A dual-emission nano-rod MOF equipped with carbon dots for visual detection of doxycycline and sensitive sensing of MnO4-

被引：92

作者：

Fu, Xin ^{[1
]}

Lv, Rui ^{[1
]}

Su, Jian ^{[1
]}

Li, Hui ^{[1
]}

Yang, Boyi ^{[1
]}

Gu, Wen ^{[1
]}

Liu, Xin ^{[1
]}

机构：

[1] Nankai Univ, Coll Chem, Collaborat Innovat Ctr Chem Sci & Engn, Tianjin Key Lab Met & Mol Based Mat Chem,Key Lab, Tianjin 300071, Peoples R China

来源：

RSC ADVANCES | 2018年 / 8卷 / 09期

基金：

中国国家自然科学基金;

关键词：

METAL-ORGANIC FRAMEWORK; FLOW-INJECTION ANALYSIS; FLUORESCENT-PROBE; SMALL MOLECULES; QUANTUM DOTS; SPECTROFLUOROMETRIC DETERMINATION; AMPEROMETRIC DETECTION; LIQUID-CHROMATOGRAPHY; SENSOR; LUMINESCENT;

D O I：

10.1039/c7ra12252g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Herein, ethanediamine-modified carbon dots (CDs) were encapsulated into luminescent MOF(Eu), which was designed for a dual-emission hybrid material (CDs@MOF(Eu)) with diverse fluorescence applications. This material exhibited high selectivity and sensitivity towards doxycycline. With an increasing concentration of doxycycline, the blue light emission of CDs could be quenched, whereas the red light emission of MOF(Eu) was enhanced. In view of this result, more convenient "test paper" was used first as a new tool for doxycycline detection, the colour of which turned from blue-purple to red as observed by the naked eyes under 365 nm UV-irradiation. This hybrid material also was a probe for sensing MnO4- with a low limit of detection and good anti-interference performance. We propose that CDs can improve detection sensitivity compared with the original MOF(Eu). The possible sensing mechanism was discussed in detail. Importantly, the feasibility of this composite for sensing doxycycline in a simulated biological system and sensing MnO4- in tap water was investigated.

引用

页码：4766 / 4772

页数：7

共 43 条

[1] Highly sensitive and selective ratiometric fluorescent metal-organic framework sensor to nitroaniline in presence of nitroaromatic compounds and VOCs [J].