Template-Free Sonochemical Preparation of ZnO Cauliflower-Like Microstructures

Abstract:

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Cauliflower-like ZnO superstructures composed of nanoparticles in large scale were successfully synthesized only using Zn(CH3COO)2•2H2O and triethanolamine (TEA) aqueous solution mixtures via a template-free sonochemical process at the ambient condition. A number of techniques, including X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), UV-visible absorption and photoluminescence (PL) were used to characterize the obtained ZnO products. It has been interestingly found that UV-Vis absorption spectrum shows not only a weak and sharp peak at 367 nm in ultraviolet region but also a strong and broad band centered at 564 nm in visible region. The possible formation mechanism of ZnO cauliflower-like structure is also proposed.

Info:

Periodical:

Materials Science Forum (Volumes 663-665)

Edited by:

Yuan Ming Huang

Pages:

125-128

DOI:

10.4028/www.scientific.net/MSF.663-665.125

Citation:

C. H. Deng et al., "Template-Free Sonochemical Preparation of ZnO Cauliflower-Like Microstructures", Materials Science Forum, Vols. 663-665, pp. 125-128, 2011

Online since:

November 2010

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Price:

$35.00

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