Lim, Y.S. and Lai, C.W. and Hamid, Sharifah Bee Abd and Julkapli, N.M. and Yehya, W.A. and Karim, M.Z. and Tai, M.F. and Lau, K.S. (2014) A study on growth formation of nano-sized magnetite Fe3O4 via co-precipitation method. Materials Research Innovations, 18 (S6). pp. 457-461. ISSN 1432-8917, DOI https://doi.org/10.1179/1432891714Z.0000000001028.
Full text not available from this repository.Abstract
A simple and cost-effective chemical co-precipitation of aqueous ferrous and ferric salts was used to synthesis controlled size of magnetite iron oxide nanoparticles. The titration reactions between the aqueous Fe2+/Fe3+ salt solutions were controlled by an autotitrator unit with continuous addition of 1 M sodium hydroxide under different heating temperatures from 30 up to 80 degrees C in oxidising atmosphere. Then, further investigation on the degree of crystallinity of magnetite iron oxide nanoparticles was conducted by altering the concentration of Fe2+/Fe3+ ions in the ratio of 1:1, 1:1.25, 1:1.5 and 1:2. The resultant magnetite iron oxide nanoparticles were characterised by using X-ray diffraction, field emission scanning electron microscopy and Fourier transform infrared spectroscopy. The ratio of Fe2+/Fe3+ salt solutions and heating temperatures played a crucial role in controlling the morphology, crystallinity and particle sizes of magnetite magnetite iron oxide.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Co-precipitation; Magnetite; Iron oxide; Titration; Crystallinity |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Chemistry Nanotechnology & Catalysis Research Centre |
| Depositing User: | Dr Mohd Faizal Hamzah |
| Date Deposited: | 31 Dec 2015 00:56 |
| Last Modified: | 19 Oct 2018 03:19 |
| URI: | http://eprints.um.edu.my/id/eprint/15489 |
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