| Autor: |
Yamaguchi, Toshio, Matsuo, Shun-ichiro, Yoshida, Koji, Kurisaki, Tsutomu, Ishizaka, Shoji, Ohara, Koji |
| Předmět: |
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| Zdroj: |
Journal of Solution Chemistry; May2024, Vol. 53 Issue 5, p610-625, 16p |
| Abstrakt: |
Aerosol droplets are fully involved in forming clouds and play a critical role in global climate change. The investigation of the properties, speciation, and structure of aerosol droplets at a molecular level is highly needed for understanding the physicochemical behaviors and processes of aerosol droplets. We investigate the composition, speciation, and structure of a single aqueous MgSO4 droplet of 1 mm size ultrasonically levitated in the air and bulk solutions under ambient conditions by in situ Raman and synchrotron X-ray scattering. The composition and speciation are determined by measuring Raman spectra of the sulfate ion's S–O band and water's O–H bands. The X-ray data are subjected to empirical potential structure refinement modeling to extract the site–site pair correlation function, coordination number distribution, and 3-D structure for the ion solvation, association, and solvent water. In situ X-ray scattering measurements observe the crystallization of MgSO4 hydrates from a droplet. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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