Interfacial Solvation and Surface pH of Phenol and Dihydroxybenzene Aqueous Nanoaerosols Unveiled by Aerosol VUV Photoelectron Spectroscopy
| Autor: | Ping-Cheng Lin, Zhong-Hang Wu, Tzu-Ping Huang, Wei-Ren Chen, Yin-Yu Lee, Yu-Lin Li, Chia C. Wang, Meng-Sin Chen |
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| Rok vydání: | 2017 |
| Předmět: |
Catechol
Aqueous solution Hydroquinone Chemistry Inorganic chemistry Solvation 02 engineering and technology Resorcinol 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films chemistry.chemical_compound X-ray photoelectron spectroscopy Materials Chemistry Phenol Physical and Theoretical Chemistry Ionization energy 0210 nano-technology |
| Zdroj: | The Journal of Physical Chemistry B. 121:1054-1067 |
| ISSN: | 1520-5207 1520-6106 |
| DOI: | 10.1021/acs.jpcb.6b10201 |
| Popis: | Although the significance of aqueous interfaces has been recognized in numerous important fields, it can be even more prominent for nanoscaled aqueous aerosols because of their large surface-to-volume ratios and prevalent existence in nature. Also, considering that organic species are often mixed with aqueous aerosols in nature, a fundamental understanding of the electronic and structural properties of organic species in aqueous nanoaerosols is essential to learn the interplay between water and organic solutes under the nanoscaled size regime. Here, we report for the first time the vacuum ultraviolet photoelectron spectroscopy of phenol and three dihydroxybenzene (DHB) isomers including catechol, resorcinol, and hydroquinone in the aqueous nanoaerosol form. By evaluating two photoelectron features of the lowest vertical ionization energies originated from the b1(π) and a2(π) orbitals for phenolic aqueous nanoaerosols, their interfacial solvation characteristics are unraveled. Phenolic species appear to re... |
| Databáze: | OpenAIRE |
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