A kind of method for synthesizing nanometer cu-mof bacteriostatic agent in aqueous phase

A kind of bacteriostatic agent, nanotechnology, applied in the field of water-phase synthesis of nano-Cu-MOF bacteriostatic agent, can solve the problem of difficult scale expansion, achieve the effect of enhanced bacteriostatic rate, wide application value, and inhibition of bacterial adhesion

Active Publication Date: 2021-11-16
INST OF EARTH ENVIRONMENT CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for synthesizing nano-Cu-MOF bacteriostatic agent in water phase, which is simple to prepare, low in cost, and easy to popularize and produce. The technology requires organic solvents and is difficult to scale up

Method used

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  • A kind of method for synthesizing nanometer cu-mof bacteriostatic agent in aqueous phase
  • A kind of method for synthesizing nanometer cu-mof bacteriostatic agent in aqueous phase
  • A kind of method for synthesizing nanometer cu-mof bacteriostatic agent in aqueous phase

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) At room temperature, betaine was dissolved in 10mL water, stirred to obtain a clear solution, and the mass fraction of the resulting aqueous solution was 3%;

[0037] (2) Put copper nitrate hexahydrate and zirconium chloride into the solution obtained in step (1) in a molar ratio of 0:10 respectively, stir until completely dissolved, then add 2-aminoterephthalic acid powder, chlorinate The molar ratio of zirconium to 2-aminoterephthalic acid is 1:1, stir for 1h until uniform;

[0038] (3) Put the suspension in step (2) in a 20mL hydrothermal kettle, react in a constant temperature oven at 110°C for 24h, wash the obtained product with deionized water, centrifuge 3 times at 8000r / min, and dry it in vacuum at 60°C for 24h. Obtain Cu-MOF powder.

Embodiment 2

[0040] (1) At room temperature, cocamidopropyl betaine was dissolved in 10mL water, stirred to obtain a clear solution, and the mass fraction of the resulting aqueous solution was 8%;

[0041] (2) Put copper nitrate hexahydrate and zirconium chloride into the solution obtained in step (1) at a molar ratio of 1:4 respectively, stir until completely dissolved, then add 2-aminoterephthalic acid powder, hexahydrate The total substance amount of copper nitrate and zirconium chloride is 1:2 with the molar ratio of 2-aminoterephthalic acid, and stirs for 1h until uniform;

[0042] (3) Put the suspension in step (2) in a 20mL hydrothermal kettle, react in a constant temperature oven at 110°C for 24h, wash the obtained product with deionized water, centrifuge 3 times at 8000r / min, and dry it in vacuum at 60°C for 24h. Obtain Cu-MOF powder.

Embodiment 3

[0044] (1) At room temperature, dissolve betaine in 10mL water, stir to obtain a clear solution, and the mass fraction of the resulting aqueous solution is 10%;

[0045] (2) Put copper nitrate hexahydrate and zirconium chloride into the solution obtained in step (1) at a molar ratio of 10:0 respectively, stir until completely dissolved, then add 2-aminoterephthalic acid powder, hexahydrate The molar ratio of copper nitrate to 2-aminoterephthalic acid is 1:3, stir for 1h until uniform;

[0046] (3) Put the suspension in step (2) in a 20mL hydrothermal kettle, react in a constant temperature oven at 110°C for 24h, wash the obtained product with deionized water, centrifuge 3 times at 8000r / min, and dry it in vacuum at 60°C for 24h. Obtain Cu-MOF powder.

[0047] The specific experimental analysis is given below.

[0048] (1) Morphology and elemental analysis

[0049] By scanning electron microscope (model is MAIA3, Tescon company) carries out morphological characterization to ...

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Abstract

The invention discloses a method for synthesizing nano-Cu-MOF bacteriostatic agent in water phase. At room temperature, an amphoteric surfactant is dissolved in water to obtain an amphoteric surfactant aqueous solution; a metal salt is added to the amphoteric surfactant aqueous solution, After stirring evenly, add organic carboxylic acid ligand powder and mix evenly to obtain a suspension; the suspension is subjected to hydrothermal reaction at 100-140°C for 24-36h, washed and dried to obtain a nano-Cu-MOF bacteriostatic agent. The invention overcomes the technical difficulties that the synthesis of traditional MOF materials requires an organic solvent, the operation is cumbersome, and the large-scale industrial production is difficult. The material is green and environmentally friendly, relying on the slow release of Cu ions to inhibit bacteria, it has high antibacterial ability against Gram-negative bacteria and positive bacteria, strong antibacterial property and long-lasting effect, and can be widely added to antibacterial fabrics such as masks and protective clothing Production.

Description

technical field [0001] The invention relates to the technical field of preparation of antibacterial materials, in particular to a method for synthesizing a nanometer Cu-MOF antibacterial agent in an aqueous phase. Background technique [0002] Masks and protective clothing are hygienic products and are widely used in hospitals and factories to filter the air entering the mouth, nose and skin, and prevent harmful gases, droplets and bacteria from entering the human body. Traditional masks are mainly composed of fiber non-woven fabrics and filter-type polypropylene melt-blown fabrics. The middle layer of melt-blown fabrics is used to filter bacteria. The filtration efficiency is not high and most of them are disposable products. High-efficiency antibacterial materials for protective clothing are very necessary. [0003] In recent years, metal-organic frameworks (Metal-Organic Frameworks, MOF) are a new type of organic-inorganic hybrid periodic network materials with high spec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/44A01N37/10A01N55/02C08G83/00A01P1/00A41D31/30A41D13/11A41D13/12A41D13/00
CPCA01N37/10A01N37/44A01N55/02A41D13/00A41D13/1192A41D13/12A41D31/30C08G83/008
Inventor 黄宇彭仕琪王震宇曹军骥
Owner INST OF EARTH ENVIRONMENT CHINESE ACAD OF SCI
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