4.6 Article

Heterogeneous Production of Cl-2 from Particulate Chloride: Effects of Composition and Relative Humidity

期刊

AICHE JOURNAL
卷 64, 期 8, 页码 3151-3158

出版社

WILEY
DOI: 10.1002/aic.16204

关键词

environmental chamber experiments; particulate chloride; reactive chlorine; photochemistry; heterogeneous chemistry

资金

  1. State of Texas via the Texas Air Research Center [312UTA0133A, 413UTA0147A]

向作者/读者索取更多资源

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 NH4Cl and NaCl particles exposed to O-3 and hydroxyl radicals (center dot OH). Observations are inconsistent with models of Cl-2 production resulting solely from surface-mediated reactions of center dot 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 (NOx). Heterogeneous reactive uptake coefficients for the production of Cl-2 from O-3 on pure NH 4Cl (gamma(O3)) averaged 1.4 +/- 1.0 X 10(-3). Cl-2 production was six times more efficient on NH4Cl 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%. (C) 2018 American Institute of Chemical Engineers

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据