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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.118  No.1377 (May) (2010)  >  pp.329-332

Journal of the Ceramic Society of Japan
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Synthesis and characterization of nano ZnO and CdO

Rita JOHN1), Sasi Florence SHANMUGARAJ2), Rajakumari RAJARAM2)3) and Tamio ENDO4)
1) Department of Theoretical Physics, University of Madras, Guindy Campus
2) Department of Physics, Mother Teresa Women’s University
3) Department of Physics, Queen Mary’s College
4) Department of Electrical and Electronic Engineering, Mie University

  Nano ZnO synthesized with and without surfactant adopting Solid State Reaction (SSR) method, the later at four different temperatures and by Aqueous Chemical Method (ACM) is reported. CdO synthesized by ACM is also presented. The ZnO nanorods by SSR with surfactant are of hexagonal shape with diameter between 20–30 nm and lengths of about 350–500 nm, while that without surfactant does not exhibit rod like morphology. The particle size increases from 35 to 59 nm with temperature in the range 500 to 800°C. ACM resulted in a particle size of 15–35 nm whose SEM shows the nanoparticles forming flakes. Optical properties are studied. A blue shift is observed where the band gap increases from 3.37 (bulk) to 3.62 eV. The increase in band gap is due to quantum confinement effect. CdO synthesized by ACM was of size 30–70 nm. The XRD pattern of CdO reveals NaCl structure.

ZnO, CdO, Nanorod, Temperature effect, Quantum confinement

Received: May 12, 2009
Accepted: September 10, 2009 , Published online: May 01, 2010
Copyright (c) 2010 The Ceramic Society of Japan



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