Unlock instant, AI-driven research and patent intelligence for your innovation.

Fluorescent probe material as well as preparation method and application thereof

A fluorescent probe and solvothermal reaction technology, applied in the field of its preparation and fluorescent probe materials, can solve the problems of high storage requirements, less ability to detect heavy metal ions at the same time, insufficient environmental adaptability, etc., and achieve the effect of high application value.

Pending Publication Date: 2021-09-07
UNIVERSITY OF MACAU
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These quick detection methods still have some disadvantages in use, such as insufficient environmental adaptability or high storage requirements
Furthermore, few of these strategies can simultaneously detect heavy metal ions in Chinese herbal medicines

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fluorescent probe material as well as preparation method and application thereof
  • Fluorescent probe material as well as preparation method and application thereof
  • Fluorescent probe material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The embodiment of the present invention also proposes a method for preparing a fluorescent probe material, which includes: mixing 1,4-naphthalene dicarboxylic acid, a source of rare earth europium, and N,N-dimethylformamide for solvothermal reaction to obtain the above-mentioned Red-emitting crystalline fluorescent probe material.

[0037] In order to further improve the yield of the product, the inventor further optimized the selection and consumption of raw materials in the preparation method:

[0038] The rare earth europium source is a trivalent europium salt, the rare earth europium source is calculated based on the number of moles of europium ions it contains, and the molar ratio of 1,4-naphthalene dicarboxylic acid to the rare earth europium source is 2:1 to 4, preferably 2:1 ~3. The molar ratio of 1,4-naphthalene dicarboxylic acid and rare earth europium source can be 2:1, 2:2, 2:3, 2:4, etc., or any value between the above adjacent ratio values .

[0039] 1mm...

Embodiment 1

[0049] This embodiment provides a method for preparing a crystalline fluorescent probe material, comprising the following steps:

[0050] Place 4.32g (20mmol) of 1,4-naphthalene dicarboxylic acid and 4.46g (10mmol) of europium nitrate hexahydrate in a 250mL polytetrafluoroethylene liner, then add 150mL of analytically pure N,N-dimethyl Formamide, cover the inner cover, put it into a steel reaction kettle and tighten it, and carry out solvothermal reaction, the reaction temperature is 100 ° C, the reaction time is 2 days, after the reaction is completed, cool to room temperature, filter and wash to obtain a colorless light transparent Bulk crystal Eu(ndc)(Hndc)(DMF) 2 ] n , the yield is greater than 95% (based on the metal salt), named as sample 1#.

Embodiment 2

[0052] This example provides a method for preparing a crystalline fluorescent probe material. The specific steps are roughly the same as those in Example 1, except that the reaction temperature is 90° C., and it is named as sample 2#.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a fluorescent probe material as well as a preparation method and application thereof, and relates to the technical field of luminescent crystal materials. The chemical formula of the fluorescent probe material is [Eu (ndc) (Hndc) (DMF) 2] n, wherein ndc is ndc < 2-> and represents a product obtained after complete deprotonation of the 1, 4-naphthalene dicarboxylic acid; hndc is Hndc-and represents a product obtained after 1, 4-naphthalene dicarboxylic acid is not subjected to complete deprotonation; DMF is N, N-dimethyl formamide; and n is greater than or equal to 2. The fluorescent probe material can show a red light emission phenomenon under irradiation of exciting light of 250-330nm, and has a very high application value in the aspect of trace detection of Pb < 2 + >, Cu < 2 + > and Cd < 2 + > ions.

Description

technical field [0001] The invention relates to the technical field of luminescent crystal materials, in particular to fluorescent probe materials, their preparation methods and applications. Background technique [0002] At present, the problem of heavy metal pollution has become increasingly prominent, which seriously threatens human health. Among them, heavy metals such as lead, mercury, and cadmium may appear in food, causing severe food poisoning and related food-borne diseases have become prominent problems. Heavy metal compounds can enter the human body through various channels such as the respiratory tract, skin, and digestive tract, but it is difficult to excrete them through metabolic pathways, which can easily cause poisoning and pathological changes. [0003] With the vigorous development of the traditional Chinese medicine industry, the safety problems of traditional Chinese medicinal materials caused by heavy metal residues are becoming more and more serious, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07F5/00C09K11/06G01N21/64
CPCC07F5/003C09K11/06G01N21/6428C09K2211/182G01N2021/6432
Inventor 李鹏卢健
Owner UNIVERSITY OF MACAU