Intentionally Added Ionic Surfactants Induce Jones-Ray Effect at Air-Water Interface

Yuki Uematsu, Kengo Chida, Hiroki Matsubara

研究成果: ジャーナルへの寄稿学術誌査読

8 被引用数 (Scopus)

抄録

The Jones-Ray effect is an anomalous minimum in the surface tension of aqueous electrolytes at millimolar salt concentrations. We experimentally demonstrated that intentionally added ionic surfactants induce the Jones-Ray effect. The one-dimensional Poisson-Boltzmann theory, including the effect of surfactant adsorption and salt depletion, excellently agrees with the obtained experimental data. All the parameters of the ion-specific surface affinities used in the theory are consistent with previous experiments. These results strongly suggest that the Jones-Ray effect observed so far has been induced by the inevitable contamination of the air-water interfaces.

本文言語英語
ページ(範囲)45-48
ページ数4
ジャーナルColloids and Interface Science Communications
27
DOI
出版ステータス出版済み - 11月 2018

!!!All Science Journal Classification (ASJC) codes

  • バイオテクノロジー
  • 物理化学および理論化学
  • 表面、皮膜および薄膜
  • コロイド化学および表面化学
  • 材料化学

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