Photodegradation of the herbicide azimsulfuron using nanocrystalline titania films as photocatalyst and low intensity Black Light radiation or simulated solar radiation as excitation source

Katerina Pelentridou; Elias Stathatos; Helen Karasali; Panagiotis Lianos

doi:10.1016/j.jhazmat.2008.07.023

Photodegradation of the herbicide azimsulfuron using nanocrystalline titania films as photocatalyst and low intensity Black Light radiation or simulated solar radiation as excitation source

J Hazard Mater. 2009 Apr 30;163(2-3):756-60. doi: 10.1016/j.jhazmat.2008.07.023. Epub 2008 Jul 12.

Authors

Katerina Pelentridou¹, Elias Stathatos, Helen Karasali, Panagiotis Lianos

Affiliation

¹ Engineering Science Department, University of Patras, 26500 Patras, Greece.

PMID: 18703278
DOI: 10.1016/j.jhazmat.2008.07.023

Abstract

Aqueous solutions of the herbicide azimsulfuron have been treated by a photocatalytic process employing titania nanocrystalline films as photocatalyst. Results showed that solutions of this herbicide at maximum possible concentration can be photodegraded in a time of a few hours by using low intensity UVA radiation comparable with that of the UVA of solar noon. Similar results have also been obtained with simulated solar radiation. Thus heterogeneous photocatalysis can be employed for the treatment of waters polluted by this herbicide.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Catalysis
Herbicides / radiation effects
Light
Nanoparticles
Photolysis / drug effects*
Pyrazoles / radiation effects*
Sulfonamides / radiation effects*
Titanium / pharmacology*
Water Pollutants* / radiation effects

Substances

Herbicides
Pyrazoles
Sulfonamides
Water Pollutants
titanium dioxide
Titanium
azimsulfuron