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Photodegradation of imazethapyr herbicide by using slurry and supported TiO2: Efficiency comparison.
Arabian journal of chemistry 8, 181-185 (2015)
Kinetic photodegradation of imazethapyr, a herbicide from imidazolinone class of pesticides, has been investigated in aqueous solution using slurry titanium dioxide (TiO2) and supported on Ahlstrom paper (flexible photocatalytic support). Two types of TiO2 e.g., Millennium PC500 (100% anatase) and Degussa P25 (80% anatase, 20% rutile) were used. Experiments were investigated to evaluate the effect of the adsorption, initial concentrations of the pesticide as well as catalyst doses on the photocatalytic degradation of imazethapyr. Kinetic parameters were experimentally determined and a half-order kinetic was observed. Regarding Langmuir-Hinshelwood model, the kinetic of the imazethapyr degradation was more efficient at higher pesticide concentrations and catalyst doses. Accordingly, Degussa P25 shows higher photocatalytic activity in regard to PC500 Millennium.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Photodegradation
Imazethapyr
Kinetic
P25 Degussa
PC500 Millennium
ISSN (print) / ISBN
1878-5352
e-ISSN
1878-5352
Journal
Arabian journal of chemistry
Quellenangaben
Volume: 8,
Pages: 181-185
Publisher
Elsevier
Publishing Place
Amsterdam [u.a.]
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Research Unit BioGeoChemistry and Analytics (BGC)