The photochemical behavior of hydrogen peroxide in near UV-irradiated aqueous TiO2 suspensions

被引：47

作者：

Ilisz, I ^{[1
]}

Foglein, K ^{[1
]}

Dombi, A ^{[1
]}

机构：

[1] Attila Jozsef Univ, Dept Inorgan & Analyt Chem, H-6701 Szeged, Hungary

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1998年 / 135卷 / 01期

基金：

匈牙利科学研究基金会;

关键词：

titanium dioxide; hydrogen peroxide; photodecomposition; kinetics;

D O I：

10.1016/S1381-1169(97)00296-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：55 / 61

页数：7

共 31 条

[1] SURFACE PHOTOCHEMISTRY - CDS PHOTOINDUCED CIS-TRANS ISOMERIZATION OF OLEFINS
ALEKABI, H
DEMAYO, P
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1985, 89 (26) : 5815 - 5821
[2] PHOTOCATALYTIC DEGRADATION OF PHENOL IN AQUEOUS TITANIUM-DIOXIDE DISPERSIONS
AUGUGLIARO, V
PALMISANO, L
SCLAFANI, A
MINERO, C
PELIZZETTI, E
[J]. TOXICOLOGICAL AND ENVIRONMENTAL CHEMISTRY, 1988, 16 (02) : 89 - 109
[3] INFLUENCE OF HYDROGEN-PEROXIDE ON THE KINETICS OF PHENOL PHOTODEGRADATION IN AQUEOUS TITANIUM-DIOXIDE DISPERSION
AUGULIARO, V
DAVI, E
PALMISANO, L
SCHIAVELLO, M
SCLAFANI, A
[J]. APPLIED CATALYSIS, 1990, 65 (01): : 101 - 116
[4] LABORATORY-SCALE PHOTODEGRADATION OF PHENOL IN AQUEOUS-SOLUTION BY PHOTOCATALYTIC MEMBRANES IMMOBILIZING TITANIUM-DIOXIDE
BARNI, B
CAVICCHIOLI, A
RIVA, E
ZANONI, L
BIGNOLI, F
BELLOBONO, IR
GIANTURCO, F
DEGIORGI, A
MUNTAU, H
MONTANARELLA, L
FACCHETTI, S
CASTELLANO, L
[J]. CHEMOSPHERE, 1995, 30 (10) : 1847 - 1860
[5] EGERTON TA, 1979, J OIL COLOUR CHEM AS, V62, P386
[6] PHOTOADSORPTION AND PHOTODESORPTION OF OXYGEN ON TITANIUM DIOXIDE
FUKUZAWA, S
SANCIER, KM
KWAN, T
[J]. JOURNAL OF CATALYSIS, 1968, 11 (04) : 364 - &
[7] PHOTO-ADSORPTION AND PHOTO-DESORPTION OF OXYGEN ON HIGHLY HYDROXYLATED TIO2 SURFACES .2. STUDY OF RADICAL INTERMEDIATES BY ELECTRON-PARAMAGNETIC RESONANCE
GONZALEZELIPE, AR
MUNUERA, G
SORIA, J
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1979, 75 : 748 - 761
[8] TiO2-assisted degradation of environmentally relevant organic compounds in wastewater using a novel fluidized bed photoreactor
Haarstrick, A
Kut, OM
Heinzle, E
[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1996, 30 (03) : 817 - 824
[9] PHOTOGENERATION OF HYDROGEN-PEROXIDE IN AQUEOUS TIO2 DISPERSIONS
HARBOUR, JR
TROMP, J
HAIR, ML
[J]. CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1985, 63 (01): : 204 - 208
[10] A NEW SENSITIVE CHEMICAL ACTINOMETER .2. POTASSIUM FERRIOXALATE AS A STANDARD CHEMICAL ACTINOMETER
HATCHARD, CG
PARKER, CA
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1956, 235 (1203): : 518 - 536

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