A study on growth formation of nano-sized magnetite Fe3O4 via co-precipitation method. (8th December 2014)

• Record Type: Journal Article
• Authors: Lim, Y. S.; Lai, C. W.; Hamid, S. B. A.; Julkapli, N. Muhd; Yehya, W. A.; Karim, M. Z.; Tai, M. F.; Lau, K. S.
• Is Part Of: Materials research innovations. Volume 18:Number 6(2014)
• Page Start: S6-457
• Page End: S6-461
• Publication Date: 2014-12-08
• Subjects: Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1432891714Z.0000000001028
• Languages: English
• ISSNs: 1432-8917

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>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°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.</p> </abstract>