2009
DOI: 10.1007/s11244-009-9264-7
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LaFeO3 Perovskite as New and Performant Catalyst for the Wet Peroxide Oxidation of Organic Pollutants in Ambient Conditions

Abstract: The purpose of the present study was to evaluate the ability of LaFeO 3 perovskites prepared using the ''self-combustion method'' to behave as efficient and stable catalysts in phenol oxidation using H 2 O 2 in ambient conditions. Depending on the synthesis conditions, strong differences in the structural, textural and reducibility characteristics of the perovskites, as well as in phenol conversion and TOC abatement level were observed. High TOC abatement (76%) and very low iron leaching (0.27 wt%) were obtain… Show more

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Cited by 46 publications
(23 citation statements)
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“…There are only two publications devoted to the studies of catalytic properties of perovskite-like oxides in the CWPO. Perovskites LaTi 1−x Cu x O 3 and LaFeO 3 were highly active to oxidation of phenol with hydrogen peroxide [29,30]. However, a very low stability to the copper leaching was characteristic of LaTi 1−x Cu x O 3 (more than 20% of the initial Cu content was leached to the solution), while LaFeO 3 was much more stable (less than 0.27% of the initial Fe content was leached to the solution).…”
Section: Introductionmentioning
confidence: 99%
“…There are only two publications devoted to the studies of catalytic properties of perovskite-like oxides in the CWPO. Perovskites LaTi 1−x Cu x O 3 and LaFeO 3 were highly active to oxidation of phenol with hydrogen peroxide [29,30]. However, a very low stability to the copper leaching was characteristic of LaTi 1−x Cu x O 3 (more than 20% of the initial Cu content was leached to the solution), while LaFeO 3 was much more stable (less than 0.27% of the initial Fe content was leached to the solution).…”
Section: Introductionmentioning
confidence: 99%
“…However, since additional separation steps are needed to remove iron from the treated waters, it would be preferable to produce the hydroxyl radicals using stable iron containing heterogeneous catalysts. Many different supports, such as zeolites, pillared clays and activated carbons have been used for that purpose [6][7][8][9][10][11][12]. Nevertheless, many of the developed catalysts frequently show stability problems under typical process operating conditions, which in most cases are due to leaching of iron.…”
Section: Introductionmentioning
confidence: 99%
“…hydrocarbons, chlorinated Volatile Organic Compounds (VOCs) or in the reaction between NO and CO [3,4,5,6]. They are also promising candidates as catalysts in heterogeneous Fenton-like reactions to generate ⋅OH radicals from H 2 O 2 [7,8]. Due to the small band gap LaFeO 3 can be used in photocatalytic applications [9,10,11].…”
Section: Introductionmentioning
confidence: 99%