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Istituto di ricerche sulla combustione
Soppresso il 01/10/2020

Torna all'elenco Contributi in rivista anno 2020

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Tipo: Articolo in rivista

Titolo: Synthesis of carbon dots (CDs) through the fluidized bed thermal treatment of residual biomass assisted by ?-alumina

Anno di pubblicazione: 2020

Formato: Cartaceo

Autori: Paola Brachi

Affiliazioni autori: Istituto di Ricerche sulla Combustione (IRC-CNR)

Autori CNR:


Lingua: inglese

Abstract: An innovative route for the synthesis of carbon quantum dots (CQDs) is presented herein, which relies on the use of the fluidized bed technology and commercial ?-alumina as a catalyst, for the first time. Specifically, sugar beet pulp, which is the solid by-product of sugar beet industry, has been successfully tested for the synthesis of self-functionalized carbon nanoparticles under mild conditions of temperature (300 C) and time (30 min). Different techniques including TEM, UV-vis, fluorescence, Raman and XPS spectroscopy have been applied to characterize the as-prepared CQDs. The formation of CQDs on ?-alumina is discussed and a possible mechanism is proposed. A solid biofuel is also obtained as a co-product of the process. The innovative finding that a catalyst can be used to produce CQDs from the volatiles driven off the biomass by heating opens up new possibilities of valorisation for the off-gas substream coming from other biomass conversion processes (e.g., torrefaction).

Lingua abstract: inglese

Pagine da: 1

Pagine a: 13

Pagine totali: 13


Applied catalysis. B, Environmental Elsevier
Paese di pubblicazione: Paesi Bassi
Lingua: inglese
ISSN: 0926-3373

Numero volume: 263

DOI: 10.1016/j.apcatb.2019.118361

Referee: S: Internazionale

Stato della pubblicazione: Published version

Parole chiave:

  • Biomass-based carbon dots (CQDs)
  • ?-alumina catalyst
  • agro-industrial residues
  • dry thermal synthesis
  • fluidized bed technology

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