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Main Title Hydroxyl Radical Formation in Aqueous Reactions (pH 3-8) of Iron(II) with Hydrogen Peroxide: The Photo-Fenton Reaction.
Author Zepp, R. G. ; Faust, B. C. ; Holgne., J. ;
CORP Author Environmental Research Lab., Athens, GA. ;Eidgenoessische Anstalt fuer Wasserversorgung, Abwasserreinigung und Gewaesserschultz, Duebendorf (Switzerland).
Publisher c1992
Year Published 1992
Report Number EPA/600/J-92/090;
Stock Number PB92-153824
Additional Subjects Hydroxyl radicals ; Hydrogen peroxide ; Photochemical reactions ; Reaction kinetics ; Oxidation ; Water pollution ; Reprints ; Photo-Fenton reactions ; Pollutant fate
Library Call Number Additional Info Location Last
NTIS  PB92-153824 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
Kinetics studies of the indirect photooxidation of trace hydroxyl radical (OH) probes in aqueous solutions were used to evaluate the nature and formation efficiency of the transient oxidants that are generated when hydrogen peroxide reacts with Fe(II) that is produced from photoreduction of Fe(III) at wavelength 436 nm. Results of studies of these 'photo-Fenton reactions' under various test conditions are in good agreement with the hypothesis that Fe(sup 2+) and its oxalate, citrate, and phosphate complexes react with H2O2 efficiently to produce OH in water at pH values ranging from 3 to 8. Such reactions involving Fe(II) and H2O2 provide a generally important pathway for oxidations in the environment and possibly for the treatment of contaminated waters. (Copyright (c) 1992 by the American Chemical Society.)