Synthesis and characterization of magnetic oxide nanoparticles and corresponding thin films for wastewaters treatment
| Autor: | Vasile Basliu, Andreea Veronica Dediu Botezatu, Silviu Polosan, Alina Cantaragiu, Lenuța Crintea Căpăţână, Viorica Musat, Rodica Mihaela Dinica |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
magnetic nanoparticles
Materials science Nanoparticle 02 engineering and technology General Medicine 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences magnetic thin films 0104 chemical sciences Characterization (materials science) Chemistry Chemical engineering co-precipitation organic contaminants Thin film 0210 nano-technology Magnetic oxide wastewater QD1-999 |
| Zdroj: | Analele Universităţii "Ovidius" Constanţa: Seria Chimie, Vol 31, Iss 2, Pp 122-131 (2020) |
| Popis: | Industrial wastewater can be properly treated using nanotechnologies and nanomaterials. This paper presents the synthesis and characterization of three series of magnetic nanoparticles (MNPs) and corresponding thin films, used for the degradation of organic compounds and removal of heavy metals from industrial wastewater. The samples were obtained by co-precipitation from a ferric (Fe3+) and ferrous (Fe2+) ions solution in a molar ratio of 2:1, at temperatures between 80-95 °C. The characterization of the samples was performed by scanning electron microscopy (SEM), and X-ray diffraction (XRD) methods. The magnetic nanoparticles were deposited on glass substrates by the centrifugal coating technique and the optical and magneto-optical activity was investigated by UV-Vis spectroscopy and magnetic circular dichroism technique (MCD). The effect of the investigated samples on the decomposition under UV irradiation of organic dyes was monitored by UV-Vis spectroscopy. Our preliminary results have shown that the magnetite and maghemite MNPs can be effective in UV degradation of methylene blue (MB) dye. |
| Databáze: | OpenAIRE |
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