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Fluorescent probe material prepared from Ln-MOFs (rare earth metal-organic frameworks) and application of fluorescent probe material

An organic framework, rare earth metal technology, applied in the field of fluorescent probe materials, can solve problems such as no reports yet, and achieve the effects of easy storage, low energy consumption, and simple process

Inactive Publication Date: 2015-06-03
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been reports on the use of Ln-MOFs for the detection of metal ions, but currently they are mainly focused on the fluorescence detection of Cu2+ ions (Liang, Xiao-Qiang et al., Chemical Communications, 2014, 50 , 6513-6516), Hg2+ (Zhu, Yi-Min et al., Journal of Materials Chemistry A, 2013, 1, 11312-11319) and Fe3+( Yan, Bing et al., Journal of Materials Chemistry A, 2014, 2, 13691-13697), the detection of Ba2+ ion has not been reported yet

Method used

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  • Fluorescent probe material prepared from Ln-MOFs (rare earth metal-organic frameworks) and application of fluorescent probe material
  • Fluorescent probe material prepared from Ln-MOFs (rare earth metal-organic frameworks) and application of fluorescent probe material
  • Fluorescent probe material prepared from Ln-MOFs (rare earth metal-organic frameworks) and application of fluorescent probe material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: the preparation of sample 1#

[0040] [Hmim]Cl, Eu(Ac) 3 ·6H 2 O and 2,5-dihydroxyterephthalic acid were mixed in a ratio of 3:1:2, heated to 160 degrees by microwave, taken out after 10 minutes, cooled and washed twice with absolute ethanol and water at room temperature, and dried Corresponding powder samples are available.

Embodiment 2

[0041] Embodiment 2: the preparation of sample 1#

[0042] [Hmim]Cl, Eu(Ac) 3 ·6H 2 O and 2,5-dihydroxyterephthalic acid are mixed according to the ratio of 10:1:2, put into the reaction kettle and heated to 160 degrees in the oven, take it out after 5 days, cool and use absolute ethanol and The corresponding powder sample can be obtained by washing with water three times and drying.

Embodiment 3

[0043] Embodiment 3: the preparation of sample 2#

[0044] [Hmim]Cl, Tb(Ac) 3 ·6H 2 O and 2,5-dihydroxyterephthalic acid are mixed according to the ratio of 1:1:2, put into the reaction kettle and heated to 160 degrees in the oven, take it out after 5 days, cool and use absolute ethanol and Wash twice with water and dry to obtain the corresponding powder sample.

[0045] Structural Characterization of Samples

[0046] The sample was characterized by X-ray single crystal diffraction, and the structure of the sample was analyzed by Shelx 2013. The results show that sample 1#~sample 2# all have the general formula shown in the chemical formula (1), and the following takes sample 1# as a typical representative to describe in detail.

[0047] Wherein, the crystal structure of sample 1# is obtained by x-ray single crystal diffraction, such as figure 1 shown. Sample 1# crystal belongs to Pbcn The space group, whose unit cell parameters are: a = 27.8885(7)?, b = 11.443...

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Abstract

The invention relates to a fluorescent probe material prepared from Ln-MOFs (rare earth metal-organic frameworks) and an application of the fluorescent probe material. The fluorescent probe material can be used for testing barium ions in an aqueous solution qualitatively and quantitatively through changes of fluorescence intensity. The fluorescent probe material can be obtained quickly through 10-minute microwave heating. The preparation process is simple, the purity of an obtained product is high, the stability is good, fluorescence changes can be observed by naked eyes, the selectivity is very good, resistance to interference of other metal ions is high, and the fluorescent probe material is ideal and can be applied to testing of the barium ions.

Description

technical field [0001] The invention belongs to the field of fluorescent detection materials, and in particular relates to a fluorescent probe material prepared from a rare earth metal organic framework compound and an application thereof. Background technique [0002] Barium is the most active element among alkaline earth metals, and it is also a trace element present in the human body. Barium and its compounds can be widely used in medical treatment, ceramic pigments and other industries. However, among the common barium salts, except barium sulfate, other barium salts are toxic, once the toxic barium salt is absorbed by the human body, it will cause great harm to the human body. For example: chronic barium poisoning can cause irritation of the upper respiratory tract and conjunctiva of the human body, and acute barium poisoning can cause muscle toxicity, reproductive toxicity, and even teratogenicity, carcinogenesis and mutagenesis. In addition, with the continuous expl...

Claims

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Application Information

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IPC IPC(8): C07F5/00C09K11/06G01N21/64
CPCC07F5/003C09K11/06C09K2211/182G01N21/643
Inventor 谢在来王泽平黄小荥
Owner FUZHOU UNIV
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