Journal
ATMOSPHERIC ENVIRONMENT
Volume 42, Issue 35, Pages 8309-8314Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.atmosenv.2008.07.037
Keywords
Heterogeneous chemistry; Polycyclic aromatic hydrocarbons; Nitration; Oxidation
Funding
- Canadian Foundation for Climate and Atmospheric Science (CFCAS)
- Natural Sciences and Engineering Research Council (NSERC)
- PGS D Scholarship
Ask authors/readers for more resources
Although heterogeneous reactions of polycyclic aromatic hydrocarbons (PAHs) with atmospheric oxidants may be important loss processes for PAHs, our understanding of their kinetics and products is incomplete. A product study of the reaction of two PAHs (i.e., anthracene and pyrene) and n-hexane soot with NO3 and N2O5 using a variety of analytical techniques (XPS, DRIFFS, GC-MS, optical absorption) was undertaken. The goal was to characterize the products of these heterogeneous nitration reactions to aid in reaction mechanism development. NitroPAHs were found to be the products of the nitration of anthracene and pyrene whereas evidence of both nitro and carbonyl functional groups were observed on the surface of n-hexane soot samples following exposure to a mixed flow of NO3 and N2O5. Absorption experiments indicate that the nitration of PAHs alter the optical properties of the particles to which they are adsorbed, giving rise to absorption intensity in the near UV and visible portions of the spectrum. (C) 2008 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available