| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Interaction of a Spherical Colloid and a Porous Membrane in a Bulk Electrolyte |
| LIAN Zeng-Ju**
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Department of Physics, Ningbo University, Ningbo 315211
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LIAN Zeng-Ju 2011 Chin. Phys. Lett. 28 058201 |
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Abstract A systemic computation of an electrostatic interaction between a charged spherical colloid and a charged porous membrane with a fixed potential is made under the linear Poisson–Boltzmann theory. The colloid moves along the symmetry axis of the membrane and they are both immersed in a bulk electrolyte. In the calculation, a significant attraction between the colloid and the membrane is found. The orifices on or around the centre of the membrane play a major role in the attraction. The effect of the reduced orifice sizes of the membrane on the interaction is taken into account. Furthermore, the electrostatic interaction energies are significantly changed by the variation of ionic strengths (concentration and valence relating the Dybe length).
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| Keywords:
82.70.Dd
82.45.Gj
82.45.Wx
82.35.Rs
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Received: 05 January 2011
Published: 26 April 2011
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[1] Meeren P V, Saveyn H, Kassa S B, Doen W and Leysen R 2004 Phys. Chem. Chem. Phys. 6 1408
[2] Hilal N, Ogunbiyl O O, Miles N J and Nigmatullin R 2005 Sep. Sci. Technol. 40 1957
[3] Vrijenhoek E M, Hong S and Elimelech M 2001 J. Membrane Sci. 188 115
[4] Hoek E M V, Bhattacharjee S and Elimelech M 2003 Langmuir 19 4836
[5] Tang C Y, Kwona Y and Leckiea J O 2009 Desalination 242 149
[6] Shi X Q and Ma Y Q 2007 J. Chem. Phys. 126 125101
[7] Hong S and Elimelech M 1997 J. Membrane Sci. 132 159
[8] Burgh S V D, Fokkink R, Keizer A D and Stuart M A C 2004 Colloids and Surfaces A: Physicochem. Eng. Aspects 242 167
[9] Derjaguin B V and Landau L D 1941 Acta Physicochim. URSS 14 633
[10] Verwey E J W and Overbeek J T G 1948 Theory of the Stability of Lyophobic Colloids (Amsterdam: Elsevier)
[11] Brant J A and Childress A E 2002 J. Membrane Sci. 203 257
[12] Meagher L, Klauber C and Pashley R M 1996 Colloids Surf. A: Physicochem. Eng. Aspects 106 63
[13] Tian W D and Ma Y Q 2011 Soft Matter 7 500
[14] Chen W, Tan S, Ng T K, Ford W T and Tong P 2005 Phys. Rev. Lett. 95 218301
[15] Grier D G and Han Y 2007 Phys. Rev. E 76 041406
[16] Tian W D and Ma Y Q 2009 J. Phys. Chem. B 113 13161
[17] Wang Z Y and Ma Y Q 2009 J. Chem. Phys. 131 244715
[18] Gluckman M J, Pfeffer R and Weinbaum S 1971 J. Fluid Mech. 50 705
[19] Weinbaum S, Ganatos P and Yan Z Y 1990 Ann. Rev. Fluid Mech. 22 275
[20] Yamaguchi A, Uejo F, Yoda T, Uchida T, Tanamura Y, Yamashita T and Teramae N 2004 Nature Mater. 3 337
[21] Raoa M B and Sircar S 1993 J. Membrane Sci. 85 253
[22] Keh H J and Lien L C 1991 J. Fluid Mech. 224 305
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