One-pot synthesis of iron oxide nanoparticles: Effect of stirring rate and reaction time on its physical characteristics

Auni Hamimi, Idris and Che Azurahanim, Che Abdullah and Nor Azah, Yusof and Mohd Basyaruddin, Abdul Rahman (2022) One-pot synthesis of iron oxide nanoparticles: Effect of stirring rate and reaction time on its physical characteristics. Inorganic and Nano-Metal Chemistry. pp. 1-7. ISSN 2470-1556. (In Press / Online First) (In Press / Online First)

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DOI/Official URL: https://doi.org/10.1080/24701556.2022.2072339

Abstract

Iron oxide nanoparticles (IONP) have tremendous potential in various applications due to their unique physical and magnetic properties. Controlling synthesis parameters is essential to obtain IONP with desired properties. The influence of stirring rate and reaction time during synthesis of IONP from thermal decomposition of FeOOH on the particle size, crystallinity, and magnetic properties of the IONP were investigated. IONP produced at different reaction times and stirring rates had similar spherical shapes with low polydispersity. Particle size was found to increase from 4.9nm to 8.6nm when reaction time increased from 15 to 60 min, with the highest saturation magnetization of 34.3 Am2/kg obtained at 60 min. Stirring rates of 400 and 500 rpm produced IONP with better crystallinity and saturation magnetization than 300 and 600 rpm. The properties of IONP can be tuned by selecting appropriate stirring rates and reaction times during synthesis to suit the intended applications.

Item Type:	Article
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	superparamagnetic iron; oxide nanoparticles; thermal; decomposition; magnetic; nanoparticles; stirring rate; one-pot
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Faculty/Division:	Faculty of Chemical and Process Engineering Technology
Depositing User:	Dr. Auni Hamimi Idris
Date Deposited:	06 Mar 2024 06:00
Last Modified:	06 Mar 2024 06:00
URI:	http://umpir.ump.edu.my/id/eprint/38051
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