文献类型：期刊文献

英文题名：A reusable thioether-rich crown-based fluorescent sensor for the detection and removal of mercuric ions

作者：Tang, Yao[1];Liu, Yu[1];Qin, Yiqiao[1];Xu, Yufang[1];Qian, Xuhong[1];Zhu, Weiping[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Chem Biol, Sch Pharm, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：479

起止页码：7

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;EI(收录号：20162602537352);WOS:【SCI-EXPANDED(收录号:WOS:000380384700002)】；

基金：We thank the financial support from the National High Technology Research and Development Program of China (2012AA061601), National Natural Science Foundation of China (21476077, 21236002), and Shanghai Pujiang Program. W. Zhu is grateful for the support from Chinese Scholarship Council.

语种：英文

外文关键词：Fluorescent sensor; Mercuric ions; Detection; Removal; Reusable

摘要：Based on the thioether-rich crown receptor, we describe a naphthalimide based bifunctional fluorescent sensor (FS-G) for simultaneous detection and separation of trace Hg2+ in water. FS-G exhibited excellent selectivity toward Hg2+ in aqueous environment and showed 5-fold increase in fluorescence emission intensity upon the addition of He2+. A good linearity was observed between the fluorescence enhancement and the dose of Hg2+ with a lower detection limit of 33.4 ppb. Additionally, adsorption capacity of FS-G is 7.4 mg g(-1). FS-G can be easily regenerated when treated with dimercaptosuccinic acid. These results indicate that FS-G has potential applications for detection and removal of trace Hg2+ in water. (C) 2016 Elsevier Inc. All rights reserved.