Photocatalytic oxidation of gaseous chlorinated organics over titanium dioxide
Photocatalytic oxidation of gaseous chlorinated organics over titanium dioxide
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DOI：
10.1016/s0045-6535(99)00558-5
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发表时间：
2000-10-01
期刊：
影响因子：
8.8
通讯作者：
Kudielka, G
中科院分区：
文献类型：
--
作者：
Hager, S;Bauer, R;Kudielka, G
采用自行设计的光催化反应器，研究了气相中高浓度挥发性氯代有机物的光催化氧化。研究了光照强度、初始水蒸气浓度、温度、入口污染物浓度和流速对破坏效率的影响。钛催化剂的性能受到空气流中水的存在的强烈影响。实验在室温、低初始污染物浓度、低流速和高光强度下进行得最成功。三氯乙烯（TCE）和四氯乙烯（PCE）的光催化降解过程中检测到了几种副产物。没有观察到催化剂失活。(C)2000爱思唯尔科技有限公司版权所有。
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.