Improved Fe<sub>2</sub>O<sub>3</sub>/Al<sub>2</sub>O<sub>3</sub> Systems for the Oxidation of a Model Organic Pollutant Using H<sub>2</sub>O<sub>2</sub> as Oxidant

ISSN: 2211-5455 (Online)
ISSN: 2211-5447 (Print)


Volume 3, 3 Issues, 2014


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Current Catalysis

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Editor-in-Chief:
Shaobin Wang
Curtin University
Perth, WA 6845 U1987
Australia


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Improved Fe2O3/Al2O3 Systems for the Oxidation of a Model Organic Pollutant Using H2O2 as Oxidant

Author(s): Carla di Luca, Fernando Ivorra, Paola Massa, Rosa Fenoglio and Francisco Medina Cabello

Affiliation: INTEMA- Fac. de Ingeniería, CONICET/Universidad Nac. de Mar del Plata, J.B. Justo 4302 (7600) Mar del Plata, Argentina.

Abstract

Different Fe2O3/Al2O3 catalysts (4 wt% Fe) were prepared and characterized by N2 physisorption, SEM-EDX, TGA and XRD. The systems were tested for the oxidation of high concentration phenol solutions (5 g/L) in a batch reactor at 50 °C, using H2O2 as oxidant. In order to enhance the catalyst stability two strategies were combined: an elevated temperature of calcination (900 °C) and pre-treatments with different organic acids (acetic, oxalic acid). The stability of the catalyst was improved significantly (leaching levels were reduced by up to 70%), with a good performance over the global oxidation process: mineralization levels of ca. 50% with oxidant consumption efficiencies of around 75%.




Keywords: CWPO, H2O2, iron, Al2O3, phenol, lixiviation.

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Article Details

Volume: 3
Issue Number: 2
First Page: 161
Last Page: 165
Page Count: 5
DOI: 10.2174/2211544702666131224002504
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