Fenton Reaction Damaging Effects on Biological Molecules: A Theoretical Study. The human body is introduced to metal ions through ingestion of contaminated foods and water, direct contact or injection. The Fenton reaction produces the hydroxyl radical, which is a ROS that is detrimental to the human body.
What is the difference between Fenton and Fenton-like reaction?
The reaction orders respective to H2O2 concentration in the Fenton reaction were 0.74 and 1.23 for the first and second-stage reactions, respectively, while for the Fenton-like reaction, the order for H2O2 concentration was 0.73, which was also similar to the value in the first stage of Fenton oxidation.
Why does the Fenton reaction occur?
6.08. 3.3 Applications in Environmental Cleanup. The well-known Fenton chemistry is the oxidation process activated by Fe(II) salts in the presence of H2O2 that generates radical species in solution and oxidizes a wide range of organic substrates with high activity but generally poor selectivity.
How does Fenton reaction work?
The Fenton reaction describes the formation of hydroxide (OH−) and hydroxyl radical by a reaction between Iron (II) (Fe2+) and hydrogen peroxide (H2O2) [33], Haber–Weiss reaction is where hydroxyl and hydroxide ions are generated from the reaction of H2O2 and superoxide ion ( O 2 • − ) catalyzed by iron [34].
Which is one of the roles of iron ions in a reaction with Fenton's reagent?
In Fenton's reaction, the ferrous and/or ferric cation decomposes catalytically hydrogen peroxide to generate powerful oxidizing agents, capable of degrading a number of organic and inorganic substances.
How does pH affect Fenton reaction?
The course of the reaction between Fe2+ ions and H2O2 (the Fenton reaction) depends on the pH. At pH < 1, the reaction is restricted to the oxidation of Fe2+ ions by H2O2 while above pH = 1, when an excess of H2O2 is present, part of the H2O2 is decomposed to O2 and H2O.20 Feb 2003
What is Fenton like process?
Heterogeneous Fenton-like processes can be established by replacing Fe2+ in the Fenton reagent with a solid catalyst, while homogeneous Fenton-like processes are due to a combination of other metal ion(s)/metal ion-organic ligand complexes and H2O2 [59].
What is Fenton like catalyst?
Fenton's reagent is a solution of hydrogen peroxide (H2O2) with ferrous iron (typically iron(II) sulfate, FeSO4) as a catalyst that is used to oxidize contaminants or waste waters. Fenton's reagent can be used to destroy organic compounds such as trichloroethylene (TCE) and tetrachloroethylene (perchloroethylene, PCE).Fenton's reagent is a solution of hydrogen peroxide (H2O2) with ferrous iron (typically iron(IIiron(IIIn chemistry, iron(II) refers to the element iron in its +2 oxidation state. In ionic compounds (salts), such an atom may occur as a separate cation (positive ion) denoted by Fe2+.https://en.wikipedia.org › wiki › Iron(II)Iron(II) - Wikipedia) sulfate, FeSO4) as a catalyst that is used to oxidize contaminants or waste waters. Fenton's reagent can be used to destroy organic compounds such as trichloroethylene (TCE) and tetrachloroethylene (perchloroethylene, PCE).
Is the Fenton reaction Bad?
The toxic metal ions can be harmful to the human body and cause diseases like Alzheimer's disease and cancer. The Fenton reaction produces the hydroxyl radical, which is a ROS that is detrimental to the human body.