A reusable thioether-rich crown-based fluorescent sensor for the detection and removal of mercuric ions
A reusable thioether-rich crown-based fluorescent sensor for the detection and removal of mercuric ions
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一种可重复使用的富含硫醚的冠基荧光传感器，用于检测和去除汞离子
DOI：
10.1016/j.jcis.2016.06.021
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发表时间：
2016
影响因子：
9.9
通讯作者：
Weiping Zhu
中科院分区：
文献类型：
--
作者：
Yao Tang;Yu Liu;Yiqiao Qin;Yufang Xu;Xuhong Qian;Weiping Zhu
以富硫醚冠醚受体为基础，制备了一种基于萘酰亚胺的双功能荧光传感器（FS-G），该传感器可同时检测和分离水中的痕量Hg 2+，在水溶液中对Hg 2+表现出良好的选择性，加入Hg 2+后，荧光发射强度增加了5倍。荧光增强与汞离子浓度呈良好的线性关系，检测下限为33.4ppb。此外，FS-G的吸附容量为7.4 mg g-1。当用二巯基琥珀酸处理时，FS-G可以容易地再生。这些结果表明FS-G在水中痕量Hg 2+的检测和去除方面具有潜在的应用价值。
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-Gexhibited excellent selectivity toward Hg2+in aqueous environment and showed 5-fold increase in fluorescence emission intensity upon the addition of Hg2+. 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 ofFS-Gis 7.4 mg g−1.FS-Gcan be easily regenerated when treated with dimercaptosuccinic acid. These results indicate thatFS-Ghas potential applications for detection and removal of trace Hg2+in water.