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Title: Studies on the evolution of ZnO morphologies in a thermohydrolysis technique and evaluation of their functional properties
Authors: Anas, S
Mangalaraja, R V
Ananthakumar, S
Keywords: Zinc oxide
Morphology
Surfactant
Photocatalysis
Photoluminescence
Optical-properties
Nanocrystalline zno
Nanowires
Nanostructures
Microtubes
Fabrication
Issue Date: 2010
Publisher: Elsevier
Citation: Journal of Hazardous Materials 175(1-3):889-895;15 Mar 2010
Abstract: The transformation of ZnO morphologies in an in situ thermohydrolysis technique using hexamethylene tetramine is studied with and without surfactants. The photocatalytic and photoluminescence properties of these morphologically tuned ZnO morphologies are studied and the results presented. In the absence of any surfactants, the HMTA assisted in situ hydrolysis resulted in microtube and multipod morphologies. The addition of nonionic [Span-80] and cationic [CTAB] surfactants transforms the morphologies to microspheres. microdiscs and nanorods. The photoluminescence analysis shows a red luminescence in nanorods and green-indigo and blue-green emissions in microtubes and other morphologies. Photocatalytic reaction efficiency in UV light follows the order microtubes > nanorods > microdiscs > microspheres > multipods.
URI: http://ir.niist.res.in:8080/jspui/handle/123456789/680
ISSN: 0304-3894
Appears in Collections:2010

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