XRD analyses were employed to characterize the nanoparticles. The resultant modified nanoparticles (Fe3O4-BA and Fe3O4-FP) were then applied for Pb(II) removal from aqueous solutions. The kinetic behavior of Pb(II) removal was studied through pseudo-first-order and pseudo-second-order adsorption experiments, resulting in the rate constants. According to the findings, the metal adsorption process followed a pseudo-second-order kinetic reaction. Assessing the equilibrium behavior of the adsorption process through Langmuir and Freundlich models revealed that the adsorption equilibrium data for Pb(II) ions on Fe3O4-BA and Fe3O4-FP followed the Langmuir and Freundlich isotherm models, respectively. Moreover, the results showed that the adsorption process of metal ions by the Fe3O4-BA and Fe3O-FP nanoparticles was affected by operating parameters such as pH, temperature, metal ion concentration and mass of adsorbent." @default.
- W4294308081 created "2022-09-02" @default.
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- W4294308081 date "2023-01-01" @default.
- W4294308081 modified "2023-10-07" @default.
- W4294308081 title "Adsorption of Pb(II) ions from aqueous solutions by magnetite (Fe3O4) nanoparticles functionalized with two different Schiff base ligands" @default.
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- W4294308081 doi "https://doi.org/10.1016/j.molstruc.2022.134059" @default.
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