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Silver-amino tetrazole metal organic framework and preparation method and application of silver-amino tetrazole metal organic framework

A metal-organic framework and aminotetrazole technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, light water/sewage treatment, etc., to achieve good catalytic effect, simple preparation method, and stable process Effect

Active Publication Date: 2015-01-07
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, metal organic framework materials with tetrazole and its derivatives and metal silver ions as the central transition metal have not been reported yet.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A, material preparation

[0061] Take by weighing 0.25mmol of silver nitrate in a reaction flask, add 4ml of water, stir on a magnetic stirrer with a rotating speed of 400rpm for 15 minutes to obtain a metal silver salt solution, then dropwise add 19.5mmol of ethylenediamine, continue stirring for 30min to Mix evenly to obtain a reaction solution 1;

[0062] Weigh 0.5 mmol of 5-aminotetrazole in a reaction flask, add 5 ml of methanol, stir evenly to obtain a reaction solution II;

[0063] Mix 2ml of water and 2ml of methanol evenly to obtain a buffer solution;

[0064] B, Diffusion method to prepare the target product

[0065] Slowly put the reaction solution 1 obtained in step A into the bottom layer of the glass tube, then slowly place the buffer solution obtained in step A on the reaction solution 1, then slowly place the reaction solution 2 obtained in step A on the buffer solution, and then seal The glass tube is used to keep the reaction liquid system at a pH v...

Embodiment 2

[0068] A, material preparation

[0069] Weigh 0.3 mmol of silver perchlorate in a reaction flask, add 5 ml of water, stir on a magnetic stirrer at a speed of 400 rpm for 30 min to obtain a metal silver salt solution, then add 30 mmol of ethylenediamine dropwise, and continue stirring for 1 h to Mix evenly to obtain a reaction solution 1;

[0070] Weigh 0.5mmol of 5-aminotetrazole in a reaction flask, add 5ml of ethanol, and stir evenly to obtain a reaction solution II;

[0071] Mix 2ml of water and 2ml of ethanol evenly to obtain a buffer solution;

[0072] B, Diffusion method to prepare the target product

[0073] Slowly put the reaction solution 1 obtained in step A into the bottom layer of the glass tube, then slowly place the buffer solution obtained in step A on the reaction solution 1, then slowly place the reaction solution 2 obtained in step A on the buffer solution, and then seal The glass tube is used to keep the reaction liquid system at a pH value of 11, and to ...

Embodiment 3

[0076] Photodegradable organic dye rhodamine 6G (molecular formula: C 28 h 31 N 2 o 3 Cl):

[0077] Prepare an aqueous solution of a certain amount of organic dye rhodamine 6G (1×10-5 mol / L). The silver-aminotetrazole metal organic framework material prepared in Example 1 was ground and pulverized, and 5 mg of the material was added into 10 mL of an organic dye aqueous solution, and then subjected to ultrasonication for 5 minutes, and stirred at a constant speed overnight in a dark environment (to establish organic dye and Adsorption equilibrium on the catalyst surface). The above solution was irradiated using a 300W high-pressure mercury lamp ultraviolet light source. During the irradiation period, a series of fixed amounts of the suspension were collected after being filtered through a membrane filter (pore size 0.022 mm), and the filtrate was analyzed by a UV-visible spectrophotometer to identify the real-time concentration. The concentration of the organic dye is mea...

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PUM

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Abstract

The invention discloses a silver-amino tetrazole metal organic framework, a preparation method of the silver-amino tetrazole metal organic framework as well as application of the silver-amino tetrazole metal organic framework in organic dyestuff light degradation. The preparation method comprises the following steps: by utilizing a simple solvent diffusion method, reacting a metal silver salt and an organic amine, thereby preparing a stable metal solution; and enabling the metal solution to react with an organic solution of 5-amino tetrazole, thereby preparing the silver-amino tetrazole metal organic framework with the light degradation performance. The silver-amino tetrazole metal organic framework is simple in preparation process, is high in organic dyestuff photocatalytic degradation efficiency and is a potential light degradation organic pollutant material.

Description

technical field [0001] The invention relates to a metal organic framework material, in particular to a silver-aminotetrazole metal organic framework material with photocatalytic degradation of organic dyes and a preparation method thereof. Background technique [0002] Metal-Organic Framework (MOF) refers to a metal-organic framework material with a periodic network structure formed by self-assembly of organic ligands and metal ions. It combines the characteristics of both organic polymers and coordination compounds, which is different from general organic polymers and inorganic polymers of silicon and oxygen, but combines the characteristics of both organic ligands and inorganic metal ions , by selecting appropriate ligands and metal ions or metal clusters, various subtle factors affecting self-assembly can be controlled, and metal-organic supramolecules with novel topological structures can be synthesized, such as one-dimensional chains, ladders, blocks, brick walls, and h...

Claims

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Application Information

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IPC IPC(8): B01J31/12C02F1/30
Inventor 张祺陈东何璇周小清李洪珍杨宗伟李金山
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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