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Method for preparing antibacterial material of Ag magnetic carbon microspheres

An antibacterial material, carbon microsphere technology, applied in the fields of botanical equipment and methods, microsphere preparation, inorganic material magnetism, etc., can solve the problems of inability to recycle, low antibacterial performance, poor stability, etc., to achieve cost saving, easy Magnetic separation and improved stability

Inactive Publication Date: 2015-02-25
HEILONGJIANG UNIV
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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 preparing Ag magnetic carbon microspheres antibacterial material in order to solve the problems of low antibacterial performance, poor stability, and inability to recycle existing silver antibacterial materials.

Method used

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  • Method for preparing antibacterial material of Ag magnetic carbon microspheres
  • Method for preparing antibacterial material of Ag magnetic carbon microspheres
  • Method for preparing antibacterial material of Ag magnetic carbon microspheres

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specific Embodiment approach 1

[0023] Specific embodiment one: a kind of method for preparing Ag magnetic carbon microsphere antibacterial material of the present embodiment is to finish according to the following steps:

[0024] 1. Weigh 1 to 3 parts of iron salt, 0.01 to 0.1 parts of surfactant, 0.5 to 2 parts of ammonia source, 1 to 3 parts of carbon source, 1 to 3 parts of silver source, 0.1 to 1 parts by weight. Parts of reducing agent and 20 to 50 parts of solvent;

[0025] 2. Fe 3 o 4 Preparation of magnetic fluid: first put the iron salt weighed in step 1 into a beaker, then add the ammonia source weighed in step 1 and 10 to 20 parts of the solvent weighed in step 1, and stir at 50°C to 90°C for 30 After ~300 minutes, add surfactant and continue to stir for 30 ~ 60 minutes, then cool to room temperature, you can get Fe 3 o 4 magnetic solution;

[0026] Three, the Fe obtained in step 2 3 o 4 The magnetic solution, the carbon source weighed in step 1 and 10-30 parts of the solvent weighed in st...

specific Embodiment approach 2

[0030] Embodiment 2: This embodiment differs from Embodiment 1 in that the carbon source described in Step 1 is one or more of glucose, starch, sucrose, and fructose mixed in any ratio. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0031] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the surfactant described in step one is cetyl trimethyl ammonium bromide, cetyl dimethyl benzyl bromide Ammonium, cetyl ethoxylate dimethyl octyl ammonium chloride, lauryl ethoxylate dimethyl ammonium chloride, octylphenol ethoxylate dimethyl decane ammonium bromide, octylphenol polyoxyethylene ether dimethyl decyl ammonium chloride, cetyl alcohol polyoxyethylene ether dimethyl octyl ammonium chloride, sodium lauryl sulfate, lauryl Sodium Alkyl Sulfonate, Sodium Cetyl Benzene Sulfonate, Sodium Octadecyl Sulfate, Sodium N-Oleoyl Polypeptide, Sodium Sulfate of Fatty Alcohol Polyoxyethylene Ether, Sodium Fatty Alcohol Polyoxyethylene Ether Sulfosuccinic Acid Disodium Monoester, Lauryl Dimethyl Amine Oxide, Coco Alkyl Dimethyl Amine Oxide, Lauryl Dimethyl Amine Oxide, Lauryl Dihydroxyethyl Amine Oxide, Tetradecyl Dihydroxy Amine Oxide Ethyl amine oxide, hexadecyl dihydr...

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Abstract

The invention discloses a method for preparing an antibacterial material of Ag magnetic carbon microspheres, relating to a preparation method of Ag magnetic carbon microspheres and aiming at solving the problems that the existing antibacterial material is low in antibacterial property and poor in recycling performance. The method comprises the following steps: I, preparing Fe3O4 magnetic fluid; II, evenly mixing glucose and the Fe3O4 magnetic fluid; III, preparing Ag magnetic carbon microspheres by adopting a reducing method; V, performing the antibacterial property experiments of the Ag magnetic carbon microspheres by selecting E.coli and B.sub as experimental objects. The antibacterial property of the antibacterial material of the Ag magnetic carbon microspheres is improved by 30% compared with the existing antibacterial material, and the antibacterial material of Ag magnetic carbon microspheres is simple in technology, even in Ag distribution, less in usage amount, less in environmental pollution and low in cost, and easily realizes commercialization. The method is applied in the field of preparation of the Ag magnetic carbon microspheres.

Description

technical field [0001] The invention relates to a preparation method of a microsphere antibacterial material. Background technique [0002] Humans are easily infected by microorganisms such as bacteria, molds and viruses. Designing and preparing a new type of material with excellent antibacterial activity is of great significance to improving the living environment of human beings. Inorganic nanoantibacterial materials can be applied to prevent human beings from being infected by harmful microorganisms. Silver, as a typical one of many antibacterial materials, has received extensive attention due to its stability, durability, and broad-spectrum antibacterial activity brought about by its physicochemical properties. Silver nanoparticles can easily enter the inside of bacteria and interact with proteins and DNA in cells to kill bacteria. Current studies have shown that good dispersion and stability are very important for the wide application of silver nanoparticles in the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/16A01P1/00B01J13/02H01F1/01
Inventor 蒋保江付宏刚郭世恩栾玉婷郝荣
Owner HEILONGJIANG UNIV
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