Effects of surfactants on the formation and the stability of interfacial nanobubbles

Contamination has previously been invoked to explain the flat shape and the long lifetimes of interfacial nanobubbles (INBs). In this study, the effects of surfactants on the formation and the stability of INBs were investigated when surfactants were added to the system before, during, and after the...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 28(2012), 28 vom: 17. Juli, Seite 10471-7
1. Verfasser: Zhang, Xuehua (VerfasserIn)
Weitere Verfasser: Uddin, Md Hemayet, Yang, Haijun, Toikka, Gary, Ducker, William, Maeda, Nobuo
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2012
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Micelles Surface-Active Agents Sodium Dodecyl Sulfate 368GB5141J
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520 |a Contamination has previously been invoked to explain the flat shape and the long lifetimes of interfacial nanobubbles (INBs). In this study, the effects of surfactants on the formation and the stability of INBs were investigated when surfactants were added to the system before, during, and after the standard solvent exchange procedure (SSEP) for the formation of INBs. The solutions of sodium dodecyl sulfate (SDS) above critical micelle concentration were found to have little effect on the bubble stability. Likewise, cleaning of the substrate with a surfactant solution had little effect. In contrast, addition of a water-insoluble surfactant during the formation dramatically reduced the INBs. Finally, repeated application of SSEP to surfactant-coated substrates progressively rinsed the surfactant off the system. Thus, we found no evidence to support the hypothesis that (1) INBs are stabilized by a layer of insoluble organic contaminant or that (2) SSEP introduces surface-active materials to the system that could stabilize INBs 
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650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Uddin, Md Hemayet  |e verfasserin  |4 aut 
700 1 |a Yang, Haijun  |e verfasserin  |4 aut 
700 1 |a Toikka, Gary  |e verfasserin  |4 aut 
700 1 |a Ducker, William  |e verfasserin  |4 aut 
700 1 |a Maeda, Nobuo  |e verfasserin  |4 aut 
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