Plasmon-activated water can form stronger intermolecular hydrogen bonding with water-soluble alcohols and dissolve more hydrophobic solutes

Shih Hao Yu, Chun Chao Chang, Fu Der Mai, Chih Ping Yang, Yu Chuan Liu

研究成果: 雜誌貢獻文章同行評審

1 引文 斯高帕斯(Scopus)

摘要

Liquid water, as the most environmentally friendly polar solvent, is popularly used in physical processes and chemical reactions. Its unique properties and activities come from the presence of intermolecular hydrogen bonds (HBs) with itself and other species. Scientists have been discussing properties other than known bulk water for a long time. However, the particular application of water being researched is limited today. Mass-produced active and stable plasmon-activated water (PAW) with a reduced HB network based on hot electron transfer (HET) from resonantly illuminated gold (Au) nanoparticles (NPs) was first created in 2014. In this work, we report its distinct intermolecular HBs with water-soluble alcohols and the solubility of hydrophobic solutes. Interestingly, the densities of PAW in methanol, ethanol, and propanol at various ratios all increased due to stronger HBs between PAW and the alcohols, particularly seen with propanol, compared to deionized water (DIW)-based systems. Moreover, these results reflect the decreased evaporation rates of PAW/alcohol solutions, especially observed for the solution with the maximum increased density, compared to DIW-based systems. Compared to DIW, the solubilities of hydrophobic antioxidants of curcumin and melatonin in PAW increased by ca. 240% and 120%, respectively. Moreover, sunflower oil was more soluble in the more-lipophilic PAW compared to conventional DIW. The distinct increased density of the alcohol/PAW solution lasted for at least 1 week. Innovative PAW has emerged as a promising green active solvent applicable for both hydrophilic and hydrophobic solutions.
原文英語
文章編號131949
期刊Chemical Engineering Journal
427
DOIs
出版狀態已發佈 - 1月 1 2022

ASJC Scopus subject areas

  • 化學 (全部)
  • 環境化學
  • 化學工程 (全部)
  • 工業與製造工程

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