Aqueous benzene-diols react with an organic triplet excited state and hydroxyl radical to form secondary organic aerosol

Physical Chemistry Chemical Physics : PCCP
Jeremy D SmithCort Anastasio

Abstract

Chemical processing in atmospheric aqueous phases, such as cloud and fog drops, can play a significant role in the production and evolution of secondary organic aerosol (SOA). In this work we examine aqueous SOA production via the oxidation of benzene-diols (dihydroxy-benzenes) by the triplet excited state of 3,4-dimethoxybenzaldehyde, (3)DMB*, and by hydroxyl radical, ˙OH. Reactions of the three benzene-diols (catechol (CAT), resorcinol (RES) and hydroquinone (HQ)) with (3)DMB* or ˙OH proceed rapidly, with rate constants near diffusion-controlled values. The two oxidants exhibit different behaviors with pH, with rate constants for (3)DMB* increasing as pH decreases from pH 5 to 2, while rate constants with ˙OH decrease in more acidic solutions. Mass yields of SOA were near 100% for all three benzene-diols with both oxidants. We also examined the reactivity of atmospherically relevant mixtures of phenols and benzene-diols in the presence of (3)DMB*. We find that the kinetics of phenol and benzene-diol loss, and the production of SOA mass, in mixtures are generally consistent with rate constants determined in experiments containing a single phenol or benzene-diol. Combining our aqueous kinetic and SOA mass yield data with previo...Continue Reading

References

Jun 8, 2001·Environmental Science & Technology·C G NolteB R Simoneit
Dec 11, 2003·Chemical Reviews·Hartmut Herrmann
Jul 29, 2005·Environmental Science & Technology·Ho-Jin LimBarbara J Turpin
Jul 13, 2006·The Journal of Physical Chemistry. a·Liang Chu, Cort Anastasio
Dec 2, 2010·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Hartmut HerrmannAndreas Tilgner
Jul 28, 2011·Environmental Science & Technology·D S KaulJ L Collett
Mar 8, 2012·Environmental Science & Technology·Kelli S GolanoskiNeil V Blough
Apr 21, 2012·Proceedings of the National Academy of Sciences of the United States of America·Maria Eugenia MongeBarbara D'Anna
May 22, 2013·Environmental Science & Technology·Nadine BorduasJennifer G Murphy
Jul 5, 2013·Environmental Science & Technology·Takemitsu ArakakiYouichi Miyagi
Feb 22, 2014·Environmental Science & Technology·Stéphanie RossignolChristian George

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Citations

Jan 7, 2017·Environmental Science. Processes & Impacts·Zeyuan Chen, Cort Anastasio
Jul 8, 2017·Faraday Discussions·Barbara J Finlayson-Pitts
Mar 6, 2018·Reports on Progress in Physics·F S GnesottoC P Broedersz
Apr 4, 2018·Environmental Science & Technology·Richie Kaur, Cort Anastasio
Aug 29, 2018·Environmental Science & Technology·Sophie TomazBarbara J Turpin
Mar 13, 2020·Environmental Science & Technology·Alexander S McFallCort Anastasio

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