摘要
研究了以TiO2 半导体为催化剂 ,有机物分子结构如芳烃取代度、环效应和卤代度对光催化氧化降解的影响。结果表明 ,对芳烃类衍生物 ,单取代基较双取代基降解容易 ,能形成贯穿共轭体系的难降解。环效应、卤代度对光催化降解有较大影响。芳烃、环烷烃、烷烃逐次减弱 ,卤代度越高 ,降解越困难 。
The effect of the organic molecule constitution on photocatalytic oxidation degradation by using TiO 2 semiconductor as a catalyst was studied such as the degree of arylhydrocarbon substitution, the circular effect and the degree of halogenation.The results showed that monosubstituent was degradated easier than double substituent such as the derivant of arylhydrocarbon, but what can constitute transfixion conjugated system was not degradated easily. The circular effect, the degree of halogenation can affect greatly photocatalytic oxidation degradation and the speed of degradation become weaker by the order of arylhdrocarbon, naphthene and paraffin.The higher the degree of halogenation, the more difficult the degradation, if it is halogenated completely than almost does not degradate.
出处
《环境工程》
CAS
CSCD
北大核心
2000年第4期55-57,共3页
Environmental Engineering
