Green synthesis of soya bean sprouts-mediated superparamagnetic Fe3O4 nanoparticles |
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Authors: | Yan Cai Anjian Xie Shikuo Li |
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Institution: | a School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, PR China b State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, PR China |
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Abstract: | Superparamagnetic Fe3O4 nanoparticles were first synthesized via soya bean sprouts (SBS) templates under ambient temperature and normal atmosphere. The reaction process was simple, eco-friendly, and convenient to handle. The morphology and crystalline phase of the nanoparticles were determined from scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and X-ray diffraction (XRD) spectra. The effect of SBS template on the formation of Fe3O4 nanoparticles was investigated using X-ray photoemission spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FT-IR). The results indicate that spherical Fe3O4 nanoparticles with an average diameter of 8 nm simultaneously formed on the epidermal surface and the interior stem wall of SBS. The SBS are responsible for size and morphology control during the whole formation of Fe3O4 nanoparticles. In addition, the superconducting quantum interference device (SQUID) results indicate the products are superparamagnetic at room temperature, with blocking temperature (TB) of 150 K and saturation magnetization of 37.1 emu/g. |
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Keywords: | Fe3O4 Magnetic nanoparticle Green synthesis |
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