A bifunctional sensor based on diarylethene for the colorimetric recognition of Cu2+ and fluorescence detection of Cd2+

被引：22
|
作者：
Qiu, Shouyu [1 ]
Lu, Mengmeng [1 ]
Cui, Shiqiang [1 ]
Wang, Zhen [1 ]
Pu, Shouzhi [1 ]
机构：
[1] Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Organ Chem, Nanchang 330013, Jiangxi, Peoples R China
来源：
RSC ADVANCES | 2019年 / 9卷 / 50期
基金：
中国国家自然科学基金;
关键词：
METAL-ORGANIC FRAMEWORK; PHOTOCHROMIC DIARYLETHENE; SELECTIVE DETECTION; COPPER DEFICIENCY; OXIDATIVE STRESS; AQUEOUS-SOLUTION; CADMIUM IONS; CHEMOSENSOR; PROBE; CU(II);
D O I：
10.1039/c9ra04965g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A novel bifunctional sensor based on diarylethene with a benzyl carbazate unit was synthesized successfully. It not only served as a colorimetric sensor for the recognition of Cu2+ by showing changes in absorption spectra and solution color, but also acted as a fluorescent sensor for the detection of Cd2+ through obvious emission intensity enhancement and fluorescence color change. The sensor exhibited excellent selectivity and sensitivity towards Cu2+ and Cd2+, and the limits of detection for Cu2+ and Cd2+ were 8.36 x 10(-8) mol L-1 and 1.71 x 10(-7) mol L-1, respectively, which were much lower than those reported by the WHO and EPA in drinking water. Furthermore, its application in practical samples demonstrated that the sensor can be effectively applied for the detection of Cu2+ and Cd2+ in practical water samples.
引用
收藏
页码：29141 / 29148
页数：8
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