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Heterogeneous Fenton oxidation of paracetamol using iron oxide (nano)particles.

Velichkova, Filipa Aleksandrova and Julcour-Lebigue, Carine and Koumanova, Bogdana and Delmas, Henri Heterogeneous Fenton oxidation of paracetamol using iron oxide (nano)particles. (2013) Journal of Environmental Chemical Engineering, 1 (4). 1214-1222. ISSN 2213-3437

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Official URL: https://doi.org/10.1016/j.jece.2013.09.011


100 mg.L-1 paracetamol aqueous solutions were treated by heterogeneous Fenton oxidation at acidic pH (2.6). Three types of iron oxides – nano- and submicro-structured magnetite, nanostructuredmaghemite – were tested as catalysts for that purpose. For each system, the paracetamol conversion and mineralization yield (Total Organic Carbon removal) were evaluated, as well as the catalyst stability upon recycling. The influence of reaction parameters such as temperature, iron amount, and hydrogen peroxide dosage was also investigated. Paracetamol mineralization was improved by high temperature and low oxidant dosage due to radical scavenging effects. In best conditions (two times the stoichiometric amount of H2O2, a temperature of 60°C, a catalyst concentration of 6 g.L-1), paracetamol was fully degraded after 5 h, but total mineralization was not yet achieved: TOC removal reached about 50% when magnetite powders were used as catalysts. All iron oxides exhibited low iron leaching (<1%) and stable catalytic activity upon first recycling.

Item Type:Article
HAL Id:hal-03521465
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Sofia University St. Kliment Ohridski (BULGARIA)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Working Community of the Pyrenees
Deposited On:01 Oct 2018 13:27

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