Temperature effects on optical properties and chemical composition of secondary organic aerosol derived from n-dodecane
Temperature effects on optical properties and chemical composition of secondary organic aerosol derived from n-dodecane
复制标题
温度对正十二烷二次有机气溶胶光学性质和化学成分的影响
DOI:
10.5194/acp-2019-1218-supplement
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发表时间:
2020-02
影响因子:
6.3
通讯作者:
Ge Maofa
中科院分区:
文献类型:
--
作者:
Li Junling;Wang Weigang;Li Kun;Zhang Wenyu;Peng Chao;Zhou Li;Shi Bo;Chen Yan;Liu Mingyuan;Li Hong;Ge Maofa
Abstract. Environmental temperature plays a vital role in controlling chemical transformations that lead to
the formation of secondary organic aerosol (SOA) and ultimately impact the composition and optical
properties of the aerosol particles. In this study, we investigated optical properties of
n-dodecane SOA under two temperature conditions: 5 and
25 ∘C. It was shown that low-temperature conditions could enhance the real part of the refractive
index (RI) of the SOA at wavelengths of 532 and 375 nm. Mass spectrometry analysis
revealed that the molecular composition of n-dodecane SOA was significantly modified by temperature:
a large amount of oligomers were formed under low-temperature conditions, which led to higher RI
values. These findings will help improve our understanding of the chemical composition and optical
properties of SOA under different temperature conditions and will provide one possible explanation for
the low visibility in suburban areas during winter.
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影响因子:
3.4
作者:
Zixu Zhao;Chen Le;Q. Xu;Weihan Peng;Huanhuan Jiang;Ying-Hsuan Lin;D. Cocker;Haofei Zhang
通讯作者:
Zixu Zhao;Chen Le;Q. Xu;Weihan Peng;Huanhuan Jiang;Ying-Hsuan Lin;D. Cocker;Haofei Zhang
影响因子:
5
作者:
Bo Shi;Weigang Wang;Li Zhou;Zheng Sun;Cici Fan;Yan Chen;Wenyu Zhang;Yanyang Qiao;Yanliu Qiao;Maofa Ge
通讯作者:
Maofa Ge
影响因子:
4.4
作者:
Peng Chao;Wang Weigang;Li Kun;Li Junling;Zhou Li;Wang Lingshu;Ge Maofa
通讯作者:
Ge Maofa
影响因子:
20.6
作者:
Lu K;Guo S;Tan Z;Wang H;Shang D;Liu Y;Li X;Wu Z;Hu M;Zhang Y
通讯作者:
Zhang Y
影响因子:
5
作者:
B. Warren;Rebecca L. Austin;D. Cocker
通讯作者:
B. Warren;Rebecca L. Austin;D. Cocker