Journal ArticleDOI
Rates of hydroxyl radical generation and organic compound oxidation in mineral-catalyzed Fenton-like systems.
Wai P Kwan,Bettina M. Voelker +1 more
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It is shown that if VOH and the rate constants of the reactions of *OH with the system's constituents are known, the oxidation rate of a dissolved organic compound can be predicted and that unknown reactants are either interfering with *OH production or consuming *OH in these systems.Abstract:
The iron oxide-catalyzed production of hydroxyl radical (•OH) from hydrogen peroxide (H2O2) has been used to oxidize organic contaminants in soils and groundwater. The goals of this study are to de...read more
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Journal ArticleDOI
Clays and oxide minerals as catalysts and nanocatalysts in Fenton-like reactions — A review
TL;DR: The use of clays and iron-oxide minerals as catalysts of Fenton-like reactions is a promising alternative for the decontamination of soils, groundwaters, sediments, and industrial effluents as discussed by the authors.
Journal ArticleDOI
Fast-growing field of magnetically recyclable nanocatalysts.
Dong Wang,Didier Astruc +1 more
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Preparation of magnetite-based catalysts and their application in heterogeneous Fenton oxidation – A review
TL;DR: In this article, a critical review on the application of magnetite-based catalysts to industrial wastewater decontamination by heterogeneous Fenton oxidation is presented, paying attention to their nature and competitive features in terms of activity and durability.
Journal ArticleDOI
Heterogeneous electro-Fenton and photoelectro-Fenton processes: A critical review of fundamental principles and application for water/wastewater treatment
TL;DR: In this article, the fundamental principles and applications of heterogeneous electrochemical wastewater treatment based on Fenton's chemistry reaction are discussed and the required features of good heterogeneous catalysts are discussed, followed by the mechanisms of catalytic activation of H2O2 to reactive oxygen species (ROS) especially hydroxyl radical ( OH) by heterogeneous catalyst in Hetero-EF system.
Journal ArticleDOI
Review on the application of modified iron oxides as heterogeneous catalysts in Fenton reactions
TL;DR: In this paper, the substitution of iron in an iron oxide with other transition metals as a mean to improve the properties of the iron oxide towards higher performance for contaminant degradation is discussed.
References
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Journal ArticleDOI
Critical Review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals (⋅OH/⋅O− in Aqueous Solution
TL;DR: In this article, the rate constants for over 3500 reaction are tabulated, including reaction with molecules, ions and other radicals derived from inorganic and organic solutes, and the corresponding radical anions, ⋅O− and eaq−, have been critically pulse radiolysis, flash photolysis and other methods.
Journal ArticleDOI
Photometric method for the determination of low concentrations of hydrogen peroxide by the peroxidase catalyzed oxidation of N,N-diethyl-p-phenylenediamine (DPD)
TL;DR: In this paper, the concentration of hydrogen peroxide (H2O2) in distilled water, drinking water and in different types of surface and rain waters can be easily determined by a photometric method in which N,N-diethyl-p-phenylenediamine (DPD) is oxidized by a peroxidase catalyzed reaction.
Journal ArticleDOI
Catalytic Decomposition of Hydrogen Peroxide by Fe(III) in Homogeneous Aqueous Solution: Mechanism and Kinetic Modeling
Joseph De Laat and,Hervé Gallard +1 more
TL;DR: In this paper, a kinetic model for the decomposition of hydrogen peroxide by ferric ion in homogeneous aqueous solution (pH < 3) was described and the reaction was investigated experimentally at 25.0 °C and I = 0.1 M in a completely mixed batch reactor and under a wide range of experimental conditions.
Journal ArticleDOI
Effects of Fulvic Acid on Fe(II) Oxidation by Hydrogen Peroxide
TL;DR: In this article, the role of Fenton's reaction [oxidation of Fe(II) by hydrogen peroxide] in the catalytic cycle was examined, and a number of competing processes were observed in model systems.
Journal ArticleDOI
Hydrogen peroxide use to increase oxidant capacity for in situ bioremediation of contaminated soils and aquifers: A review
TL;DR: In this article, the authors reviewed several reactions pertinent to remediating contaminated groundwaters via hydrogen peroxide (H2O2) addition, including microbial catalase and several inorganic catalysts such as iron oxide species.
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Catalytic Decomposition of Hydrogen Peroxide on Iron Oxide: Kinetics, Mechanism, and Implications
Shu-Sung Lin,Mirat D. Gurol +1 more