Kinetics of photocatalytic removal of 2-amino-5-chloropyridine from water

Titanium dioxide sensitized photocatalytic degradation of a pyridine pesticide analogue, 2-amino-5-chloropyridine, was investigated by monitoring the pyridine moiety degradation, as well as by monitoring the chloride generated in the process. Effect of the initial substrate concentration on the rate...

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Main Authors: Abramović Biljana F., Anderluh Vesna B., Topalov Anđelka S., Gaal Ferenc F.
Format: Article
Language:English
Published: Faculty of Technology, Novi Sad 2004-01-01
Series:Acta Periodica Technologica
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1450-7188/2004/1450-71880435079A.pdf
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author Abramović Biljana F.
Anderluh Vesna B.
Topalov Anđelka S.
Gaal Ferenc F.
author_facet Abramović Biljana F.
Anderluh Vesna B.
Topalov Anđelka S.
Gaal Ferenc F.
author_sort Abramović Biljana F.
collection DOAJ
description Titanium dioxide sensitized photocatalytic degradation of a pyridine pesticide analogue, 2-amino-5-chloropyridine, was investigated by monitoring the pyridine moiety degradation, as well as by monitoring the chloride generated in the process. Effect of the initial substrate concentration on the rate of its degradation is reported. Here we show that the kinetics of both reactions are of the zero-order in the entire investigated concentration range. The Langmuir-Hinshelwood kinetic model successfully described the influence of the initial substrate concentration on the rate of the pyridine moiety degradation. It was found that dechlorination of the substrate takes place by direct photolysis. The differences in the kinetics of pyridine moiety degradation and dechlorination were explained on the basis of the electrostatic potential for the investigated compound.
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spelling doaj.art-097771b2b497413284f2b38f10b749302022-12-22T01:42:40ZengFaculty of Technology, Novi SadActa Periodica Technologica1450-71882004-01-01200435798610.2298/APT0435079AKinetics of photocatalytic removal of 2-amino-5-chloropyridine from waterAbramović Biljana F.Anderluh Vesna B.Topalov Anđelka S.Gaal Ferenc F.Titanium dioxide sensitized photocatalytic degradation of a pyridine pesticide analogue, 2-amino-5-chloropyridine, was investigated by monitoring the pyridine moiety degradation, as well as by monitoring the chloride generated in the process. Effect of the initial substrate concentration on the rate of its degradation is reported. Here we show that the kinetics of both reactions are of the zero-order in the entire investigated concentration range. The Langmuir-Hinshelwood kinetic model successfully described the influence of the initial substrate concentration on the rate of the pyridine moiety degradation. It was found that dechlorination of the substrate takes place by direct photolysis. The differences in the kinetics of pyridine moiety degradation and dechlorination were explained on the basis of the electrostatic potential for the investigated compound.http://www.doiserbia.nb.rs/img/doi/1450-7188/2004/1450-71880435079A.pdfPhotocatalytic degradationwater treatmentTiO22-amino-5-chloropyridine
spellingShingle Abramović Biljana F.
Anderluh Vesna B.
Topalov Anđelka S.
Gaal Ferenc F.
Kinetics of photocatalytic removal of 2-amino-5-chloropyridine from water
Acta Periodica Technologica
Photocatalytic degradation
water treatment
TiO2
2-amino-5-chloropyridine
title Kinetics of photocatalytic removal of 2-amino-5-chloropyridine from water
title_full Kinetics of photocatalytic removal of 2-amino-5-chloropyridine from water
title_fullStr Kinetics of photocatalytic removal of 2-amino-5-chloropyridine from water
title_full_unstemmed Kinetics of photocatalytic removal of 2-amino-5-chloropyridine from water
title_short Kinetics of photocatalytic removal of 2-amino-5-chloropyridine from water
title_sort kinetics of photocatalytic removal of 2 amino 5 chloropyridine from water
topic Photocatalytic degradation
water treatment
TiO2
2-amino-5-chloropyridine
url http://www.doiserbia.nb.rs/img/doi/1450-7188/2004/1450-71880435079A.pdf
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