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Photocatalytic Degradation of a Water Soluble Herbicide by Pure and Noble Metal Deposited TiO2 Nanocrystalline Films
Joint Authors
Lianos, Panagiotis
Pelentridou, Katerina
Karasali, Helen
Stathatos, Elias
Dionysiou, Dionysios D.
Source
International Journal of Photoenergy
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-09-18
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
We present the photocatalytic degradation of a water soluble sulfonylurea herbicide: azimsulfuron in the presence of titania nanocrystalline films.
Efficient photodegradation of herbicide was achieved by using low-intensity black light tubes emitting in the Near-UV.
The degradation of the herbicide follows first-order kinetics according to the Langmuir-Hinshelwood model.
Intermediate products were identified by the LC-MS-MS technique during photocatalytic degradation.
In order to increase photodegradation rate of the herbicide, we examined the effect of titania modification by depositing noble metals at various quantities and valence states.
The presence of platinum at neutral valence state and optimum concentration induced higher photodegradation rates while silver-modified titania exhibited similar photocatalytic rates with those obtained with pure nanocrystalline TiO2 films.
Finally, the effect of initial pH value was also examined.
Acidic or alkaline media were unfavorable for azimsulfuron photodegradation.
American Psychological Association (APA)
Pelentridou, Katerina& Stathatos, Elias& Karasali, Helen& Dionysiou, Dionysios D.& Lianos, Panagiotis. 2008. Photocatalytic Degradation of a Water Soluble Herbicide by Pure and Noble Metal Deposited TiO2 Nanocrystalline Films. International Journal of Photoenergy،Vol. 2008, no. 2008, pp.1-7.
https://search.emarefa.net/detail/BIM-513034
Modern Language Association (MLA)
Pelentridou, Katerina…[et al.]. Photocatalytic Degradation of a Water Soluble Herbicide by Pure and Noble Metal Deposited TiO2 Nanocrystalline Films. International Journal of Photoenergy No. 2008 (2008), pp.1-7.
https://search.emarefa.net/detail/BIM-513034
American Medical Association (AMA)
Pelentridou, Katerina& Stathatos, Elias& Karasali, Helen& Dionysiou, Dionysios D.& Lianos, Panagiotis. Photocatalytic Degradation of a Water Soluble Herbicide by Pure and Noble Metal Deposited TiO2 Nanocrystalline Films. International Journal of Photoenergy. 2008. Vol. 2008, no. 2008, pp.1-7.
https://search.emarefa.net/detail/BIM-513034
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-513034