Abstract
A simple chemical route using ternary 1-butanol/olive/water microemulsion systems without surfactant has been developed to synthesize spherical CdS nanoparticles with an average diameter of ca. 45 nm. The CdS nanoparticles were investigated by transmission electron microscopy (TEM), UV-VIS optical absorption spectrum and Fourier transform infrared (FTIR) spectroscopy measurements. By comparision with previous work, the present work confirmed the effective role of the surfactant in formation nanoparticles.
Highlights
At the moment nanostructural materials have become attractive because of their unique characteristics that can hardly be obtained from conventional bulk materials (Alivisatos, 1996) owing to their quantum size and surface effects
We have developed a method to produce CdS nanoparticles of small sizes using new microemulsions systems without surfactant
transmission electron microscopy (TEM) was used to examine the morphology of the CdS nanoparticles on a JEOL transmission electron microscope
Summary
At the moment nanostructural materials have become attractive because of their unique characteristics that can hardly be obtained from conventional bulk materials (Alivisatos, 1996) owing to their quantum size and surface effects. Synthesis of nanoparticles in water-in-oil microemulsions, can yield particles nearly monodisperse in size (Ethayaraja, et al, 2007; Caponetti, et al, 2006; Tan, et al, 2011). In this investigation, we have developed a method to produce CdS nanoparticles of small sizes using new microemulsions systems without surfactant. We have developed a method to produce CdS nanoparticles of small sizes using new microemulsions systems without surfactant These ternary mixtures consisting of an inexpensive non-toxic oil (Olive oil), a short chain-alcohol and water represent thermodynamically stable dispersion of nanometer-sized water drops in a continuous oil medium. The structural aspects of this surfactantless microemulsion were discussed by the camparison with my previous work
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