Atmospheric Reactivity of Fullerene (C 60 ) Aerosols

Dhruv Mitroo, Jiewei Wu, Peter F. Colletti, Seung Soo Lee, Michael J. Walker, William Henry Brune, Brent J. Williams, John D. Fortner

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Rapid growth and adoption of nanomaterial-based technologies underpin a risk for unaccounted material release to the environment. Carbon-based materials, in particular fullerenes, have been widely proposed for a variety of applications. A quantitative understanding of how they behave is critical for accurate environmental impact assessment. While their aqueous phase reactivity, fate, and transport have been studied for over a decade, aerosol phase reactivity remains unexplored. Here, the transformation of C 60 , as nanocrystal (nC 60 ) aerosols, is evaluated over a range of simulated atmospheric conditions. Upon exposure to UV light, gas-phase O 3 , and OH, nC 60 is readily oxidized. This reaction pathway is likely limited by diffusion of oxidants within/through the nC 60 aerosol. Further, gas-phase oxidation induces disorder in the crystal structure without affecting aerosol (aggregate) size. Loss of crystallinity suggests aged nC 60 aerosols will be less effective ice nuclei, but an increase in surface oxidation will improve their cloud condensation nuclei ability.

Original languageEnglish (US)
Pages (from-to)95-102
Number of pages8
JournalACS Earth and Space Chemistry
Volume2
Issue number2
DOIs
StatePublished - Feb 15 2018

Fingerprint

Fullerenes
fullerene
Aerosols
fullerenes
aerosols
reactivity
aerosol
Gases
ice nuclei
vapor phases
condensation nuclei
oxidation
Oxidation
aggregate size
cloud condensation nucleus
Environmental impact assessments
Ice
environmental impact assessment
meteorology
crystallinity

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Atmospheric Science
  • Space and Planetary Science

Cite this

Mitroo, D., Wu, J., Colletti, P. F., Lee, S. S., Walker, M. J., Brune, W. H., ... Fortner, J. D. (2018). Atmospheric Reactivity of Fullerene (C 60 ) Aerosols ACS Earth and Space Chemistry, 2(2), 95-102. https://doi.org/10.1021/acsearthspacechem.7b00116
Mitroo, Dhruv ; Wu, Jiewei ; Colletti, Peter F. ; Lee, Seung Soo ; Walker, Michael J. ; Brune, William Henry ; Williams, Brent J. ; Fortner, John D. / Atmospheric Reactivity of Fullerene (C 60 ) Aerosols In: ACS Earth and Space Chemistry. 2018 ; Vol. 2, No. 2. pp. 95-102.
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Mitroo, D, Wu, J, Colletti, PF, Lee, SS, Walker, MJ, Brune, WH, Williams, BJ & Fortner, JD 2018, ' Atmospheric Reactivity of Fullerene (C 60 ) Aerosols ', ACS Earth and Space Chemistry, vol. 2, no. 2, pp. 95-102. https://doi.org/10.1021/acsearthspacechem.7b00116

Atmospheric Reactivity of Fullerene (C 60 ) Aerosols . / Mitroo, Dhruv; Wu, Jiewei; Colletti, Peter F.; Lee, Seung Soo; Walker, Michael J.; Brune, William Henry; Williams, Brent J.; Fortner, John D.

In: ACS Earth and Space Chemistry, Vol. 2, No. 2, 15.02.2018, p. 95-102.

Research output: Contribution to journalArticle

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