Photocatalytic Effect of Fe(III) on Oxidation of Two-Carbon Substrates Related to Natural Waters

[img]PDF - Authorized users only
Language: English
84Kb
Title:Photocatalytic Effect of Fe(III) on Oxidation of Two-Carbon Substrates Related to Natural Waters
Creators:
Klementová, Šárka
Wagnerová, Dana M.
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 59, 5, pp. 1066-1076

Abstract

<p>The influence of ferric ions on photoinitiated reaction of dioxygen with two carbon organic acids, aldehydes and alcohols related to natural waters was demonstrated. Photocatalytic effect of ferric ions, i.e. photochemical reduction of Fe(III) as the catalyst generating step, has been found to be the common principal of these reactions. The overall quantum yields of the reactions are in the range from 0.3 to 1.2. A mathematical model designed for the mechanism of cyclic generation of catalyst in the singlet substrate oxidation by O<sub>2</sub> was applied to the system glyoxalic acid + Fe(III); a fair agreement between the simulated and experimental kinetic curves was obtained. The experimental rate constant is 4.4 .10<sup>-4</sup> s <sup>-1</sup>.

Title:Photocatalytic Effect of Fe(III) on Oxidation of Two-Carbon Substrates Related to Natural Waters
Creators:
Klementová, Šárka
Wagnerová, Dana M.
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:59
Number:5
Page Range:pp. 1066-1076
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19941066UNSPECIFIED
ID Code:524
Item Type:Article
Deposited On:06 Feb 2009 17:01
Last Modified:06 Feb 2009 16:01

Citation

Klementová, Šárka; Wagnerová, Dana M. (1994) Photocatalytic Effect of Fe(III) on Oxidation of Two-Carbon Substrates Related to Natural Waters. Collection of Czechoslovak Chemical Communications, 59 (5). pp. 1066-1076. ISSN 0010-0765

Repository Staff Only: item control page