Osama Saber, Nermen H. Mohamed and Abdullah Aljaafari Affiliation: BoxSaudi Arabia. Hematite nanosheets, magnetic materials, magnetic measurements, magnetite nanoparticles, oil spills removal Abstract:
Abstract Magnetite Fe3O4 nanoparticles, are promising inorganic nanomaterials for future biomedical applications due to their low toxicity and unique magnetic properties. However, the synthesis of these particles can often be expensive, energy intensive, and non-scalable, requiring the addition of surfactants to stabilize the material to control the particle size and avoid agglomeration.
We wish to report a simple, green, surfactant-free electrochemical synthesis of these materials using a closed aqueous system at ambient temperature.
Particle diameter, between 19 and 33 nm, was controlled by simply modifying the distance between the electrodes. These magnetite nanoparticles were then fully characterized using both spectroscopy and microscopy.
Vibrational magnetometry indicates that as the size of the particle decreases, the magnetic hysteretic gap decreases, although for samples below 25 nm no inter-sample difference was observed.
To support this experimental data, we carried out a Density Functional Theory DFT analysis of magnetite containing more than three iron atoms in the cluster, an essential proposition as magnetite contains three distinct iron species.
These calculations were used to support the experimental observations, and closely reproduced both the experimental IR spectrum, and the XRD pattern. This work represents the first DFT based simulation of this detailed magnetite cluster, and demonstrates that this sustainable synthetic method is capable of producing nanomaterials with a physical and biological profile that might make them suitable for biomedical applications.The synthesis of these magnetic particles is encoded by at least 28 different genes,  and translating this natural synthesis approach to the bench with high .
Synthesis of Nanoparticulate Magnetic Materials. Prof. Sergey P. Gubin; Vladimir L. Kolesnichenko; Published Online: 16 SEP Synthesis of Magnetic Metal Nanoparticles.
Synthesis of Magnetic Metal Oxide Nanoparticles. Technology of the Preparation of Magnetic Nanoparticles. Synthesis and magnetic properties of polymer nanocomposites Jessica L. Wilson Chapter 2 − Synthesis of Magnetic Nanoparticles 14 Introduction 14 Synthesis of Iron Nanopowders by Microwave Plasma Method 15 Synthesis and Magnetic Properties of Polymer Nanocomposites.
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An environmentally compatible and size-controlled method has been employed for synthesis of superparamagnetic magnetite nanoparticles with prehydrolysate from corn stover.
micellesystemhasbeenusedwidely.Forthesynthesis of nanoparticles of iron oxides such as maghemite (γ-Fe 2O 3) and magnetite (Fe 3O 4), which represent magnetic oxide materials, the precipitation technique consisting of.