Abstract
The kinetic behavior of H2O2 decomposition in near UV-irradiated aqueous TiO2 suspensions was investigated. The effects of the H2O2 concentration, the catalyst loading, the dissolved oxygen concentration, and the light intensity on the initial photodecomposition rate were studied. The observed kinetics were treated by both the Langmuir-Hinshelwood and the Freundlich model; the latter proved more successful for characterization of the system. The H2O2 photodegradation rate was found to be directly proportional to the light intensity and it increased with the catalyst concentration up to a saturation limit. The concentration of dissolved oxygen had no significant effect on the photodecomposition rate.
| Original language | English |
|---|---|
| Pages (from-to) | 55-61 |
| Number of pages | 7 |
| Journal | Journal of Molecular Catalysis A: Chemical |
| Volume | 135 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Sep 29 1998 |
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Keywords
- Hydrogen peroxide
- Kinetics
- Photodecomposition
- Titanium dioxide
ASJC Scopus subject areas
- Catalysis
- Process Chemistry and Technology
Cite this
The photochemical behavior of hydrogen peroxide in near UV-irradiated aqueous TiO2 suspensions. / Ilisz, I.; Föglein, Katalin; Dombi, A.
In: Journal of Molecular Catalysis A: Chemical, Vol. 135, No. 1, 29.09.1998, p. 55-61.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The photochemical behavior of hydrogen peroxide in near UV-irradiated aqueous TiO2 suspensions
AU - Ilisz, I.
AU - Föglein, Katalin
AU - Dombi, A.
PY - 1998/9/29
Y1 - 1998/9/29
N2 - The kinetic behavior of H2O2 decomposition in near UV-irradiated aqueous TiO2 suspensions was investigated. The effects of the H2O2 concentration, the catalyst loading, the dissolved oxygen concentration, and the light intensity on the initial photodecomposition rate were studied. The observed kinetics were treated by both the Langmuir-Hinshelwood and the Freundlich model; the latter proved more successful for characterization of the system. The H2O2 photodegradation rate was found to be directly proportional to the light intensity and it increased with the catalyst concentration up to a saturation limit. The concentration of dissolved oxygen had no significant effect on the photodecomposition rate.
AB - The kinetic behavior of H2O2 decomposition in near UV-irradiated aqueous TiO2 suspensions was investigated. The effects of the H2O2 concentration, the catalyst loading, the dissolved oxygen concentration, and the light intensity on the initial photodecomposition rate were studied. The observed kinetics were treated by both the Langmuir-Hinshelwood and the Freundlich model; the latter proved more successful for characterization of the system. The H2O2 photodegradation rate was found to be directly proportional to the light intensity and it increased with the catalyst concentration up to a saturation limit. The concentration of dissolved oxygen had no significant effect on the photodecomposition rate.
KW - Hydrogen peroxide
KW - Kinetics
KW - Photodecomposition
KW - Titanium dioxide
UR - http://www.scopus.com/inward/record.url?scp=0032578426&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032578426&partnerID=8YFLogxK
U2 - 10.1016/S1381-1169(97)00296-3
DO - 10.1016/S1381-1169(97)00296-3
M3 - Article
AN - SCOPUS:0032578426
VL - 135
SP - 55
EP - 61
JO - Journal of Molecular Catalysis A: Chemical
JF - Journal of Molecular Catalysis A: Chemical
SN - 1381-1169
IS - 1
ER -