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A comparative study of photocatalytic degradation of 3-chloropyridine under UV and solar light by homogeneous (photo-Fenton) and heterogeneous (TiO2) photocatalysis

Paper ID Volume ID Publish Year Pages File Format Full-Text
46291 46436 2012 7 PDF Available
Title
A comparative study of photocatalytic degradation of 3-chloropyridine under UV and solar light by homogeneous (photo-Fenton) and heterogeneous (TiO2) photocatalysis
Abstract

Photocatalytic degradation of 3-chloropyridine in the homogeneous (photo-Fenton) and heterogeneous (TiO2) phase was studied using both UV and sun light. Complete mineralization was achieved in both cases though times required in photo-Fenton process were ca. 5 times shorter under our experimental conditions. Results found at lab scale (solar simulator) were successfully extrapolated to a larger scale (30 L) thus evidencing the validity of the method for treatment of waters polluted with this kind of chemical. Toxicity tests (Vibrio fischeri) showed that some intermediates more toxic than 3-chloropyridine were formed as reaction proceeded.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Photo-Fenton process is ca. 5 times faster than TiO2 photocatalysis. ► Complete mineralization using sun light and results at lab-scale well extrapolated to larger scale. ► Some intermediates more toxic than 3-chloropyridine formed as the reaction proceeds. ► Photo-Fenton process quite sensitive to the presence of phosphate.

Keywords
Photocatalysis; Photo-Fenton; TiO2; Chloropyridines
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A comparative study of photocatalytic degradation of 3-chloropyridine under UV and solar light by homogeneous (photo-Fenton) and heterogeneous (TiO2) photocatalysis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 127, 30 October 2012, Pages 316–322
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us