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Effect of pH on the synthesis of Cuo nanosheets by quick precipitation method


Citation

Shahmiri, Mahdi and Ibrahim, Nor Azowa and Zainuddin, Norhazlin and Asim, Nilofar and Bakhtyar, B. and Zaharim, Azami and Sopian, Kamaruzzaman (2013) Effect of pH on the synthesis of Cuo nanosheets by quick precipitation method. WSEAS Transactions on Environment and Development, 9 (2). pp. 137-145. ISSN 1790-5079; ESSN: 2224-3496

Abstract

In this paper, copper oxide nanosheets were successfully fabricated in polyvinylpyrrolidone (PVP) via a quick precipitation method. The synthesized CuO nanostructures were characterized by X-ray diffraction (XRD), UV-vis spectroscopy, transmission electron microscopy (TEM), field emission scanning electron microscopy, energy dispersive analysis of X-ray, and Fourier transform infrared (FT-IR) spectroscopy. The effect of pH on the final product was investigated. The results show that a higher volume ratio of NaOH results in well-defined CuO nanosheets. XRD results confirmed the formation of pure CuO with a monoclinic structure at higher pH, whereas gerhardtite was formed at lower pH. TEM results indicate that sheet-like CuO were formed at higher pH. FT-IR results show that C=O in PVP coordinated with CuO and formed a protection layer. The generation of CuO nanostructures was proven by UV-vis spectroscopy. The mechanism of the reaction was also discussed.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Publisher: World Scientific and Engineering Academy and Society
Keywords: Cuo; Nanorods; Nanosheets; Orientated attachment mechanism (OA); Polyvinylpyrrolidone; Quick precipitation.
Depositing User: Umikalthom Abdullah
Date Deposited: 24 Sep 2014 01:05
Last Modified: 03 Feb 2016 03:32
URI: http://psasir.upm.edu.my/id/eprint/30340
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