• Vol 3, No 1 (2012)
  • Chemical Engineering

A Study Of Cadmium Sulfide Nanoparticles With Starch As A Capping Agent

M. Rozi Mat Dris, Chan Kok Sheng, M. Ikmar Nizam Isa, Mohd Hasmizam Razali


Publish at : 01 Dec 2011
IJtech : IJtech Vol 3, No 1 (2012)
DOI : https://doi.org/10.14716/ijtech.v3i1.77

Cite this article as:

Dris, M.R.M., Sheng, C.K., Isa, M.I.N., Razali, M.H., 2012. A Study Of Cadmium Sulfide Nanoparticles With Starch As A Capping Agent. International Journal of Technology. Volume 3(1), pp. 1-7

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M. Rozi Mat Dris Departement of Physical Sciences, Faculty of Sciences and Technology, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
Chan Kok Sheng Departement of Physical Sciences, Faculty of Sciences and Technology, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
M. Ikmar Nizam Isa Departement of Physical Sciences, Faculty of Sciences and Technology, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
Mohd Hasmizam Razali Department of Chemistry Sciences, Faculty of Sciences and Technology, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
Email to Corresponding Author

Abstract
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Capping agents such as starch can be used to protect semiconductor nanoparticles from aggregation and obtain uniform structures. Cadmium sulfide (CdS) nanoparticles with starch as a capping agent were prepared with an aqueous precipitation technique at different pH levels to study the optimum condition for producing a narrow distribution of nanoparticles. The morphology of the prepared nanoparticles was measured by scanning electron microscopy (SEM). Grain sizes of the samples determined by X-ray Diffraction (XRD) with Scherer’s equation were relatively dependet on the pH applied in the synthesized process. Infrared spectroscopy (FT-IR) indicated that the starch and the nanoparticles were bonded by R-N=C=S bonds, but bondinbg depended on the pH used. The band gap of the CdS nanoparticles measured by UV-Vis spectroscopy was 2.39 eV, which was lower than CdS in bulk phase because of distorted structures in obtained CdS nanoparticles.

Aqueous technic, Cadmium sulfide (CdS), Capped agent, Nanoparticles, Starch

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