Journal of Chemical Physics
Feedback | Help | Exit
The Journal of Chemical Physics
Search:
   
 
 
 
Previous Article
Electrical conductivity of water compressed dynamically to pressures of 70–180 GPa (0.7–1.8 Mbar)
The electrical conductivity of water was measured at high pressures (70 to 180 GPa) and temperatures (4000 to 11 000 K) using a reverberating shock wave technique. The measured electrical conductivity...
Next Article
Rotational and diffractive inelastic scattering of a diatom on a corrugated surface: A multiconfiguration time-dependent Hartree study on N2/LiF(001)
Theoretical investigations of molecule–surface scattering are performed using the multiconfiguration time-dependent Hartree method. Rotational and diffractive inelastic scattering of a rigid diat...

Adsorption of colloidal particles by Brownian dynamics simulation: Kinetics and surface structures

J. Chem. Phys. 114, 1366 (2001); doi:10.1063/1.1319317

Issue Date: 15 January 2001

You are not logged in to this journal. Log in

Jeffrey J. Gray and Roger T. Bonnecaze
Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712-1062
Careful control of the microstructure of an adsorbed monolayer of colloidal particles is important for creating nanostructured devices through self-assembly processes. We present a computational model study for self-assembly of colloidal or nanoscale particulate systems. We develop a new technique for simulating colloidal adsorption processes, and we examine the kinetics and the structure formation on the surface. The technique allows the simulation of a nonhomogeneous suspension with an open boundary that is in equilibrium with a bulk suspension of known volume fraction, including the mean-field forces from the bulk solution and particle flux between the simulation box and the bulk. Short-time kinetics follow a power law similar to the case of diffusion-limited adsorption. Long-time kinetics fit a 2/3-power law form [P. Schaaf, A. Johner, and J. Talbot, Phys. Rev. Lett. 66, 1603 (1991)] and kinetic coefficients are calculated. The zeta potential of the particles is the dominant parameter controlling the final surface coverage, but the zeta potential of the adsorbing surface is the dominant control for the ordering of the adsorbed system. Particles with larger Debye layers (lower salt concentrations) order more easily. Jamming limit coverages are compared to existing equivalent hard-disk models and an energetic model. Since the process is kinetically frustrated, particle exclusion effects play a major role in determining coverage as well as structure. ©2001 American Institute of Physics.
History: Received 17 May 2000; accepted 28 August 2000
Permalink: http://link.aip.org/link/?JCPSA6/114/1366/1
BUY THIS ARTICLE   (US$24)
Download HTML Download Sectioned HTML Download PDF (703 kB) View Cart

KEYWORDS and PACS

Keywords
PACS
  • 82.70.Dd
    Physical chemistry and chemical physics Disperse systems; complex fluids Colloids
  • 68.08.-p
    Surfaces and interfaces; thin films and low-dimensional systems (structure and nonelectronic properties) Liquid-solid interfaces
  • 05.40.Jc
    Statistical physics, thermodynamics, and nonlinear dynamical systems Fluctuation phenomena, random processes, noise, and Brownian motion Brownian motion
  • 68.35.Bs
    Surfaces and interfaces; thin films and low-dimensional systems (structure and nonelectronic properties) Solid surfaces and solid-solid interfaces: Structure and energetics Structure of clean surfaces (reconstruction)
  • 68.55.Jk
    Surfaces and interfaces; thin films and low-dimensional systems (structure and nonelectronic properties) Thin film structure and morphology Structure and morphology; thickness; crystalline orientation and texture
  • YEAR: 2001

RELATED DATABASES


To view database links for this article,
you need to log in.
To view database links for this article,
you need to log in.

PUBLICATION DATA

ISSN:
0021-9606 (print)   1089-7690 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (31)
View in Separate Window/Tab
For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. S. H. Park and Y. Xia, Langmuir 15, 266 (1999).
  2. J. D. Joannopoulos, P. R. Villeneuve, and S. Fan, Nature (London) 386, 143 (1997).
  3. B. A. Korgel and D. Fitzmaurice, Adv. Mater. 10, 661 (1998).
  4. S. D. Sitkiewitz, Ph.D. thesis, The University of Texas at Austin, 1999.
  5. J. Talbot, G. Tarjus, P. R. V. Tassel, and P. Viot, Colloids Surf., A 165, 287 (2000).
  6. J. Feder, J. Theor. Biol. 87, 237 (1980).
  7. Z. Adamczyk and P. Warszy[n-acute]ski, Adv. Colloid Interface Sci. 63, 41 (1996).
  8. M. R. Oberholzer et al., J. Colloid Interface Sci. 194, 138 (1997).
  9. I. Pagonabarraga et al., J. Chem. Phys. 105, 7815 (1996).
  10. P. Schaaf, A. Johner, and J. Talbot, Phys. Rev. Lett. 66, 1603 (1991).
  11. Z. Adamczyk, B. Siwek, M. Zembala, and P. Belouschek, Adv. Colloid Interface Sci. 48, 151 (1994).
  12. J. J. Gray, D. H. Klein, R. T. Bonnecaze, and B. A. Korgel, Phys. Rev. Lett. (submitted).
  13. N. Choudhury and S. K. Ghosh, J. Chem. Phys. 108, 7493 (1998).
  14. P. González-Mozuelos and M. Medina-Noyola, J. Chem. Phys. 93, 2109 (1990).
  15. P. González-Mozuelos and M. Medina-Noyola, J. Chem. Phys. 94, 1480 (1991).
  16. P. González-Mozuelos et al., J. Chem. Phys. 95, 2006 (1991).
  17. M. R. Oberholzer, N. J. Wagner, and A. M. Lenhoff, J. Chem. Phys. 107, 9157 (1997).
  18. J. E. Sader, J. Colloid Interface Sci. 188, 508 (1997).
  19. J. Happel and H. Brenner, Low Reynolds Number Hydrodynamics, With Special Applications to Particulate Media, Prentice–Hall International Series in the Physical and Chemical Engineering Sciences (Prentice–Hall, Englewood Cliffs, 1965).
  20. P. S. Grassia, E. J. Hinch, and L. C. Nitsche, J. Fluid Mech. 282, 373 (1995).
  21. M. P. Allen and D. J. Tildesley, Computer Simulation of Liquids (Oxford University Press, Oxford, 1987).
  22. C. A. Johnson and A. M. Lenhoff, J. Colloid Interface Sci. 179, 589 (1996).
  23. M. Semmler, E. K. Mann, J. Ri[c-hacek]ka, and M. Borkovec, Langmuir 14, 5127 (1998).
  24. C. A. Johnson, Ph.D. thesis, University of Delaware, 1997.
  25. K. Chen, T. Kaplan, and M. Mostoller, Phys. Rev. Lett. 74, 4019 (1995).
  26. K. Bagchi and H. C. Andersen, Phys. Rev. Lett. 76, 255 (1996).
  27. J. J. Gray, Ph.D. thesis, The University of Texas at Austin, 2000.
  28. W. B. Russel, D. A. Saville, and W. R. Schowalter, Colloidal Dispersions, Cambridge Monographs on Mechanics and Applied Mathematics (Cambridge University Press, Cambridge, UK, 1989).
  29. B. J. Alder and T. E. Wainwright, Phys. Rev. 127, 359 (1962).
  30. S. Kim and S. J. Karrila, Microhydrodynamics (Butterworth–Heineman, Boston, 1991).
  31. A. J. Goldman, R. G. Cox, and H. Brenner, Chem. Eng. Sci. 22, 637 (1967).

CITING ARTICLES
For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.


Copyright © American Institute of Physics