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Solvent Effect on zeta Potential at an Aqueous/Oil Interface in Surfactant-Free Emulsion / Langmuir

Authors
  • Wu, Yong
  • Li, Qiang
  • Deng, Fuli
  • Liang, Xiangfeng
  • Liu, Huizhou
Publication Date
Mar 04, 2014
Source
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
Keywords
License
Unknown
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Abstract

The present study prepared a size-controllable, uniform, and surfactant-free emulsification to investigate the zeta potential of the solvent effect. The results showed that the ratio of electrophoretic mobility changed with droplet diameter, and the correct factor of the zeta potential was determined. The effect of functional groups on the zeta potential was further studied in the presence of an organic hydrophilic solvent. The study characterized the effects of pH, ionic strength, and ionic type on the zeta potential and indicated that the solvents were able to modulate the local electrochemical environment, thus leading to the redistribution of interface charges. / The present study prepared a size-controllable, uniform, and surfactant-free emulsification to investigate the zeta potential of the solvent effect. The results showed that the ratio of electrophoretic mobility changed with droplet diameter, and the correct factor of the zeta potential was determined. The effect of functional groups on the zeta potential was further studied in the presence of an organic hydrophilic solvent. The study characterized the effects of pH, ionic strength, and ionic type on the zeta potential and indicated that the solvents were able to modulate the local electrochemical environment, thus leading to the redistribution of interface charges.

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