Photodegradation of sulfamethazine, sulfamethoxypiridazine, amitriptyline, and clomipramine drugs in aqueous media
作者:Rania Nassar、Aurélien Trivella、Samia Mokh、Mohamad Al-Iskandarani、Hélène Budzinski、Patrick Mazellier
DOI:10.1016/j.jphotochem.2016.12.008
日期:2017.3
comparison to purified water. This acceleration is, at least partially, due to photosensitized reactions which can occur in river water. The photodegradation of CMP was particularly fast. In addition, no degradation was observed for AMT in purified water while photosensitized reaction occurs. Under ultra-violet (254 nm) irradiation in purified water, the four drugs were degraded. Calculated quantum yields
研究了两种抗菌磺胺类药物磺胺二甲嘧啶(SMT)和磺胺甲氧基哒嗪(SMP)以及两种三环抗抑郁药阿米替林(AMT)和氯米帕明(CMP)的光化学转化。在人造阳光照射下在河水中进行的实验表明,与纯净水相比,SMT,SMP和CMP的降解加速了1.6-7.7倍。这种加速至少部分是由于在河水中可能发生的光敏反应。CMP的光降解特别快。另外,当发生光敏反应时,在纯水中没有观察到AMT降解。在纯净水中在紫外线(254 nm)照射下,四种药物被降解。计算的光降解量子产率为4.3×10-3,5.1×10 -3,7.6×10 -3,和65.0×10 -3分别为SMT,SMP,AMT,和CMP。UV与过氧化氢(UV / H 2 O 2)结合用作水污染的高级氧化工艺。与羟基自由基反应的计算出的二阶速率常数分别为5.0×10 9,5.0×10 9,8.0×10 9和9.5×10 9 大号摩尔-1 小号-1为SMT,SM