Synthesis of CdS Nanoparticles via AOT-Water-n-Heptane Microemulsion Technique

Abstract:

The aim of the study was to synthesis the CdS nanoparticles via AOT-water-n-heptane microemulsion technique. Ternary phase diagram was constructed to obtain the concentration range of oil, surfactant and water. Three main phases form on the ternary phase diagram of AOT-water-n-heptane, which were gel, cloudy and clear phases. The clear phase was heptane rich region. Meanwhile, cloudy phase have consisted two phases and the gel phase was due to high concentration of AOT. The result showed that clear phase region shrink when the Cd²⁺ and S^2-solvent was added or replaced the water component of the tertiary system.The existence of CdS nanoparticles with average size of 14.0 nm has been calculated by using UV-Vis Spectrometry meanwhile the TEM image showed that the size of CdS nanoparticles was about 49-89 nm. It also have concluded that the same concentration at solvents Cd²⁺ and S^2- does not effected the size of nanoparticles.

• Periodical: Materials Science Forum (Volume 756)
• Pages: 85-90
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.756.85
• Online since: May 2013
• Authors: Rabiahtul Zulkafli, Norinsan Kamil Othman, Muhammad Azmi Abdul Hamid, Azman Jalar
• Keywords: AOT, Microemulsion, Nanoparticle, Surfactant, UV-VIS

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