Single w/o microemulsion templating of CdS nanoparticles

N. M. Huang, C. S. Kan, P. S. Khiew, Shahidan Radiman

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We report the synthesis of monodispersed CdS nanoparticle with tunable size by controlling the reaction aging time in a single water in oil (w/o) microemulsion system. The w/o microemulsion system consists of nonionic surfactant poly (oxyethylene)5 nonyl phenol ether (NP5), poly (oxyethylene)10 nonyl phenol ether (NP10), cyclohexane and aqueous solution (cadmium salt and thioacetamide). Thioacetamide (TAA) has been utilized as a source for slow release of sulfur ions in the in situ synthesis of CdS. UV-Visible spectra shows obvious blue shift for the CdS nanoparticles as compared to the bulk material due to quantum size effect. CdS nanoparticle size depends on the reaction aging time where longer reaction aging time yields bigger particles. CdS nanoparticles growth behaviour as a function of reaction aging time in the microemulsion system was characterized by UV-Visible spectroscopy. The particle growth follows a power law with an exponential in the order of 0.17. Energy Filter Transmissions Electron Microscopy (EFTEM) reveals monodispersed CdS nanoparticles with standard deviation, σ less than 8%.

Original languageEnglish
Pages (from-to)2411-2415
Number of pages5
JournalJournal of Materials Science
Volume39
Issue number7
DOIs
Publication statusPublished - 1 Apr 2004

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Microemulsions
Oils
Nanoparticles
Aging of materials
Water
Thioacetamide
Ether
Phenols
Ethers
Nonionic surfactants
Cyclohexane
Cadmium
Sulfur
Salts
Spectroscopy
Ions
Transmission electron microscopy
nonylphenol

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Single w/o microemulsion templating of CdS nanoparticles. / Huang, N. M.; Kan, C. S.; Khiew, P. S.; Radiman, Shahidan.

In: Journal of Materials Science, Vol. 39, No. 7, 01.04.2004, p. 2411-2415.

Research output: Contribution to journalArticle

Huang, N. M. ; Kan, C. S. ; Khiew, P. S. ; Radiman, Shahidan. / Single w/o microemulsion templating of CdS nanoparticles. In: Journal of Materials Science. 2004 ; Vol. 39, No. 7. pp. 2411-2415.
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