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Control of ZnO Shape Using Sonochemical Synthetic Method and Its Photocatalytic Activity

Title
Control of ZnO Shape Using Sonochemical Synthetic Method and Its Photocatalytic Activity
Authors
Lee, Soo-KeunKim, AyoungKim, Sang-Wook
DGIST Authors
Lee, Soo-Keun; Kim, Ayoung
Issue Date
2017
Citation
Nanoscience and Nanotechnology Letters, 9(6), 969-974
Type
Article
Article Type
Article
Keywords
Growth ControlNanorodsPhotocatalytic ActivitySonochemical MethodZinc Oxide
ISSN
1941-4900
Abstract
ZnO nanocrystals were synthesized by a simple sonochemical method from a zinc precursor (zinc chloride, zinc acetate, or zinc nitrate) and hexamethylenetetramine. The length of the ZnO nanorods (NRs) obtained from the zinc acetate precursor could be controlled by altering the solvent ratio (water/methanol), with the length being inversely proportional to the methanol concentration. Although most samples were indexed to hexagonal wurtzite ZnO (JCPDS 36-1451), simonkolleite was obtained from the zinc chloride precursor in 50% methanol. The photocatalytic activities of the ZnO NRs for methylene blue degradation were good, with the NRs from zinc acetate and zinc nitrate obtained in deionized water giving rate constants of 0.0007 and 0.0006 s-1, respectively. The photocatalytic efficiencies of the samples prepared from the acetate precursor decreased with increasing methanol concentration, and the rate constant was 0.00004 s-1 for the NRs obtained in 50% methanol solution. Copyright © 2017 American Scientific Publishers All rights reserved.
URI
http://hdl.handle.net/20.500.11750/4584
DOI
10.1166/nnl.2017.2409
Publisher
American Scientific Publishers
Related Researcher
Files:
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Collection:
Smart Textile Convergence Research Group1. Journal Articles


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