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DOI | 10.1038/s41467-019-09468-4 |
Resolving the mechanisms of hygroscopic growth and cloud condensation nuclei activity for organic particulate matter | |
Liu, Pengfei1; Song, Mijung2,3; Zhao, Tianning1; Gunthe, Sachin S.1,4; Ham, Suhan3; He, Yipeng1,5; Qin, Yi Ming1; Gong, Zhaoheng1; Amorim, Juliana C.1; Bertram, Allan K.2; Martin, Scot T.1,6 | |
2019-03-29 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2018 |
卷号 | 9 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada; South Korea; India; Peoples R China |
英文摘要 | Hygroscopic growth and cloud condensation nuclei activation are key processes for accurately modeling the climate impacts of organic particulate matter. Nevertheless, the microphysical mechanisms of these processes remain unresolved. Here we report complex thermodynamic behaviors, including humidity-dependent hygroscopicity, diameter-dependent cloud condensation nuclei activity, and liquid-liquid phase separation in the laboratory for biogenically derived secondary organic material representative of similar atmospheric organic particulate matter. These behaviors can be explained by the non-ideal mixing of water with hydrophobic and hydrophilic organic components. The non-ideality-driven liquid-liquid phase separation further enhances water uptake and induces lowered surface tension at high relative humidity, which result in a lower barrier to cloud condensation nuclei activation. By comparison, secondary organic material representing anthropogenic sources does not exhibit complex thermodynamic behavior. The combined results highlight the importance of detailed thermodynamic representations of the hygroscopicity and cloud condensation nuclei activity in models of the Earth's climate system. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000446313800011 |
WOS关键词 | LIQUID PHASE-SEPARATION ; SINGLE-PARAMETER REPRESENTATION ; CARBON ELEMENTAL RATIO ; DROPLET ACTIVATION ; AEROSOL-PARTICLES ; ALPHA-PINENE ; INORGANIC SALTS ; RELATIVE HUMIDITIES ; AMMONIUM-SULFATE ; CCN ACTIVATION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204294 |
专题 | 资源环境科学 |
作者单位 | 1.Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA; 2.Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada; 3.Chonbuk Natl Univ, Dept Earth & Environm Sci, Jeollabuk Do 54896, South Korea; 4.Indian Inst Technol Madras, Dept Civil Engn, EWRE Div, Madras 600036, Tamil Nadu, India; 5.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China; 6.Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA |
推荐引用方式 GB/T 7714 | Liu, Pengfei,Song, Mijung,Zhao, Tianning,et al. Resolving the mechanisms of hygroscopic growth and cloud condensation nuclei activity for organic particulate matter[J]. NATURE COMMUNICATIONS,2019,9. |
APA | Liu, Pengfei.,Song, Mijung.,Zhao, Tianning.,Gunthe, Sachin S..,Ham, Suhan.,...&Martin, Scot T..(2019).Resolving the mechanisms of hygroscopic growth and cloud condensation nuclei activity for organic particulate matter.NATURE COMMUNICATIONS,9. |
MLA | Liu, Pengfei,et al."Resolving the mechanisms of hygroscopic growth and cloud condensation nuclei activity for organic particulate matter".NATURE COMMUNICATIONS 9(2019). |
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