Photocatalytic degradation of oxalic acid over TiO2 power

被引：55
|
作者：
Kosanic, MM [1 ]
机构：
[1] Univ Novi Sad, Fac Sci, Inst Chem, YU-21000 Novi Sad, Yugoslavia
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1998年 / 119卷 / 02期
关键词：
photocatalysis; TiO2; catalyst; oxalic acid; degradation mechanism;
D O I：
10.1016/S1010-6030(98)00407-9
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 photocatalytic degradation of oxalic acid in aqueous suspensions of TiO2 was investigated by following the formation of CO2. Based on the data obtained the reaction mechanism was proposed. The oxidation of oxalic acid follows first-order kinetics in the studied range (0.3-4.0 mu mol H2C2O4) Initial rate of disappearance fits a Langmuir-Hinshelwood kinetic model. As a result, reaction rate constant and adsorption equilibrium constant were found to be 3.20 mu mol min(-1) and 0.22 mu mol(-1), respectively. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：119 / 122
页数：4
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