Diffusiophoresis

Diffusiophoresis is a spontaneous motion of dispersed particles in a fluid induced by a diffusion gradient (also called concentration gradient) of molecular substances that are dissolved in the fluid. This gradient affects structure of the particles in an interfacial double layer and causes sliding motion of the fluid relative to the particle surface.

History

Diffusiophoresis was theoretically predicted and experimentally established by B. V. Derjaguin and others in 1947.^[1]

Capillary osmosis

Capillary osmosis is the effect that is reverse to diffusiophoresis, similar to the way that electro-osmosis is reverse to electrophoresis.^[2]

See also

• Electrokinetic phenomena

References

1. Derjaguin, B.V., Sidorenko, G.P., Zubashenko, E.A. and Kiseleva, E.B. , Kolloid Zh., vol.9, #5, 335–348 (1947).
2. Dukhin, S.S. & Derjaguin, B.V. "Electrokinetic Phenomena", J. Willey and Sons, 1974.

Further Reading

• Santachiara, Gianni; Prodi, Franco; Belosi, Franco (2012). "A Review of Termo- and Diffusio-Phoresis in the Atmospheric Aerosol Scavenging Process. Part 1: Drop Scavenging". Atmospheric and Climate Sciences 02 (02): 148–158. doi:10.4236/acs.2012.22016. ISSN 2160-0414.
• Anderson, John L.; Prieve, Dennis C. (2006). "Diffusiophoresis: Migration of Colloidal Particles in Gradients of Solute Concentration". Separation & Purification Reviews 13 (1): 67–103. doi:10.1080/03602548408068407. ISSN 1542-2119.