Role of Stabilizing Agents on Modifying Size and Morphology of ZnO Nanoparticles Synthesized via Sol-Gel Route

S. Gayathri1,* and K.M. Govindaraju2

1Department of Chemistry, AMET University, Kanathur-603 112, India

2Department of Chemistry, P.S.G. College of Arts & Science, Coimbatore-641 014, India

*Corresponding author: E-mail: prabha.gayathris@gmail.com

Abstract

In the present study, the synthesis of ZnO nanoparticles through sol-gel route by using different stabilizing agents namely polyethylene glycol, polyvinyl alcohol and starch have been reported. The particle size calculated from the diffraction pattern of nano ZnO and Al doped ZnO synthesized using starch as stabilizing agent is found to be 19 and 13 nm, respectively. While compared with the other stabilizing agent like poly(vinyl alcohol) and poly(ethylene glycol) that the growth of ZnO nanoparticles size has controlled in starch. In case of poly(vinyl alcohol) and starch stabilized nano ZnO shows the formation of spherical ellipse ZnO nanoparticles without any agglomeration. Size and morphological studies were performed using X-ray diffraction, Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) with energy dispersive X-ray (EDX) analysis and high resolution transmission electron microscope (TEM). The synthesized ZnO possess highly crystalline wurtzite structure. The morphological study clearly reveals that the nano ZnO particle shows spherical eliptical shape.

Keywords

Nano ZnO, Stabilizing agent, Sol-gel route, XRD.

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