Changes in the Mechanism of the Fenton Reaction

Mordechai L. Kremer

doi:10.3390/reactions6010006

Changes in the Mechanism of the Fenton Reaction

Mordechai L. Kremer^*

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The kinetics of modified versions of the model of the Fenton reaction have been investigated. In these versions, radicals are produced by splitting FeO²⁺ (dissociation product of Fe²⁺ ozonide Fe²⁺O₃) into Fe³⁺ and OH^. The analysis shows that the revised models have the same shortcomings as the corresponding models of Haber and Weiss and of Barb et al. A nonradical model, based on an intact FeO²⁺ as an intermediate, accounted satisfactorily for the kinetics of the reaction under the same conditions. The amphoteric nature of FeO²⁺ to form FeOH³⁺ and HOFeO⁺ in reactions with H⁺ and OH⁻, respectively, extends its activity to a wide range of pH values.

Original language	English
Article number	6
Journal	Reactions
Volume	6
Issue number	1
DOIs	https://doi.org/10.3390/reactions6010006
State	Published - Mar 2025

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Publisher Copyright:
© 2025 by the author.

Keywords

Fe
FeO
Fenton reaction
HO
OH
free radicals

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10.3390/reactions6010006

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abstract = "The kinetics of modified versions of the model of the Fenton reaction have been investigated. In these versions, radicals are produced by splitting FeO2+ (dissociation product of Fe2+ ozonide Fe2+O3) into Fe3+ and OH. The analysis shows that the revised models have the same shortcomings as the corresponding models of Haber and Weiss and of Barb et al. A nonradical model, based on an intact FeO2+ as an intermediate, accounted satisfactorily for the kinetics of the reaction under the same conditions. The amphoteric nature of FeO2+ to form FeOH3+ and HOFeO+ in reactions with H+ and OH−, respectively, extends its activity to a wide range of pH values.",

keywords = "Fe, FeO, Fenton reaction, HO, OH, free radicals",

author = "Kremer, \{Mordechai L.\}",

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N2 - The kinetics of modified versions of the model of the Fenton reaction have been investigated. In these versions, radicals are produced by splitting FeO2+ (dissociation product of Fe2+ ozonide Fe2+O3) into Fe3+ and OH. The analysis shows that the revised models have the same shortcomings as the corresponding models of Haber and Weiss and of Barb et al. A nonradical model, based on an intact FeO2+ as an intermediate, accounted satisfactorily for the kinetics of the reaction under the same conditions. The amphoteric nature of FeO2+ to form FeOH3+ and HOFeO+ in reactions with H+ and OH−, respectively, extends its activity to a wide range of pH values.

AB - The kinetics of modified versions of the model of the Fenton reaction have been investigated. In these versions, radicals are produced by splitting FeO2+ (dissociation product of Fe2+ ozonide Fe2+O3) into Fe3+ and OH. The analysis shows that the revised models have the same shortcomings as the corresponding models of Haber and Weiss and of Barb et al. A nonradical model, based on an intact FeO2+ as an intermediate, accounted satisfactorily for the kinetics of the reaction under the same conditions. The amphoteric nature of FeO2+ to form FeOH3+ and HOFeO+ in reactions with H+ and OH−, respectively, extends its activity to a wide range of pH values.

KW - Fe

KW - FeO

KW - Fenton reaction

KW - HO

KW - OH

KW - free radicals

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SN - 2624-781X

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ER -

Changes in the Mechanism of the Fenton Reaction

Abstract

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Keywords

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