Articles | Volume 23, issue 3
https://doi.org/10.5194/acp-23-2079-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-2079-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Feb 2023
Research article |
| 09 Feb 2023
| 09 Feb 2023
Atmospheric nanoparticles hygroscopic growth measurement by a combined surface plasmon resonance microscope and hygroscopic tandem differential mobility analyzer
Zhibo Xie
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
Innovation excellence center for urban atmospheric environment of CAS, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
now at: Center for Aerosol Science and Engineering, Washington
University in St. Louis, St. Louis, MO 63130, USA
Huaqiao Gui
CORRESPONDING AUTHOR
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
Yang Liu
Advanced Laser Technology Laboratory of Anhui Province, Department of Optics and Optical Engineering, University of Science and Technology of
China, Hefei, Anhui, 230026, China
Bo Yang
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
Haosheng Dai
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
Hang Xiao
Innovation excellence center for urban atmospheric environment of CAS, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
Douguo Zhang
Advanced Laser Technology Laboratory of Anhui Province, Department of Optics and Optical Engineering, University of Science and Technology of
China, Hefei, Anhui, 230026, China
Da-Ren Chen
Particle Laboratory, Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, 401 West Main Street, Richmond, VA 23284, USA
Jianguo Liu
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
Innovation excellence center for urban atmospheric environment of CAS, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
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Atmos. Meas. Tech., 18, 7337–7347, https://doi.org/10.5194/amt-18-7337-2025, https://doi.org/10.5194/amt-18-7337-2025, 2025
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We propose a novel method which is accurate in identification of micro-dynamics phase transition processes for ammonium sulfate aerosols by using two-dimensional correlation spectroscopy. we explore more sophisticated structural evolution patterns and the precise sequence of hydrogen-bonding rearrangements. These findings deepen the mechanistic understanding of aerosol phase transitions at the molecular scale, which could inspire new research directions in atmospheric heterogeneous chemistry.
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Mercury (Hg) isotopic compositions in aerosols are the mixed results of emission sources and atmospheric processes. This study presents Hg isotopic compositions in PM2.5 from different types of locations and total Hg from offshore surface seawater. The results indicate that atmospheric transformations induce significant mass independent fractionation of Hg isotopes, which obscures Hg isotopic signatures of initial emissions.
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Short summary
The hygroscopic growth of single nanoparticles is important for hygroscopic characteristic analysis of atmospheric particles and for scientific studies involving atmospheric particles. Based on the hygroscopicity difference of subgroups of atmospheric nanoparticles, the classification and proportion analysis of atmospheric nanoparticles has been completed, which has potential significance in predicting the contribution of the atmospheric particulate hygroscopicity and particle growth mechanism.
The hygroscopic growth of single nanoparticles is important for hygroscopic characteristic...
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