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Green synthesis of magnetite (Fe3O4) nanoparticles using seaweed (Kappaphycus alvarezii) extract

Yew, Y. P. and Shameli, K. and Miyake, M. and Kuwano, N. and Bt Ahmad Khairudin, N. B. and Bt Mohamad, S. E. and Lee, K. X. (2016) Green synthesis of magnetite (Fe3O4) nanoparticles using seaweed (Kappaphycus alvarezii) extract. Nanoscale Research Letters, 11 (1). ISSN 1931-7573

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Abstract

In this study, a simple, rapid, and eco-friendly green method was introduced to synthesize magnetite nanoparticles (Fe3O4-NPs) successfully. Seaweed Kappaphycus alvarezii (K. alvarezii) was employed as a green reducing and stabilizing agents. The synthesized Fe3O4-NPs were characterized with X-ray diffraction (XRD), ultraviolet-visible spectroscopy (UV-Vis), Fourier transform infrared (FT-IR), and transmission electron microscopy (TEM) techniques. The X-ray diffraction planes at (220), (311), (400), (422), (511), (440), and (533) were corresponding to the standard Fe3O4 patterns, which showed the high purity and crystallinity of Fe3O4-NPs had been synthesized. Based on FT-IR analysis, two characteristic absorption peaks were observed at 556 and 423 cm−1, which proved the existence of Fe3O4 in the prepared nanoparticles. TEM image displayed the synthesized Fe3O4-NPs were mostly in spherical shape with an average size of 14.7 nm.

Item Type:Article
Uncontrolled Keywords:Electron microscopy, High resolution transmission electron microscopy, Magnetite, Magnetite nanoparticles, Nanoparticles, Seaweed, Transmission electron microscopy, Ultraviolet visible spectroscopy, X ray diffraction, Characteristic absorption, Crystallinities, Fourier transform infrared, FTIR analysis, Green synthesis, Kappaphycus alvarezii, Spherical shape, Stabilizing agents, Synthesis (chemical)
Subjects:Q Science > QH Natural history
Divisions:Malaysia-Japan International Institute of Technology
ID Code:71538
Deposited By: Widya Wahid
Deposited On:15 Nov 2017 11:34
Last Modified:15 Nov 2017 11:34

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