Influence of salt concentration on the formation of Pickering emulsions.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 32685949.
- Also identified by DOI 10.1039/d0sm00321b.
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Abstract
Here we study emulsification in a model experimental system comprised of water, an oil and colloidal particles. The particles are charge-stabilised colloidal silica; unsurprisingly, by varying the concentration of salt the degree of flocculation of the particles can be modified. The influence of salt on the formation of particle-stabilised oil droplets goes well beyond considerations of the colloidal stability of the particles. Our results demonstrate that the influence of salt on the particle-particle interaction is less important for emulsion formation than the influence of salt on both the particle wettability and the particle-interface interaction.