Effect of Reaction pH on Characterization of Co-precipitated Cobalt ferrite Nanoparticles

Authors(3) :-Duong Hong Quyen, Dam Ngoc Anh, Hoang Thi Kieu Nguyen

Cobalt ferrite (CoFe2O4) nanoparticles were prepared by a chemical coprecipitation method at different pH conditions from 10.1 to 13.5. The XRD results reveal that pure cobalt ferrite particles with the inverse spinel structure are only formed at pH values higher than 11. The average particle diameter increases from 11.9 to 15.8 nm as the pH of reaction is increased from 11.1 to 13.5. The obtained results indicate that the ferrite precipitation process proceeds via the formation of cobalt hydroxide and the particle size distribution of this precursor determines the final particle size.  It is found that with increasing the pH of reaction, the magnetization increases meanwile the coercive field decreases. All the samples synthesized at investigated pH values show ferrimagnetic behavior and highest magnetization up to 60 Oe at the highest pH.

Authors and Affiliations

Duong Hong Quyen
School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
Dam Ngoc Anh
School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
Hoang Thi Kieu Nguyen
School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam

Cobalt ferrite, nanoparticles, magnetic preparation

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Publication Details

Published in : Volume 4 | Issue 8 | May-June 2018
Date of Publication : 2018-06-30
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 635-639
Manuscript Number : IJSRSET1848170
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

Duong Hong Quyen, Dam Ngoc Anh, Hoang Thi Kieu Nguyen, " Effect of Reaction pH on Characterization of Co-precipitated Cobalt ferrite Nanoparticles , International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 4, Issue 8, pp.635-639, May-June-2018.
Journal URL : http://ijsrset.com/IJSRSET1848170

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