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Fe 3 O 4 /SiO 2 /APTMS Nanoparticles with Core-Shell Structure as Potential Materials for Cooper Removal
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ficai, Denisa Ficai, Anton Alexie, Mihaela Maganu, Maria Guran, Cornelia Andronescu, Ecaterina Nenitzescu, Costin D. |
| Copyright Year | 2011 |
| Abstract | In this paper the preparation and characterization of 3-aminotrimethoxysilane functionalized silica-coated magnetite nanoparticles with core-shell structure (Fe3O4/SiO2-APTMS) are presented as well as the ability of these nanoparticles to remove Cu2+ ions from aqueous solutions. Magnetite nanoparticles (Fe3O4) were synthesized by the co-precipitation of FeCl2 and FeCl3 (1:2 molar ratio) with sodium hydroxide. To improve the chemical stability of Fe3O4 nanoparticles, a silica layer was coated onto the surface of magnetic nanoparticles. The SiO2 network was obtained by the hydrolysis of a mixture of tetraethoxysilane (TEOS) and 3-aminopropyltrimethoxysilane (APTMS) at room temperature and pH = 7. The resulting nanoparticles with core-shell structure were characterized by infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), X-ray diffraction (XRD) while the ability to remove the Cu(II) ions from aqueous solution was proved by UV-Vis spectroscopy. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.revistadechimie.ro/pdf/FICAI%20D.pdf%206%2011.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
