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Silica particle growth in metastable supersaturation solution

Published online by Cambridge University Press:  31 January 2011

Kyung-Soo Kim ,
Jun-Kyung Kim  and
Woo-Sik Kim
Kyung-Soo Kim
Affiliation:
Department of Chemical Engineering, Kyunghee University, Suwon, 449–701, Korea
Jun-Kyung Kim
Affiliation:
Division of Polymer Research, Korea Institute of Science and Technology, Seoul, 134, Korea
Woo-Sik Kim*
Affiliation:
Department of Chemical Engineering, Kyunghee University, Suwon, 449–701, Korea
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

In a metastable solution the particle growth rate of silicon dioxide increased with an increase in the initial supersaturation of the metastable solution and agitation speed in the ranges of 2.5 × 10−4 to 2.0 × 10−3 M and 300–1500 rpm, respectively. Based on a power law expression, the particle growth rate order was estimated as 2.0 independent of the initial supersaturation and agitation speed. Meanwhile, the particle growth rate coefficient was enhanced from 2.0 × 10−3 to 1.4 × 10−2 with increase in the agitation speed from 300 to 1500 rpm. From the experimental data, it would appear that the enhanced particle growth rate resulted from the promotion of molecular transport due to the agitation and driving force of the supersaturation in the particle growth process. A slight addition of sodium chloride into the metastable solution caused a marked reduction of the particle growth rate due to the inhibition of growth process by sodium chloride adsorbed on the particle. This effect of sodium chloride on the particle growth appeared in a significant drop of the particle growth rate coefficient from 4.5 × 10−3 to 8.0×10−4 with increase in the sodium chloride concentration from zero to 5.0×10−3 M, but not in the particle growth rate order. The influence of sodium chloride on the particle growth process of silicon dioxide predicted with a Langmuir isotherm matched with the experimental data.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 2 , February 2001 , pp. 545 - 552
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1.Stober, W., Fink, A., and Bohn, E., J. Colloid. Interface Sci. 26, 62 (1968).CrossRefGoogle Scholar
2.LaMer, V.K. and Dinegar, R.H., J. Am. Chem. Soc. 72, 4847 (1950).CrossRefGoogle Scholar
3.Matsoukas, T. and Gulari, E., J. Colloid. Interface Sci. 124, 252 (1988).CrossRefGoogle Scholar
4.Matsoukas, M. and Gulari, E., J. Colloid. Interface Sci. 132, 13 (1989).CrossRefGoogle Scholar
5.Chen, S-L., Dong, P., Yang, G-H., and Yang, J-J., J. Colloid. Interface Sci. 180, 237 (1996).CrossRefGoogle Scholar
6.Nielson, A.E., Kinetics of Precipitation (Pergamon Press, Oxford, United Kingdom, 1964).Google Scholar
7.Nakanish, K. and Takamiya, Y., Nippon-Seramikkusu-Kyokai-Gakujutsu-Ronbunshi 96, 719 (1988).CrossRefGoogle Scholar
8.Bogush, G.H. and Zukoski, C.F., J. Colloid. Interface Sci. 142, 19 (1991).CrossRefGoogle Scholar
9.Bailey, J.K. and Mecartney, M.L., Colloids Surf. 63, 151 (1992).CrossRefGoogle Scholar
10.Boukari, H., Lin, J.S., and Harris, M.T., Chem. Mater. 9, 2376 (1997).CrossRefGoogle Scholar
11.Nielsen, A.E., Pure Appl. Chem. 453, 2025 (1981)CrossRefGoogle Scholar
12.Nielsen, A.E., J. Cryst. Growth 67, 289 (1984).CrossRefGoogle Scholar
13.Nielsen, A.E., Croatica Chemica Acta 60, 531 (1987).Google Scholar
14.Nancollas, G.H., J. Cryst. Growth 3, 335 (1968).CrossRefGoogle Scholar
15.Nancollas, G.H., Bochner, R.A., Lioios, E., Yoshikawa, Y., Barone, J.P., and Svrjeck, D., AIChE Symposium Series 78, 26 (1982).Google Scholar
16.McCabe, W.L. and Smith, J.C., Unit Operations of Chemical Engineering (McGraw-Hill, Koshaid Printing Co., Tokyo, Japan 1976), p. 237.Google Scholar
17.Mullin, J.W., Crystallization 2nd ed. (Butterworth, London, United Kingdom, 1972), pp. 202–248.Google Scholar
18.Liu, S.T. and Nancollas, G.H., J. Colloid. Interface Sci. 44, 422 (1973).CrossRefGoogle Scholar
19.Liu, S.T. and Nancollas, G.H., J. Colloid. Interface Sci. 52, 582 (1975).CrossRefGoogle Scholar
20.Leung, W.H. and Nancollas, G.H., J. Inorg. Nucl. Chem. 40, 1871 (1978a).CrossRefGoogle Scholar
21.Leung, W.H. and Nancollas, G.H., J. Cryst. Growth 44, 163 (1978b).CrossRefGoogle Scholar
22.Punin, Y.O. and Franke, V.D., Cryst. Res. Technol. 33, 449 (1998).3.0.CO;2-J>CrossRefGoogle Scholar