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- W2912889160 abstract "Nanoparticles Fe/Fe oxide coated by chitosan hydrogel have been successfully synthesized through the diffusion process of Fe2+ ions into chitosan hydrogel followed by chemical reduction process using sodium borohydride (NaBH4) as a reducing agent. The ratio of Fe2+ ions to NaBH4 concentrations and chitosan hydrogel size were varied to obtain samples with a high value of magnetization. The phase formation of chitosan, Fe and Fe oxide nanoparticles were identified by X-Ray Diffraction (XRD). Distribution pattern and morphology as well as the concentration of nanoparticles formed within hydrogel were characterized by Scanning Electron Microscope-Energy Dispersive Spectroscopy (SEM-EDS). The total amount of diffused Fe2+ ions was also measured by atomic absorption spectrophotometer (AAS). Characterization by Vibrating Sample Magnetometer (VSM) indicates the formation of super paramagnetic samples with values of saturation magnetization (Ms) maximum of 23.6 emu/g obtained at Fe: NaBH4 concentrations ratio of 1:5 and 1 mm sized of chitosan hydrogel. This optimum condition is achieved with the total amount of diffused Fe2+ ions of 27.04% from its initial amount. The typical peak shift of the Schiff base observed in Fourier Transform Infrared (FT-IR) spectrophotometer from 1629 cm-1 became 1174 cm−1 (C-N vibration strain) and 1653 cm−1 (N-H secondary vibration) ensure the bond between nanoparticles Fe/Fe oxides with chitosan hydrogel." @default.
- W2912889160 created "2019-02-21" @default.
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- W2912889160 date "2021-01-01" @default.
- W2912889160 modified "2023-10-17" @default.
- W2912889160 title "Synthesis and characterization of magnetic nanoparticles Fe/Fe oxide of sodium borohydride reduction results within chitosan hydrogel" @default.
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- W2912889160 doi "https://doi.org/10.1063/5.0051848" @default.
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