A novel method for decontamination by nitroarenes was proposed: nitroarenes were converted into less toxic anilines using a new catalyst synthetized starting from waste steel slags (SS) coming from local steel factories. The new catalyst was synthetized by impregnating SS with iron(II) and iron(III) salts affording Fe-cat/SS, which was characterized by different analytical techniques, such as energy dispersive x-ray fluorescence (ED-XRF) spectroscopy, thermogravimetric analyses (TGA), Fourier-transform infrared spectroscopy (FT-IR). Fe-cat/SS resulted active and selective in the reduction of nitrobenzene to aniline by using hydrazine hydrate as the reductant. Recyclability studies demonstrated that Fe-cat/SS could be recycled at least for eight subsequent runs without loss of activity and selectivity. Thus, the proposed catalytic system is a virtuous example of conversion of waste into valuable materials, that can be used to prevent water contamination by nitroarenes.
Waste Based Solutions for Preventing Water Pollution by Nitroarenes / Leone, M. S.; Mastrorilli, P.; Mali, M.; Porfido, C.; Terzano, R.; Dell'Anna, M. M.. - ELETTRONICO. - (2023), pp. 474-477. (Intervento presentato al convegno 2023 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters, MetroSea 2023 tenutosi a mlt nel 2023) [10.1109/MetroSea58055.2023.10317299].
Waste Based Solutions for Preventing Water Pollution by Nitroarenes
Leone M. S.;Mastrorilli P.
;Mali M.;Dell'anna M. M.
2023-01-01
Abstract
A novel method for decontamination by nitroarenes was proposed: nitroarenes were converted into less toxic anilines using a new catalyst synthetized starting from waste steel slags (SS) coming from local steel factories. The new catalyst was synthetized by impregnating SS with iron(II) and iron(III) salts affording Fe-cat/SS, which was characterized by different analytical techniques, such as energy dispersive x-ray fluorescence (ED-XRF) spectroscopy, thermogravimetric analyses (TGA), Fourier-transform infrared spectroscopy (FT-IR). Fe-cat/SS resulted active and selective in the reduction of nitrobenzene to aniline by using hydrazine hydrate as the reductant. Recyclability studies demonstrated that Fe-cat/SS could be recycled at least for eight subsequent runs without loss of activity and selectivity. Thus, the proposed catalytic system is a virtuous example of conversion of waste into valuable materials, that can be used to prevent water contamination by nitroarenes.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
