Abstract
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.
Keywords: Mesoporous magnetite based nanoparticles, citric acid, co-precipitation, specific surface area, spraying
Current Nanoscience
Title:Synthesis and Characterization of Mesoporous Magnetite Based Nanoparticles
Volume: 8 Issue: 6
Author(s): Denisa Ficai, Ecaterina Andronescu, Anton Ficai, Georgeta Voicu, Bogdan Vasile, Valentin IONITA and Cornelia Guran
Affiliation:
Keywords: Mesoporous magnetite based nanoparticles, citric acid, co-precipitation, specific surface area, spraying
Abstract: 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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Cite this article as:
Ficai Denisa, Andronescu Ecaterina, Ficai Anton, Voicu Georgeta, Vasile Bogdan, IONITA Valentin and Guran Cornelia, Synthesis and Characterization of Mesoporous Magnetite Based Nanoparticles, Current Nanoscience 2012; 8 (6) . https://dx.doi.org/10.2174/157341312803989114
DOI https://dx.doi.org/10.2174/157341312803989114 |
Print ISSN 1573-4137 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6786 |
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