期刊
CHEMISTRYSELECT
卷 4, 期 48, 页码 14175-14183出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201903943
关键词
Amphetamine; Degradation Pathway; Mineralization; Photocatalytic Degradation; TiO2; RGO
资金
- Ferdowsi University of Mashhad [2/47110]
Illicit drugs have attracted much extensive scientific interest as a class of environmental contaminants due to their frequent occurrence, hard degradability, and potential risk to aquatic life and human. In this work, TiO2/reduced graphene oxide (RGO) nanocomposites were used to degrade amphetamine under solar light. Among the prepared photocatalysts, nanocomposite with 30 mg RGO (TiO2/RGO30) possessed the best photocatalytic activity in the photodegradation of hard-degradable amphetamine under solar light irradiation. The mineralization efficiency of 91% were achieved after 180 min solar light irradiation. The enhanced photocatalytic degradation of TiO2/RGO30 nanocomposite could be attributed to the increased optical absorption, effective separation, and migration of photogenerated charge carriers as the results of introducing RGO in the nanostructure. Several intermediates were identified during the degradation process using liquid chromatography tandem mass spectrometry (HPLC/MS-MS) technique. Based on the identified intermediates, the repeated hydroxylation of the amphetamine and its fragmentation are proposed for the degradation pathway.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据