Temperature Induced Morphology Transformation of ZnO under Hydrothermal Condition

Abstract:

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ZnO nanostructures with different morphology were successfully prepared via a hexamethylendiamine-assisted hydrothermal synthesis route by only adjusting reaction temperature. The prepared ZnO samples were characterized by powder X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and high resolution TEM (HRTEM). Results indicated that uniform flake-like ZnO nanoparticles with a similar thickness of about 70 nm and flower-like ZnO nanostructures assembled by prism-like nanorods were prepared at 120 °C and 180 °C, respectively. Possible mechanisms for the formation of ZnO with different morphologies were discussed. The photocatalytic properties of the as-prepared flake-like ZnO nanoparticles and flower-like ZnO nanostructures were studied.

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Periodical:

Edited by:

Ran Chen

Pages:

559-564

DOI:

10.4028/www.scientific.net/MSF.694.559

Citation:

Y. W. Li et al., "Temperature Induced Morphology Transformation of ZnO under Hydrothermal Condition", Materials Science Forum, Vol. 694, pp. 559-564, 2011

Online since:

July 2011

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$35.00

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