高等学校化学学报2011，Vol.32Issue(5)：1118-1122,5.
核黄素光敏化氧化二苯并噻吩的研究
Study on Photosensitized Oxidative Desuifurization of Dibenzothiophene by Riboflavin
摘要
Abstract
Photosensitized oxidative desulfurization of dibenzothiophene (DBT) in n-octane/water extraction system was studied with riboflavin as photosensitizer and O2 in air as oxidant. A 15 W UV lamp was used as the light source for irradiation and air was introduced by a gas pump for O2 supplying. The result showed that DBT was photooxidized successfully. The optimal reaction conditions are riboflavin concentration at 20 mg/L and the air flow at 80-100 mL/min. Under optimal conditions, the removal rario of DBT is up to 60％ after 2 h reaction. Riboflavin sensitized DBT by 1O2 mechanism, the kinetics of photosensitized oxidation of DBT is first-order reaction. Photooxidized products of DBT are DBT 5-oxide, DBT 5,5-dioxide and SO（42）- by mass spectrum.关键词
核黄素/二苯并噻吩/光氧化/脱硫Key words
Riboflavin/ Dibenzothiophene( DBT)/ Photooxidation/ Desulfurization分类
化学化工引用本文复制引用
张娟,赵地顺,杨洁,杨立彦..核黄素光敏化氧化二苯并噻吩的研究[J].高等学校化学学报,2011,32(5):1118-1122,5.基金项目
国家自然科学基金(批准号:20276015)和河北省自然科学基金(批准号:203364)资助. （批准号:20276015）
