The generation of a hydroxyl radical by the decomposition of hydrogen peroxide in the presence of ferrous salt is generally known as the Fenton reaction. It has been found that the hydroxyl radical can be quickly generated at the initial stage of the reaction, which has high oxidation potential...
Fentonreaction.BymonitoringthedevelopmentoftheOxidation-reductionpotentialduringthe oxidationofphenolbyFentonreagent,theinfluenceontheORPchangeofreactionconditions25 wereanalyzed.Moreoverit’sbenefittodevelopingtheoxidationmechanismofFentonreagent andtransformationlawofintermediateduringFentonreaction.TheresultshowedthattheORP...
In excessive quantities, however, iron reacts via the Fenton reaction to overproduce hydroxyl radicals, the most dangerous of free radicals. The Fenton reaction (Eq. 18.5), is the oxidation of divalent iron to its trivalent state by hydrogen peroxide, with the resultant formation of hydroxyl ...
In this work, a new process concept is presented, which uses the transient behaviour of the reaction in two reactors operating under unsteady conditions (... Gunther,Schoneberger,JC,... - 《Computer Aided Chemical Engineering》 被引量: 3发表: 2012年 Effects of Oxidation Reduction Potential and...
Fig. 4.ROS and active site identification. a) EPR spectra using DMPO and TEMP as trapping agents. b) Comparison of reaction rates under different quenching conditions. c) In situ Raman spectra of different oxidatio...
dox potential (ORP) in Fentionπs reaction. When H2O2 is titrated into an Fe 2 + 2bearing solution , ORP increased rapidly with increasing H2O2 at a molar ratio of H2O2/ Fe 2 + ]0 below 0175 . Above the ratio , however , the increasing rate of ORP evidently slowed down. In the ...
reaction(1.2)depend on the metal complex and are typically in the 5–20×103M−1s−1range. Over the years, there has been considerable debate as to whether the product is thehydroxyl radicalor a higheroxidationstate of the metal (such as ferryl [FeO]2+or Cu(III) complexes), with ...
(Fig.5A–C). Thus, our data suggest that either Fe3+import is higher or oxidation of Fe2+to Fe3+is increased in the SI + DMOG co-treated group due to induced Fenton reaction. To test, if Fe3+or Fe2+levels are involved in cell death, we treated ARPE-19 cells with an Fe3+...
Surprisingly the oxidation of MoO43- by H2O2 involves two H2O2 molecules. It is proposed that generally when the reaction of a reducing agent with H2O2, to form a single electron oxidized product and a hydroxyl radical, is endothermic the reaction involves more than one H2O2 molecule.关键词:AQU...
Moreover, Fenton/Fenton-like oxidation is a radical reaction process, in which the redox reaction between multivalent metals and radicals may occur. Therefore, the conversion and recycle of valence state of multivalent metals are crucial in the production of ROS and the degradation of organic ...