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Iron ion fluorescent probe porous material and preparation method thereof

A technology of fluorescent probes and porous materials, applied in the field of synthesis of functional porous coordination polymer materials, can solve problems such as poor control of three-dimensional pore size, poor thermal stability of porous structures, complex synthesis conditions, etc. The effect of controllable appearance rules and simple preparation process

Inactive Publication Date: 2016-09-28
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the following problems exist in the practical application of common coordination polymer fluorescent probes: 1. Most of them are selected from rare earth metals, and the raw materials themselves are expensive, resulting in increased costs and complex synthesis conditions, so the synthesis cost is relatively high; 2. Due to the influence of ligands, metal coordination and guest molecules, the three-dimensional pore size is not easy to control, resulting in poor thermal stability of the porous structure; 3. Low yield and poor solubility

Method used

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  • Iron ion fluorescent probe porous material and preparation method thereof
  • Iron ion fluorescent probe porous material and preparation method thereof
  • Iron ion fluorescent probe porous material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0024] A preparation method for an iron ion fluorescent probe porous material, comprising the steps in turn:

[0025] 1) Weigh 0.1 mmol of solid powder 2-(4-carboxyphenoxy)terephthalic acid and dissolve it in 5 mL of distilled water at a temperature of 75°C, add the prepared 1M sodium hydroxide to adjust the pH of the solution to 6.5, and sonicate for 5 minutes After heating and stirring for 30 minutes, the ligand is completely deprotonated;

[0026] 2) Weigh 0.1mmol of cadmium nitrate and add it directly to the solution prepared in 1), the molar ratio of divalent metal cadmium to 2-(4-carboxyphenoxy)terephthalic acid is 1:1, and stir for 10 minutes to appear white turbid liquid;

[0027] 3) Configure a ternary mixed solvent system: mix 5mL of methanol, 5mL of acetonitrile and 10mL of distilled water in a volume ratio of 1:1:2, and stir at room temperature for 30 minutes;

[0028] 4) Mix the prepared solutions of 2) and 3) together and continue to stir for one hour, then sea...

Embodiment 2

[0031] A preparation method for an iron ion fluorescent probe porous material, comprising the steps in turn:

[0032] 1) Weigh 0.05mmol of solid powder 2-(4-carboxyphenoxy)terephthalic acid and dissolve it in 5mL of distilled water at 80°C, add the prepared 1M sodium hydroxide to adjust the pH of the solution to 6.5, and sonicate for 5min After heating and stirring for 30 minutes, the ligand is completely deprotonated;

[0033] 2) Weigh 0.075mmol of cadmium nitrate and add it directly into the solution prepared in 1), the molar ratio of divalent metal cadmium to 2-(4-carboxyphenoxy)terephthalic acid is 1.5:1, stir for 10 minutes and white turbid liquid;

[0034] 3) Configure a ternary mixed solvent system: mix 4mL of methanol, 4mL of acetonitrile and 12mL of distilled water in a volume ratio of 1:1:3, and stir at room temperature for 30 minutes;

[0035] 4) Mix the prepared solutions of 2) and 3) together and continue to stir for one hour, then seal the mixed solution in a s...

Embodiment 3

[0038] A preparation method for an iron ion fluorescent probe porous material, comprising the steps in turn:

[0039]1) Weigh 0.05mmol of solid powder 2-(4-carboxyphenoxy)terephthalic acid and dissolve it in 5mL of distilled water at a temperature of 90°C, add the prepared 1M sodium hydroxide to adjust the pH of the solution to 7, and sonicate for 5min After heating and stirring for 30 minutes, the ligand is completely deprotonated;

[0040] 2) Weigh 0.05mmol of cadmium acetate and add it directly to the solution prepared in 1), the molar ratio of divalent metal cadmium to 2-(4-carboxyphenoxy)terephthalic acid is 1:1, and stir for 10 minutes to appear white turbid liquid;

[0041] 3) Configure a ternary mixed solvent system: mix 3mL of methanol, 3mL of acetonitrile and 12mL of distilled water in a volume ratio of 1:1:4, and stir at room temperature for 30 minutes;

[0042] 4) Mix the prepared solutions of 2) and 3) together and continue to stir for one hour, then seal the mi...

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Abstract

The invention belongs to the technical field of synthesis of functional porous coordination polymer materials, and particularly relates to an iron ion fluorescent probe porous material and a preparation method thereof. According to the method, 2-(4-carboxyphenoxy) terephthalic acid serves as an organic raw material and is subjected to a solvothermal reaction with cadmium metal salt, and a novel porous coordination polymer material with the fluorescence property and the iron ion fluorescent probe function is obtained through a ternary mixed solvent system. The material has the advantages of being good in dissolubility, high in thermal stability, high in yield, high in purity, high in crystalline quality and the like.

Description

Technical field: [0001] The invention belongs to the technical field of synthesis of functional porous coordination polymer materials, and in particular relates to a porous material for an iron ion fluorescent probe and a preparation method thereof. Background technique: [0002] Iron is the most abundant trace element in life, and many biological and chemical processes at the cellular level require the participation of iron ions. It is an important component of enzymes related to the maintenance of human life activities. In addition, the transportation, storage and balance of iron ions are closely related to the living body. Excessive or insufficient iron ions can lead to the disorder of the living body. In recent years, the detection of iron ions by fluorescent probe technology has attracted great attention. There are two representative categories, one is organic dye molecular fluorescent probes, which are compatible with Fe 3+ Coordination occurs, and the fluorescence i...

Claims

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Application Information

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IPC IPC(8): C09K11/06C08G83/00
CPCC08G83/008C09K11/06C09K2211/188
Inventor 张亚男殷海菊党蓓君张鹏
Owner SHAANXI UNIV OF SCI & TECH
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