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M. A. SHAH1,*
In this paper, we demonstrate a novel and direct synthesis of high quality zinc oxide (ZnO) nanoparticles by a versatile and a simple approach without using catalysts. The approach is based on a simple reaction of zinc powder and de-ionized (DI) water at relatively low temperatures of 200oC. The formation of ZnO nanoparticles by the reaction of metals with DI water is suggested to occur due to the oxidation of metallic zinc in presence of water. The nanoparticles have diameters varying between 50 to 90nm, with an average diameter of 70 nm. The synthesized ZnO products were characterized in terms of their structural and optical properties. Photoluminescence (Pl) measurements were adopted to analyze the optical properties of nanoparticles; both a strong UV emission and weak deep level emissions were observed. The reported method besides being catalyst free is economical, fast, environmentally benign and free of pollution, which will make it suitable for large scale production.
Zinc powder, De-ionized water, Simple reaction, Nanoparticles, Photoluminescence.
M. A. SHAH, Synthesis of ZnO nanoparticles without catalysts and their photoluminescence, Optoelectronics and Advanced Materials - Rapid Communications, 3, 7, July 2009, pp.672-675 (2009).
Submitted at: June 20, 2009
Accepted at: July 20, 2009
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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