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- W4200163399 abstract "Magnetic iron nanoparticle sprinkled graphene oxide-chitosan (Fe3O4-GO/Ch) beads are successfully fabricated through a facile chemical route for the effective adsorption of Lead (Pb(II)) ions from an aqueous medium. Graphene oxide (GO) and Fe3O4 nanoparticles (NPs) were prepared by Hummer’s method and hydrothermal method respectively where, ferric chloride is used as an iron precursor. Fe3O4-GO was added to the chitosan solution at the incipience of polymerization and glutaraldehyde (crosslinking agent) was added to synthesize Fe3O4-GO/Ch beads. The composition, morphology and other physicochemical properties of the Fe3O4-GO/Ch beads were examined using energy dispersive X-ray spectroscopy, scanning electron microscopy, high resolution transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction spectroscopy and X-ray photoelectron spectroscopy. The adsorption capacity of Fe3O4-GO/Ch beads toward Pb(II) was 187 mg/g and the experimental data was fitted in Langmuir isotherm model. The plausible mechanism of Pb(II) adsorption on Fe3O4-GO/Ch beads was also discussed at pH 6.0. Insignificant effect of the commonly present interfering metal ions was observed on Pb(II) adsorption. The Fe3O4-GO/Ch beads were easily re-used after acid treatment and were employed in four adsorption–desorption cycles. Hence prepared Fe3O4-GO/Ch beads may be utilized as an efficient adsorbent for removing Pb(II) ions in aqueous samples." @default.
- W4200163399 created "2021-12-31" @default.
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- W4200163399 date "2022-05-01" @default.
- W4200163399 modified "2023-10-17" @default.
- W4200163399 title "Adsorptive removal of Pb(II) via green route using magnetic iron nanoparticle sprinkled graphene oxide-chitosan beads in aqueous medium" @default.
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- W4200163399 doi "https://doi.org/10.1016/j.enmm.2021.100632" @default.
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