期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 233, 期 -, 页码 76-82出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.04.052
关键词
Carbon dioxide sensor; Squaraine; Colorimetric and fluorescent; DFT
资金
- National Natural Science Foundation of China [21363014, 21103082]
- Natural Science Foundation of the Jiangxi Province of China [20142BCB23003, 20143ACB21021]
squaraine-based system was developed and demonstrated to fluorescently and colorimetrically sense CO2 gas with high sensitivity in DMSO in the presence of fluoride ion. From results, large hypsochromic shifts were observed both in the absorption spectra (134 nm) and fluorescence spectra (126 nm), and the color change of solution could be clearly observed by the naked eye in response to carbon dioxide gas. Combining H-1 NMR titration tests and theoretical calculations, a plausible sensing mechanism that the deprotonated SQ-NH2 with fluoride ion will rapidly restore on condition that acidic carbon dioxide gas bubbles in DMSO is proposed and further revealed. Moreover, theoretical studies agree with experimental data well. (C) 2016 Elsevier B.V. All rights reserved.
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