Photocatalytic oxidation of gaseous chlorinated organics over titanium dioxide

被引：108

作者：

Hager, S ^{[1
]}

Bauer, R ^{[1
]}

Kudielka, G ^{[1
]}

机构：

[1] Vienna Univ Technol, Inst Phys Chem, A-1210 Vienna, Austria

来源：

CHEMOSPHERE | 2000年 / 41卷 / 08期

关键词：

photocatalysis; titanium dioxide; trichloroethylene; tetrachloroethylene;

D O I：

10.1016/S0045-6535(99)00558-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The photocatalytic oxidation of high levels of volatile chlorinated organic compounds in gas phase has been studied using a specially designed photoreactor. The influence of light intensity, initial water vapour concentration, temperature, inlet contaminant concentration and flow rate on destruction efficiency has been investigated. The performance of the titanium catalyst was strongly affected by the presence of water in the air stream. Experiments have been most successfully conducted at room temperature, low initial contaminant concentrations, low flow rates and high light intensities. Several by-products have been detected performing photocatalytic degradation of trichloroethylene (TCE) and tetrachloroethylene (PCE). No catalyst deactivation was observed. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1219 / 1225

页数：7

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