Heterogeneous ozonation of polycyclic aromatic hydrocarbons on organic films

Tara F. Kahan, N. O.A. Kwamena, D. James Donaldson

Research output: Contribution to journalConference article

Abstract

The heterogeneous reaction rates of gas-phase ozone with naphthalene, anthracene, fluoranthene, phenanthrene, pyrene, and BaP were measured over a range of ozone concentrations from 3.5 × 1014 to 2.3 × 1016 molecule/cc. The PAH were dissolved in organic mixtures of octanol or decanol along with with compounds known to be present in urban grime films. The presence of most additional organic compounds did not affect the reaction rates; however, unsaturated species, e.g., oleic acid and squalene, reduced the observed rates significantly. In all cases, the reaction kinetics were well-described by the Langmuir-Hinshelwood mechanism, which suggested a surface reaction. The presence of PAH at the air-organic interface was confirmed by an adsorption isotherm of anthracene. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006). This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).

Original languageEnglish (US)
JournalACS National Meeting Book of Abstracts
Volume231
StatePublished - Jun 28 2006
Event231th ACS National Meeting - Atlanta, GA, United States
Duration: Mar 26 2006Mar 30 2006

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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