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Formation of organically and inorganically passivated CdS nanoparticles in reverse microemulsions.
- Source :
- Colloid & Polymer Science; Feb2010, Vol. 288 Issue 3, p257-263, 7p
- Publication Year :
- 2010
-
Abstract
- Abstract  This paper is focused on the formation of organically and inorganically passivated cadmium sulfide (CdS) nanoparticles in two different types of microemulsions. On the one hand, we used a ternary inverse microemulsion consisting of water, heptanol, and 3-(N,N-dimethyldodecylammonio)propanesulfonate and on the other hand, a poly(ethyleneimine)-based quaternary microemulsion containing water, toluene, pentanol, and sodium dodecylsulfate. UV-vis measurements confirm the formation of CdS-ZnS core-shell nanoparticles in the ternary microemulsion. Using the quaternary microemulsion template phase, polymer capped luminescent CdS nanoparticles can be formed. After a complete solvent evaporation, the nanoparticles are redispersed in water and characterized by means of dynamic light scattering and transmission electron microscopy. From the ternary microemulsion, well-stabilized CdS-ZnS core-shell nanoparticles with diameters of about 5 nm can be redispersed, but from the quaternary microemulsion, only nanoparticle aggregates of about 100 nm. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0303402X
- Volume :
- 288
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Colloid & Polymer Science
- Publication Type :
- Academic Journal
- Accession number :
- 47750633
- Full Text :
- https://doi.org/10.1007/s00396-009-2154-5