Heterogeneous production of Cl 2 from particulate chloride: Effects of composition and relative humidity
Reactions initiated by chlorine atoms can enhance the formation of ozone (O 3 ) and secondary organic aerosol (SOA) in the troposphere. Environmental chamber experiments were conducted to quantify heterogeneous Cl 2 production from NH 4 Cl and NaCl particles exposed to O 3 and hydroxyl radicals (•OH...
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| Veröffentlicht in: | AIChE journal 2018-08, Vol.64 (8), p.3151-3158 |
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| creator | Faxon, Cameron B. Dhulipala, Surya Venkatesh Allen, David T. Hildebrandt Ruiz, Lea |
| description | Reactions initiated by chlorine atoms can enhance the formation of ozone (O
3
) and secondary organic aerosol (SOA) in the troposphere. Environmental chamber experiments were conducted to quantify heterogeneous Cl
2
production from NH
4
Cl and NaCl particles exposed to O
3
and hydroxyl radicals (•OH). Observations are inconsistent with models of Cl
2
production resulting solely from surface‐mediated reactions of •OH and suggest that O
3
plays a significant role. The production of Cl
2
increased with relative humidity and decreased in the presence of SOA or nitric oxides (NO
x
). Heterogeneous reactive uptake coefficients for the production of Cl
2
from O
3
on pure NH
4
Cl (
) averaged 1.4 ± 1.0 × 10
−3
. Cl
2
production was six times more efficient on NH
4
Cl aerosol than on NaCl aerosol. Model calculations under atmospheric conditions suggest this heterogeneous Cl
2
production could increase peak daily O
3
concentrations by over 10%. © 2018 American Institute of Chemical Engineers
AIChE J
, 64: 3151–3158, 2018 |
| doi_str_mv | 10.1002/aic.16204 |
| format | Article |
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3
) and secondary organic aerosol (SOA) in the troposphere. Environmental chamber experiments were conducted to quantify heterogeneous Cl
2
production from NH
4
Cl and NaCl particles exposed to O
3
and hydroxyl radicals (•OH). Observations are inconsistent with models of Cl
2
production resulting solely from surface‐mediated reactions of •OH and suggest that O
3
plays a significant role. The production of Cl
2
increased with relative humidity and decreased in the presence of SOA or nitric oxides (NO
x
). Heterogeneous reactive uptake coefficients for the production of Cl
2
from O
3
on pure NH
4
Cl (
) averaged 1.4 ± 1.0 × 10
−3
. Cl
2
production was six times more efficient on NH
4
Cl aerosol than on NaCl aerosol. Model calculations under atmospheric conditions suggest this heterogeneous Cl
2
production could increase peak daily O
3
concentrations by over 10%. © 2018 American Institute of Chemical Engineers
AIChE J
, 64: 3151–3158, 2018</description><identifier>ISSN: 0001-1541</identifier><identifier>EISSN: 1547-5905</identifier><identifier>DOI: 10.1002/aic.16204</identifier><language>eng</language><ispartof>AIChE journal, 2018-08, Vol.64 (8), p.3151-3158</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c159t-626cf5046c243bb0ea8f4d83d96f032a6badab9f526e07229fc9da700c79c3433</citedby><cites>FETCH-LOGICAL-c159t-626cf5046c243bb0ea8f4d83d96f032a6badab9f526e07229fc9da700c79c3433</cites><orcidid>0000-0001-8378-1882</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Faxon, Cameron B.</creatorcontrib><creatorcontrib>Dhulipala, Surya Venkatesh</creatorcontrib><creatorcontrib>Allen, David T.</creatorcontrib><creatorcontrib>Hildebrandt Ruiz, Lea</creatorcontrib><title>Heterogeneous production of Cl 2 from particulate chloride: Effects of composition and relative humidity</title><title>AIChE journal</title><description>Reactions initiated by chlorine atoms can enhance the formation of ozone (O
3
) and secondary organic aerosol (SOA) in the troposphere. Environmental chamber experiments were conducted to quantify heterogeneous Cl
2
production from NH
4
Cl and NaCl particles exposed to O
3
and hydroxyl radicals (•OH). Observations are inconsistent with models of Cl
2
production resulting solely from surface‐mediated reactions of •OH and suggest that O
3
plays a significant role. The production of Cl
2
increased with relative humidity and decreased in the presence of SOA or nitric oxides (NO
x
). Heterogeneous reactive uptake coefficients for the production of Cl
2
from O
3
on pure NH
4
Cl (
) averaged 1.4 ± 1.0 × 10
−3
. Cl
2
production was six times more efficient on NH
4
Cl aerosol than on NaCl aerosol. Model calculations under atmospheric conditions suggest this heterogeneous Cl
2
production could increase peak daily O
3
concentrations by over 10%. © 2018 American Institute of Chemical Engineers
AIChE J
, 64: 3151–3158, 2018</description><issn>0001-1541</issn><issn>1547-5905</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNotkDFPwzAUhC0EEqUw8A-8MqQ824lTs6GqUKRKLDBHzrNNjJI6sh2k_nvSwnS6090NHyH3DFYMgD9qjysmOZQXZMGqsi4qBdUlWQAAK-aAXZOblL5nx-s1X5BuZ7ON4csebJgSHWMwE2YfDjQ4uukppy6GgY46Zo9Tr7Ol2PUhemOf6NY5izmdqhiGMSR_XuqDodHOXf9jaTcN3vh8vCVXTvfJ3v3rkny-bD82u2L__vq2ed4XyCqVC8klugpKibwUbQtWr11p1sIo6UBwLVttdKtcxaWFmnPlUBldA2CtUJRCLMnD3y_GkFK0rhmjH3Q8NgyaE6JmRtScEYlfA91bSA</recordid><startdate>201808</startdate><enddate>201808</enddate><creator>Faxon, Cameron B.</creator><creator>Dhulipala, Surya Venkatesh</creator><creator>Allen, David T.</creator><creator>Hildebrandt Ruiz, Lea</creator><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0001-8378-1882</orcidid></search><sort><creationdate>201808</creationdate><title>Heterogeneous production of Cl 2 from particulate chloride: Effects of composition and relative humidity</title><author>Faxon, Cameron B. ; Dhulipala, Surya Venkatesh ; Allen, David T. ; Hildebrandt Ruiz, Lea</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c159t-626cf5046c243bb0ea8f4d83d96f032a6badab9f526e07229fc9da700c79c3433</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Faxon, Cameron B.</creatorcontrib><creatorcontrib>Dhulipala, Surya Venkatesh</creatorcontrib><creatorcontrib>Allen, David T.</creatorcontrib><creatorcontrib>Hildebrandt Ruiz, Lea</creatorcontrib><collection>CrossRef</collection><jtitle>AIChE journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Faxon, Cameron B.</au><au>Dhulipala, Surya Venkatesh</au><au>Allen, David T.</au><au>Hildebrandt Ruiz, Lea</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Heterogeneous production of Cl 2 from particulate chloride: Effects of composition and relative humidity</atitle><jtitle>AIChE journal</jtitle><date>2018-08</date><risdate>2018</risdate><volume>64</volume><issue>8</issue><spage>3151</spage><epage>3158</epage><pages>3151-3158</pages><issn>0001-1541</issn><eissn>1547-5905</eissn><abstract>Reactions initiated by chlorine atoms can enhance the formation of ozone (O
3
) and secondary organic aerosol (SOA) in the troposphere. Environmental chamber experiments were conducted to quantify heterogeneous Cl
2
production from NH
4
Cl and NaCl particles exposed to O
3
and hydroxyl radicals (•OH). Observations are inconsistent with models of Cl
2
production resulting solely from surface‐mediated reactions of •OH and suggest that O
3
plays a significant role. The production of Cl
2
increased with relative humidity and decreased in the presence of SOA or nitric oxides (NO
x
). Heterogeneous reactive uptake coefficients for the production of Cl
2
from O
3
on pure NH
4
Cl (
) averaged 1.4 ± 1.0 × 10
−3
. Cl
2
production was six times more efficient on NH
4
Cl aerosol than on NaCl aerosol. Model calculations under atmospheric conditions suggest this heterogeneous Cl
2
production could increase peak daily O
3
concentrations by over 10%. © 2018 American Institute of Chemical Engineers
AIChE J
, 64: 3151–3158, 2018</abstract><doi>10.1002/aic.16204</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0001-8378-1882</orcidid></addata></record> |
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| issn | 0001-1541 1547-5905 |
| language | eng |
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| source | Wiley Journals |
| title | Heterogeneous production of Cl 2 from particulate chloride: Effects of composition and relative humidity |
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