摘要
本文利用荧光法研究了表面活性剂十二烷基硫酸钠(SDS)和聚氧乙烯月桂醚(Brij35)溶液以及水溶液中蒽(An)的光降解,初步探讨了Brij35溶液中An的光降解机理.结果表明,An在不同表面活性剂胶团中的增溶位点不同,对其光降解的影响显著.实验证实An在Brij35溶液中的光降解是一个由激发三重态发生且无自由基产生的过程,与其在水溶液中的光降解机理一致.
The photodegradation processes of anthracene （An） in aqueous solution with or without the surfactants, such as SDS or Brij35 were studied by fluorimetry. The preliminary photodegradation mechanism of An in Brij35 solution was also investigated. The results showed that the location where An resided in micelles of surfactants remarkably influenced the photodegradation process of dissolved An in surfactant aqueous solutions. The mechanism of An decomposition started by excited triplet state of An but without radicals involved in Brij35 solution. It is quite similar to the photodcgradation mechanism of An in aqueous solution.
出处
《环境化学》
CAS
CSCD
北大核心
2009年第5期687-690,共4页
Environmental Chemistry
基金
国家自然科学基金(No.20577037
20777062)
高等学校博士学科点专项科研基金(200803840015)
关键词
蒽
表面活性剂
光降解
anthracene, surfactant, photodegradation.
