Photocatalytic degradation of an emerging pollutant by TiO 2 -coated glass rings: a kinetic study

This work presents the photocatalytic degradation of the pharmaceutical drug clofibric acid in a fixed-bed reactor filled with TiO -coated glass rings. Experiments were carried out under UV radiation. A kinetic model that takes into account radiation absorption by means of the local surface rate of...

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Bibliographic Details
Published in:Environmental science and pollution research international 2017-03, Vol.24 (7), p.6031
Main Authors: Manassero, Agustina, Satuf, María Lucila, Alfano, Orlando Mario
Format: Article
Language:English
Subjects:
Clofibric Acid - analysis
Clofibric Acid - chemistry
Clofibric Acid - radiation effects
Glass - chemistry
Kinetics
Models, Theoretical
Photolysis
Titanium - chemistry
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - chemistry
Water Pollutants, Chemical - radiation effects
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Summary:This work presents the photocatalytic degradation of the pharmaceutical drug clofibric acid in a fixed-bed reactor filled with TiO -coated glass rings. Experiments were carried out under UV radiation. A kinetic model that takes into account radiation absorption by means of the local surface rate of photon absorption (LSRPA) has been developed. The LSRPA was obtained from the results of a radiation model. The Monte Carlo method was employed to solve the radiation model, where the interaction between photons and TiO -coated rings was considered. Data from experiments carried out with rings with different numbers of catalyst coatings and different irradiation levels were used to estimate the parameters of the kinetic model. A satisfactory agreement was obtained between model simulations and experimental results.
ISSN:1614-7499