Hybrid water adsorption and solubility partitioning for aerosol hygroscopicity and droplet growth
<p>In this work, we studied the cloud condensation nuclei (CCN) activity and subsaturated droplet growth of phthalic acid (PTA), isophthalic acid, (IPTA) and terephthalic acid (TPTA), significant benzene polycarboxylic acids and structural isomers found in the atmosphere. Köhler theory (KT) c...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2022-09-01
|
| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://acp.copernicus.org/articles/22/12769/2022/acp-22-12769-2022.pdf |
| _version_ | 1828223574028058624 |
|---|---|
| author | K. Gohil C.-N. Mao D. Rastogi C. Peng C. Peng M. Tang M. Tang M. Tang A. Asa-Awuku A. Asa-Awuku |
| author_facet | K. Gohil C.-N. Mao D. Rastogi C. Peng C. Peng M. Tang M. Tang M. Tang A. Asa-Awuku A. Asa-Awuku |
| author_sort | K. Gohil |
| collection | DOAJ |
| description | <p>In this work, we studied the cloud condensation nuclei (CCN) activity and subsaturated droplet growth of phthalic acid (PTA), isophthalic acid, (IPTA) and terephthalic acid (TPTA), significant benzene polycarboxylic acids and structural isomers found in the atmosphere. Köhler theory (KT) can be effectively applied for hygroscopicity analysis of PTA due to its higher aqueous solubility compared to IPTA and TPTA. As with other hygroscopicity studies of partially water-soluble and effectively water-insoluble species, the supersaturated and subsaturated hygroscopicity derived from KT principles do not agree. To address the disparities in the sub- and supersaturated droplet growth, we developed a new analytical framework called the Hybrid Activity Model (HAM). HAM incorporates the aqueous solubility of a solute within an adsorption-based activation framework. Frenkel–Halsey–Hill (FHH) adsorption theory (FHH-AT) was combined with the aqueous solubility of the compound to develop HAM. Analysis from HAM was validated using laboratory measurements of pure PTA, IPTA, TPTA and PTA–IPTA internal mixtures. Furthermore, the results generated using HAM were tested against traditional KT and FHH-AT to compare their water uptake predictive capabilities. A single hygroscopicity parameter was also developed based on the HAM framework. Results show that the HAM-based hygroscopicity parameter can successfully simulate the water uptake
behavior of the pure and internally mixed samples. Results indicate that the HAM framework may be applied to atmospheric aerosols of varying chemical structures and aqueous solubility.</p> |
| first_indexed | 2024-04-12T17:09:23Z |
| format | Article |
| id | doaj.art-ab02e1dc1d7648e890cd8f47bd706170 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-04-12T17:09:23Z |
| publishDate | 2022-09-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-ab02e1dc1d7648e890cd8f47bd7061702022-12-22T03:23:50ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242022-09-0122127691278710.5194/acp-22-12769-2022Hybrid water adsorption and solubility partitioning for aerosol hygroscopicity and droplet growthK. Gohil0C.-N. Mao1D. Rastogi2C. Peng3C. Peng4M. Tang5M. Tang6M. Tang7A. Asa-Awuku8A. Asa-Awuku9Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USADepartment of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USADepartment of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USAState Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environmental Protection and Resources Utilization, and Guangdong–Hong Kong–Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou 510640, ChinaState Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environmental Protection and Resources Utilization, and Guangdong–Hong Kong–Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou 510640, ChinaEarth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, ChinaDepartment of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USADepartment of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA<p>In this work, we studied the cloud condensation nuclei (CCN) activity and subsaturated droplet growth of phthalic acid (PTA), isophthalic acid, (IPTA) and terephthalic acid (TPTA), significant benzene polycarboxylic acids and structural isomers found in the atmosphere. Köhler theory (KT) can be effectively applied for hygroscopicity analysis of PTA due to its higher aqueous solubility compared to IPTA and TPTA. As with other hygroscopicity studies of partially water-soluble and effectively water-insoluble species, the supersaturated and subsaturated hygroscopicity derived from KT principles do not agree. To address the disparities in the sub- and supersaturated droplet growth, we developed a new analytical framework called the Hybrid Activity Model (HAM). HAM incorporates the aqueous solubility of a solute within an adsorption-based activation framework. Frenkel–Halsey–Hill (FHH) adsorption theory (FHH-AT) was combined with the aqueous solubility of the compound to develop HAM. Analysis from HAM was validated using laboratory measurements of pure PTA, IPTA, TPTA and PTA–IPTA internal mixtures. Furthermore, the results generated using HAM were tested against traditional KT and FHH-AT to compare their water uptake predictive capabilities. A single hygroscopicity parameter was also developed based on the HAM framework. Results show that the HAM-based hygroscopicity parameter can successfully simulate the water uptake behavior of the pure and internally mixed samples. Results indicate that the HAM framework may be applied to atmospheric aerosols of varying chemical structures and aqueous solubility.</p>https://acp.copernicus.org/articles/22/12769/2022/acp-22-12769-2022.pdf |
| spellingShingle | K. Gohil C.-N. Mao D. Rastogi C. Peng C. Peng M. Tang M. Tang M. Tang A. Asa-Awuku A. Asa-Awuku Hybrid water adsorption and solubility partitioning for aerosol hygroscopicity and droplet growth Atmospheric Chemistry and Physics |
| title | Hybrid water adsorption and solubility partitioning for aerosol hygroscopicity and droplet growth |
| title_full | Hybrid water adsorption and solubility partitioning for aerosol hygroscopicity and droplet growth |
| title_fullStr | Hybrid water adsorption and solubility partitioning for aerosol hygroscopicity and droplet growth |
| title_full_unstemmed | Hybrid water adsorption and solubility partitioning for aerosol hygroscopicity and droplet growth |
| title_short | Hybrid water adsorption and solubility partitioning for aerosol hygroscopicity and droplet growth |
| title_sort | hybrid water adsorption and solubility partitioning for aerosol hygroscopicity and droplet growth |
| url | https://acp.copernicus.org/articles/22/12769/2022/acp-22-12769-2022.pdf |
| work_keys_str_mv | AT kgohil hybridwateradsorptionandsolubilitypartitioningforaerosolhygroscopicityanddropletgrowth AT cnmao hybridwateradsorptionandsolubilitypartitioningforaerosolhygroscopicityanddropletgrowth AT drastogi hybridwateradsorptionandsolubilitypartitioningforaerosolhygroscopicityanddropletgrowth AT cpeng hybridwateradsorptionandsolubilitypartitioningforaerosolhygroscopicityanddropletgrowth AT cpeng hybridwateradsorptionandsolubilitypartitioningforaerosolhygroscopicityanddropletgrowth AT mtang hybridwateradsorptionandsolubilitypartitioningforaerosolhygroscopicityanddropletgrowth AT mtang hybridwateradsorptionandsolubilitypartitioningforaerosolhygroscopicityanddropletgrowth AT mtang hybridwateradsorptionandsolubilitypartitioningforaerosolhygroscopicityanddropletgrowth AT aasaawuku hybridwateradsorptionandsolubilitypartitioningforaerosolhygroscopicityanddropletgrowth AT aasaawuku hybridwateradsorptionandsolubilitypartitioningforaerosolhygroscopicityanddropletgrowth |