Preparation method of composite anti-bacterium material

Abstract

The invention relates to a preparation method of a composite anti-bacterium material. The preparation method comprises the following steps: conducting dosing according to the mole ratio of ionic liquid to alpha-zirconium hydrogen phosphate, which is 1:10-10:1, then mixing the ionic liquid and the alpha-zirconium hydrogen phosphate in a solvent under normal pressure, conducting intercalation assembly and centrifugal separation under the condition of stirring the ionic liquid and the alpha-zirconium hydrogen phosphate, completely washing the ionic liquid and the alpha-zirconium hydrogen phosphate by water and ethanol, and finally obtaining the powder type alpha-zirconium hydrogen phosphate composite anti-bacterium material with ionic liquid intercalation after vacuum drying under normal temperature and normal pressure. The material has the chemical formula as follows: Zr(X)y(PO4)2; and in the formula, the X serves as cation of the ionic liquid, and the y is equal to 1 or 2. The anti-bacterium material is high in purity and yield, is environment-friendly, and resists heat. The anti-bacterium efficiency of the material on sensitive bacteria is more than 99%, and the sterilization and bacterium inhabitation ratio of the material on legionnella and other special strains is more than 99%.

Description

technical field [0001] The invention relates to an antibacterial material and a preparation method, in particular to a composite antibacterial material obtained by intercalation assembly synthesis using ionic liquid and alpha-zirconium hydrogen phosphate as raw materials and a preparation method. Background technique [0002] As a new type of functional material, antibacterial materials are widely used. At present, antibacterial materials on the market are roughly divided into two categories: inorganic antibacterial materials and organic antibacterial materials. Inorganic antibacterial materials include metals (silver, copper, zinc, etc.), compounds with these metal ions as functional components, and photocatalytic materials (TiO 2 , ZnO, etc.). Inorganic antibacterial materials have many shortcomings. Take the most commonly used silver-based antibacterial materials as an example, see reference 1 (Sambhy, V.; MacBride, M.; Peterson, B.; Sen, A., Silver bromide nanoparticle...

AI Technical Summary

Problems solved by technology

Inorganic antibacterial materials have many shortcomings. Take the most commonly used silver-based antibacterial materials as an example, see reference 1 (Sambhy, V.; MacBride, M.; Peterson, B.; Sen, A., Silver bromide nanoparticle / polymer composites : dual action tunable antimicrobial materials.J.Am.Chem.Soc 2006, 128(30), 9798-9808.) introduced that the time required for sterilization and antibacterial is long, easy to change color, expensive, and specific bacteria such as Legion Bacteria, etc. have no bactericidal and antibacterial effect; and photocatalytic materials need to be irradiated by ultraviolet light sources to have a good antibacterial effect, which limits the scope of use of inorganic antibacterial materials

Organic antibacterial agents have the characteristics of spectrum antibacterial, fast sterilization speed and high sterilization efficiency, but they also have the disadvantages of toxicity and poor heat resistance.

[0003] The combination of organic antibacterial materials and inorganic materials can improve the heat resistance of organic antibacterial materials. Some researchers at home and abroad have carried out research in this area. Organic antibacterial materials such as chlorhexidine acetate have been successfully added to inorganic layered materials. Among the carrier materials such as montmorillonite, but the tolerance temperature of these composite antibacterial materials is less than 200 ° C, in some processes that need to withstand high temperatures (such as plastics, resins, etc.), it is difficult to reach the lower temperature limit required by the process ; see reference 2 (D, Yang.; P.Yuan.; J.X.Zhu.; H.-P.He., Synthesis and charzcterization of antibacterial compounds suing montmorillonite and chlorhexidine a

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