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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.
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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.

Synthesis and characterization of magnetic oxide nanoparticles and corresponding thin films for wastewaters treatment

Laboratory of Chemical Nanotechnologies-LNC-CNMF

Multifunctional Materials and Structures Laboratory

”Dunărea de Jos” University of Galati

Department of Physical-Chemistry and Environment

“Dunărea de Jos” University of Galati

Ovidius University Annals of Chemistry

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Industrial wastewater can be properly treated using nanotechnologies and nanomaterials. This paper presents the synthesis and characterization of three series...

Synthesis and characterization of magnetic oxide nanoparticles and corresponding thin films for wastewaters treatment

Published Online: Nov 06, 2020

Page range: 122 - 131

Received: Sep 09, 2020

Accepted: Oct 10, 2020

DOI: https://doi.org/10.2478/auoc-2020-0021

Keywords
co-precipitation, magnetic nanoparticles, magnetic thin films, organic contaminants, wastewater

© 2020 Lenuța Crintea Căpăţână et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Synthesis and characterization of magnetic oxide nanoparticles and corresponding thin films for wastewaters treatment

Published Online: Nov 06, 2020

Page range: 122 - 131

Received: Sep 09, 2020

Accepted: Oct 10, 2020

DOI: https://doi.org/10.2478/auoc-2020-0021

Keywordsco-precipitation, magnetic nanoparticles, magnetic thin films, organic contaminants, wastewater

© 2020 Lenuța Crintea Căpăţână et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
co-precipitation, magnetic nanoparticles, magnetic thin films, organic contaminants, wastewater