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Formation mechanism of spherical oxide particles containing dye

Published online by Cambridge University Press:  31 January 2011

Sixin Wu  and
Congshan Zhu
Sixin Wu
Affiliation:
Shanghai Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, P.O. 800-216, Shanghai, 201800, People's Republic of China
Congshan Zhu
Affiliation:
Shanghai Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, P.O. 800-216, Shanghai, 201800, People's Republic of China
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Abstract

2-[3-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidine)-1-propenyl]-1,3,3-trimethyl-3H-indolium idoide (HICI) dye-doped SiO2 particles were synthesized by sol-gel method. Dimension, diameter, distribution, and homogeneity of the particles are closely related to the positively charged dye concentration, corresponding to the zeta potential of the particles. When the dye concentration reaches about 7.8 × 10−4 mol/mol SiO2, corresponding to the isoelectric point of the particles, the maximum particle size and the most homogeneity can be reached.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 5 , May 1999 , pp. 2088 - 2091
Copyright
Copyright © Materials Research Society 1999

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References

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