We have synthesized two-dimensional carbon nanoparticles by oxidative unfolding of C60 fullerene and demonstrated that the selective sensitivity of this material to the presence of Cu2+ and Pb2+, resulting in variations of the fluorescence intensity and optical absorbance, is related to nanoparticle aggregation processes. This mechanism occurs through coordination of the metal ions and, above a certain ion concentration, leads to precipitation of the carbon material that reduces the metal content in solution. The effect has been characterized by optical measurements while Atomic Absorption Spectroscopy have been carried out for a precise assessment of the real ion concentration in solution.

Ciotta, E., Prosposito, P., Moscone, D., Colozza, N., & Pizzoferrato, R. (2019). Detection and removal of heavy-metal ions in water by unfolded-fullerene nanoparticles. In NANOINNOVATION 2018 (pp.020008). AIP [10.1063/1.5123569].

Detection and removal of heavy-metal ions in water by unfolded-fullerene nanoparticles

Prosposito P.;Moscone D.;Colozza N.;Pizzoferrato R.
2019

Abstract

We have synthesized two-dimensional carbon nanoparticles by oxidative unfolding of C60 fullerene and demonstrated that the selective sensitivity of this material to the presence of Cu2+ and Pb2+, resulting in variations of the fluorescence intensity and optical absorbance, is related to nanoparticle aggregation processes. This mechanism occurs through coordination of the metal ions and, above a certain ion concentration, leads to precipitation of the carbon material that reduces the metal content in solution. The effect has been characterized by optical measurements while Atomic Absorption Spectroscopy have been carried out for a precise assessment of the real ion concentration in solution.
Nanoinnovation 2018
roma
2018
Rilevanza internazionale
contributo
Settore FIS/03
Settore ING-IND/23 - Chimica Fisica Applicata
Settore ING-IND/22
English
Intervento a convegno
Ciotta, E., Prosposito, P., Moscone, D., Colozza, N., & Pizzoferrato, R. (2019). Detection and removal of heavy-metal ions in water by unfolded-fullerene nanoparticles. In NANOINNOVATION 2018 (pp.020008). AIP [10.1063/1.5123569].
Ciotta, E; Prosposito, P; Moscone, D; Colozza, N; Pizzoferrato, R
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/233752
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