Journal
CATALYSIS TODAY
Volume 161, Issue 1, Pages 255-259Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2010.11.025
Keywords
Photo-Fenton oxidation; Heterogeneous process; Perovskites; Monolith
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In this work photo-Fenton oxidation of acetic acid, was carried out on perovskites based structured catalysts, in the presence or in the absence of low amounts of Pt. Homogeneous photo-Fenton reaction by ferrioxalate complex has been also performed. The comparison of homogeneous and heterogeneous photo-Fenton oxidation indicates that the use of a heterogeneous structured catalyst greatly improves the total organic carbon (TOC) removal and leads to a more effective use of H2O2. The rate of TOC removal during the runtime decreased because of the occurring side H2O2 decomposition to O-2 that subtracts the oxidant to the photo-Fenton reaction. Moreover it allows enlarging the pH range of operation without the formation of sludge or significant metal leaching. LaFeO3 and Pt/LaMnO3 resulted the best catalysts for this process in terms of reaction rate. (C) 2010 Elsevier B.V. All rights reserved.
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