We investigated the adsorption of heavy metal ions on a nanostructured coating of zinc-aluminum layered double hydroxides (Zn-Al LDHs) grown on aluminum foam by one-step hydrothermal process. This approach aimed to increase the interactive surface and provide a more practical medium for removal of toxic heavy metals from aqueous media. The foam coated with LDH was characterized by using scanning electron microscopy and X-ray diffraction. After immersion in a copper-rich water solution, X-ray photoelectron spectroscopy demonstrated the occurrence of adsorbed copper on the LDH-coated foam with two oxidation states: particles of metallic copper Cu0 with oxidized surface Cu+1. X-ray diffraction showed the presence of Cu+2 in the LDH structure.

Kaciulis, S., Bolli, E., Varone, A., Richetta, M., Narducci, R., Di Vona, M.L., et al. (2020). Adsorption of heavy metals by layered double hydroxides grown in situ on Al foam. In Special Issue:ECASIA '19 (pp.996-999). 111 RIVER ST, HOBOKEN 07030-5774, NJ USA : Wiley [10.1002/sia.6856].

Adsorption of heavy metals by layered double hydroxides grown in situ on Al foam

Varone A.
Investigation
;
Richetta M.
Conceptualization
;
Narducci R.
Methodology
;
Di Vona M. L.
Conceptualization
;
Pizzoferrato R.
Supervision
2020

Abstract

We investigated the adsorption of heavy metal ions on a nanostructured coating of zinc-aluminum layered double hydroxides (Zn-Al LDHs) grown on aluminum foam by one-step hydrothermal process. This approach aimed to increase the interactive surface and provide a more practical medium for removal of toxic heavy metals from aqueous media. The foam coated with LDH was characterized by using scanning electron microscopy and X-ray diffraction. After immersion in a copper-rich water solution, X-ray photoelectron spectroscopy demonstrated the occurrence of adsorbed copper on the LDH-coated foam with two oxidation states: particles of metallic copper Cu0 with oxidized surface Cu+1. X-ray diffraction showed the presence of Cu+2 in the LDH structure.
Nanoinnovation 2019
Rilevanza internazionale
contributo
Settore FIS/01
Settore FIS/03
Settore FIS/07
English
copper ions; LDH; LDH; metal adsorption; SEM; XPS; XRD
Intervento a convegno
Kaciulis, S., Bolli, E., Varone, A., Richetta, M., Narducci, R., Di Vona, M.L., et al. (2020). Adsorption of heavy metals by layered double hydroxides grown in situ on Al foam. In Special Issue:ECASIA '19 (pp.996-999). 111 RIVER ST, HOBOKEN 07030-5774, NJ USA : Wiley [10.1002/sia.6856].
Kaciulis, S; Bolli, E; Varone, A; Richetta, M; Narducci, R; Di Vona, Ml; Ciotta, E; Pizzoferrato, R
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/279342
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