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

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

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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 redken shades eq 07m driftwood 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 socksmith santa cruz 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.