期刊
MATERIALS RESEARCH BULLETIN
卷 134, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2020.111119
关键词
Carbon materials; Luminescence; Aniline; Chemo-sensor; Detection limit
资金
- Academy of Scientific Research and Technology (ASRT) [4414]
- Science and Technology Development Fund (STDF) [4926]
- Higher Education Ministry in Egypt
An ultra-small nitrogen-doped carbon nanodots were used as a turn-off fluorescent chemo-sensor for ultrasensitive detection of aniline in aqueous medium, reaching an exceptional low detection limit. The proposed method provided a simple and interference-free approach for aniline detection.
Aniline has been classified as a probable human carcinogen which can cause severe respiratory tract irritation and congestion to humans. Here, we propose using ultra-small (1.8 nm) colloidal nitrogen-doped carbon nanodots (N-CDs), that is green synthesized at a low temperature of only 100 degrees C from ultrasonic-processed watersoluble folic acid, as a novel turn-off fluorescent chemo-sensor for ultrasensitive detection of aniline in aqueous medium. It was found that the Stern-Volmer relation describes very well the fluorescence quenching of N-CDs by aniline and confirms a static quenching mechanism between them. Compared to other techniques, our N-CDs based optical detection method, is the simplest and the most ultrasensitive method for aniline liquid detection, reaching an exceptional low detection limit of 3.57 nM (0.332 ppb). The proposed method was successfully applied for determination of aniline in a tap water sample without significant interferences from the matrix.
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