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Sprayed Pyrolyzed ZnO Films with Nanoflake and Nanorod Morphologies and Their Photocatalytic Activity
Joint Authors
Bizarro, Monserrat
Portillo-Vélez, Nora S.
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-04-30
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
There is an increasing interest on the application of ZnO nanorods in photocatalysis and many growth methods have been applied, in particular the spray pyrolysis technique which is attractive for large scale production.
However it is interesting to know if the nanorod morphology is the best considering its photocatalytic activity, stability, and cost effectiveness compared to a nonoriented growth.
In this work we present a systematic study of the effect of the precursor solution (type of salt, solvent, and concentration) on the morphology of sprayed ZnO films to obtain nanoflakes and nanorods without the use of surfactants or catalysts.
The surface properties and structural characteristics of these types of films were investigated to elucidate which morphology is more favorable for photocatalytic applications.
Wettability and photocatalytic experiments were carried out in the same conditions.
After UV irradiation both morphologies became hydrophilic and achieved a dye discoloration efficiency higher than 90%; however, the nanoflake morphology provided the highest photocatalytic performance (99% dye discoloration) and stability and the lowest energy consumption during the synthesis process.
The surface-to-volume ratio revealed that the nanoflake morphology is more adequate for photocatalytic water treatment applications and that the thin nanorods should be preferred over the large ones.
American Psychological Association (APA)
Portillo-Vélez, Nora S.& Bizarro, Monserrat. 2016. Sprayed Pyrolyzed ZnO Films with Nanoflake and Nanorod Morphologies and Their Photocatalytic Activity. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1109279
Modern Language Association (MLA)
Portillo-Vélez, Nora S.& Bizarro, Monserrat. Sprayed Pyrolyzed ZnO Films with Nanoflake and Nanorod Morphologies and Their Photocatalytic Activity. Journal of Nanomaterials No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1109279
American Medical Association (AMA)
Portillo-Vélez, Nora S.& Bizarro, Monserrat. Sprayed Pyrolyzed ZnO Films with Nanoflake and Nanorod Morphologies and Their Photocatalytic Activity. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1109279
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109279