Facile one pot synthesis of highly stable L-ascorbic acid coated magnetite nanoparticles dispersion

Yau, X.H. and Yew, K.Y. and Khe, C.S. and Rajalingam, S. and Lai, C.W. and Liu, W.W. (2017) Facile one pot synthesis of highly stable L-ascorbic acid coated magnetite nanoparticles dispersion. Digest Journal of Nanomaterials and Biostructures, 12 (2). pp. 401-413. ISSN 1842-3582

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Official URL: http://www.chalcogen.ro/401_YauXH.pdf

Abstract

Magnetite nanoparticles had been synthesized through a simple one pot and ecofriendly method. Biocompatible and nontoxic L-ascorbic acid (LAA) was used as capping agent in the synthesis process to produce highly stable magnetite nanoparticle dispersion. The magnetite nanoparticles were characterized with various techniques. From X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDX) analysis, the results reveal that magnetite nanoparticles were synthesized without impurities. Spherical magnetite nanoparticles with average particle size of 11.1 nm coated with LAA was shown in both scanning electron microscope (SEM) and transmission electron microscope (TEM) images. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) confirmed the LAA capped on the surface of magnetite nanoparticles, whereas Zeta potential shows the LAA coated magnetite nanoparticles were exhibit high stability with good dispersion. From vibrating sample magnetometer (VSM), the superparamagnetism of magnetite nanoparticles was confirmed. Possible mechanism of LAA capped on magnetite nanoparticles was proposed eventually.

Item Type: Article
Uncontrolled Keywords: Capping mechanism; Characterization; Dispersion; L-ascorbic acid; Magnetite nanoparticles
Subjects: Q Science > Q Science (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Nanotechnology & Catalysis Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 31 Jul 2018 03:06
Last Modified: 31 Jul 2018 03:06
URI: http://eprints.um.edu.my/id/eprint/18949

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