Synthesis of Magnetite Nanoparticles by Top-Down Approach from a High Purity OreReport as inadecuate




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Journal of Nanomaterials - Volume 2015 2015, Article ID 317312, 8 pages -

Research Article

Sri Lanka Institute of Nanotechnology SLINTEC, Nanotechnology and Science Park, Mahenawatta, Pitipana, 10200 Homagama, Sri Lanka

Department of Chemistry, University of Sri Jayewardenepura, 10250 Nugegoda, Sri Lanka

Department of Geology, University of Peradeniya, 20400 Peradeniya, Sri Lanka

Department of Chemical and Process Engineering, University of Moratuwa, 10400 Moratuwa, Sri Lanka

Department of Chemistry, University of Peradeniya, 20400 Peradeniya, Sri Lanka

Received 11 June 2015; Revised 26 August 2015; Accepted 9 September 2015

Academic Editor: Rajender S. Varma

Copyright © 2015 Gayan Priyadarshana et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study attempts to synthesize magnetite nanoparticles from a high purity natural iron oxide ore found in Panvila, Sri Lanka, following a novel top-down approach. Powder X-Ray diffraction, elemental analysis, and chemical analysis data confirmed the ore to be exclusively magnetite with Fe

 : Fe

ratio of 1 : 2. Surface modified magnetite nanoparticles were synthesized by destructuring of this ore using a top-down approach in the presence of oleic acid. These oleic acid coated nanoparticles were further dispersed in ethanol resulting in stable nanomagnetite dispersion. Interestingly, the nanoparticles demonstrated a spherical morphology with a particle size ranging from 20 to 50 nm. Magnetic force microscopic data was used to confirm the topography of the nanoparticles and to study the magnetic domain structure.





Author: Gayan Priyadarshana, Nilwala Kottegoda, Atula Senaratne, Ajith de Alwis, and Veranja Karunaratne

Source: https://www.hindawi.com/



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