Interaction of nanoparticles with ideal liquid-liquid interfaces

Cheung, David and Bon, Stefan A.F. (2009) Interaction of nanoparticles with ideal liquid-liquid interfaces. Physical Review Letters, 102 (6). 066103. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.102.066103)

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Abstract

Using molecular simulations the interaction between a noncharged nanoparticle and an ideal liquid-liquid interface is studied. The free energy profile as function of nanoparticle-interface separation is determined using Wang-Landau sampling. Comparison between the simulation results and macroscopic theories shows that the latter give a poor description of the free energy profile. In particular, they underestimate both the range of interaction between the particle and the interface and its strength, with the discrepancy lessening as the particle radius increases. On increasing the solvent chemical potential the interaction strength increases and the interaction range decreases due to the increase in interfacial tension and consequent decrease in interfacial width.

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• Item metadata

  Item type:	Article
  ID code:	43476
  Dates:	Date Event 13 February 2009 Published
  Subjects:	Science > Chemistry
  Department:	Faculty of Science > Pure and Applied Chemistry
  Depositing user:	Pure Administrator
  Date deposited:	13 Apr 2013 12:22
  Last modified:	27 Nov 2024 01:07
  URI:	https://strathprints.strath.ac.uk/id/eprint/43476