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Synthesis and Characterization of Mesoporous Magnetite Based Nanoparticles

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Mesoporous, magnetite based nanoparticles (MNPs) were successfully synthesized by a modified precipitation method. For this purpose, the precursors' solution was sprayed into a sodium hydroxide or sodium hydroxide/citrate precipitation bath. In order to determinate the structure and morphology of the as-synthesized mesoporous MNPs the following methods were used: X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), infrared spectra (IR), high-resolution transmission electron microscopy (HRTEM) coupled with selected area electron diffraction (SAED) and energy dispersive spectrometry (EDS). The Brunauer–Emmett–Teller (BET) analysis revealed a mesoporous structure of the samples which has a specific surface area of about 160m2/g (unstabilized Fe3O4 nanoparticles) and 247 - 257 m2/g (for the stabilized Fe3O4 nanoparticles). The average pore size of the MNPs is 2 – 5nm which means that mesoporous materials were obtained.
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Keywords: Mesoporous magnetite based nanoparticles; citric acid; co-precipitation; specific surface area; spraying

Document Type: Research Article

Publication date: December 1, 2012

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  • Current Nanoscience publishes authoritative reviews and original research reports, written by experts in the field on all the most recent advances in nanoscience and nanotechnology. All aspects of the field are represented including nano- structures, synthesis, properties, assembly and devices. Applications of nanoscience in biotechnology, medicine, pharmaceuticals, physics, material science and electronics are also covered. The journal is essential to all involved in nanoscience and its applied areas.
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