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PCN (Porous Coordination Network) 222 metal organic framework material as well as preparation method and application thereof

A metal-organic framework, PCN222 technology, applied in the direction of color/spectral characteristic measurement, etc., to achieve the effect of low cost, improved sensitivity, and high-efficiency enzyme inhibition method detection

Active Publication Date: 2017-07-18
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The usual metal-organic framework materials are used as bio-scaffold materials or adsorption materials, and there are no applications and methods in the detection of pesticide residues and related fields

Method used

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  • PCN (Porous Coordination Network) 222 metal organic framework material as well as preparation method and application thereof
  • PCN (Porous Coordination Network) 222 metal organic framework material as well as preparation method and application thereof
  • PCN (Porous Coordination Network) 222 metal organic framework material as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The implementation steps are as follows:

[0044] Step 1, take ZrCl 4 140mg, TCPP 100mg and benzoic acid 5500mg in a beaker, add DMF 16mL, ultrasonic 30min to make it uniform;

[0045] Step 2. Pour the uniformly mixed solution into the reaction kettle and react at 120°C for 48 hours;

[0046] Step 3. After the hydrothermal reaction is completed, the product is centrifuged to remove the upper liquid, and the ethanol is repeatedly centrifuged and washed 3 times: the rotation speed is 7000 rpm, and the rotation speed time is 5 minutes

[0047] Step 4, drying at a temperature of 100° C. for 12 hours to obtain a solid powder of brown PCN 222 metal-organic framework material (abbreviated as PCN 222 hereinafter).

[0048] The characterization results of PCN 222 synthesized by the above experimental steps are as follows:

[0049] In order to study the microscopic morphology of the crystal growth of PCN 222, and to characterize whether the MOFs material was successfully prepar...

Embodiment 2

[0053] The implementation steps are as follows:

[0054] Step 1, take ZrCl 4 Put 120mg, TCPP 100mg and benzoic acid 5800mg in a beaker, add DMF 12mL, ultrasonic 30min to make it uniform;

[0055] Step 2. Pour the uniformly mixed solution into the reaction kettle and react at 130°C for 45h;

[0056] Step 3. After the hydrothermal reaction is completed, the product is centrifuged to remove the upper liquid, and the ethanol is repeatedly centrifuged and washed 3 times: the rotation speed is 6000 rpm, and the rotation speed time is 6 minutes

[0057] Step 4, drying at a temperature of 120° C. for 10 h to obtain a solid powder of brown PCN 222 metal-organic framework material (abbreviated as PCN 222 hereinafter).

Embodiment 3

[0059] The implementation steps are as follows:

[0060] Step 1, take ZrCl 4 160mg, TCPP 100mg and benzoic acid 5000mg in a beaker, add DMF 20mL, ultrasonic 30min to make it uniform;

[0061] Step 2. Pour the uniformly mixed solution into the reactor and react at 110°C for 51 hours;

[0062] Step 3. After the hydrothermal reaction is completed, the product is centrifuged to remove the upper liquid, and the ethanol is repeatedly centrifuged and washed 3 times: the rotation speed is 8000 rpm, and the rotation time is 3 minutes

[0063] Step 4, drying at 60° C. for 14 hours to obtain solid powder of brown PCN 222 metal-organic framework material (abbreviated as PCN 222 hereinafter).

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PUM

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Abstract

The invention discloses a PCN (Porous Coordination Network) 222 metal organic framework material as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing porphyrin, zirconium chloride and benzoic acid with N,N-dimethylformamide under the ultrasonic condition to obtain a mixed solution; carrying out hydrothermal reaction on the mixed solution, and carrying out ethanol washing, centrifuging and drying to obtain the PCN 222 metal organic framework material. The microtopography of the material is of a rod-like structure, and a crystal spindle is a hexahedron; the PCN 222 metal organic framework material has good thermal stability and can be used for enhancing the sensitiveness of a pesticide residue detection enzymatic inhibition method; the method disclosed by the invention has the advantages of simplicity, quickness and low cost and provides a practical tool for determining organophosphorus pesticide in a complex sample matrix.

Description

technical field [0001] The invention relates to the technical field of pesticide residue detection, in particular to a PCN 222 metal organic framework material preparation method and its application in enzyme inhibition method sensitization. Background technique [0002] In order to ensure and promote the development of agriculture, forestry and animal husbandry and meet people's demand for agricultural and sideline products, pesticides have played a significant role, but at the same time, the long-term and extensive use or even abuse of pesticides has also caused serious pollution to air, water, soil and agricultural and animal husbandry products , destroy the ecological environment, and human health is also affected. Since the 1980s, organophosphorus pesticides have gradually become the most widely used pesticides in the world due to their quick effect, good effect and convenient use. According to the statistics of the World Health Organization, about 3 million people are...

Claims

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Application Information

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IPC IPC(8): G01N21/31
CPCG01N21/31
Inventor 徐霞红王新全王祥云郭玉娜齐沛沛汪志威王强杨华
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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