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Halloysite nano tube silver-carried monomer antibacterial agent and preparation method thereof

A technology of halloysite nanotubes and antibacterial agents, which is applied in the field of halloysite nanotube-loaded silver single-substance antibacterial agents and its preparation, can solve the problems of complex methods and high preparation costs, and achieve simple operation, large specific surface area, and environmental protection. friendly effect

Inactive Publication Date: 2011-04-06
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a new inorganic antibacterial agent, i.e. halloysite nanotube-loaded silver simple substance antibacterial agent, and further provide its preparation method to overcome the defects of high preparation cost and complicated methods of existing inorganic antibacterial agents

Method used

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  • Halloysite nano tube silver-carried monomer antibacterial agent and preparation method thereof
  • Halloysite nano tube silver-carried monomer antibacterial agent and preparation method thereof
  • Halloysite nano tube silver-carried monomer antibacterial agent and preparation method thereof

Examples

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Embodiment 1

[0028] Weigh 10g of halloysite nanotubes after water removal and add them to 150ml of toluene, add 15g of silane coupling agent, disperse for 10 minutes in an emulsifier, and put them into a three-necked flask for modification. The modification conditions are: temperature 125°C, stirring bar The rotational speed was set at 500r / min, refluxed for 24h, the product was washed 4 times with a mixture of isopropanol and toluene, and finally vacuum-dried at 50°C to obtain halloysite nanotubes modified with a silane coupling agent. 8g AgNO 3 Dissolve in 100 ml of methanol, add 7 g of modified halloysite nanotubes to the solution, magnetically stir for 1 h, and place in a shaker for 60 o C, shake at constant temperature for 24 h, centrifuge the product, wash with deionized water three times, and dry under vacuum at 60 °C to prepare halloysite nanotubes loaded with silver ions. Weigh 5 g of halloysite nanotubes loaded with silver ions and 0.15 g of NaHB 4 , adding the prepared NaOH so...

Embodiment 2

[0031] Weigh 10g of halloysite nanotubes after water removal and add them to 150ml of benzene, add 20g of silane coupling agent, disperse for 15 minutes in an emulsifier, and put them into a three-necked flask for modification. The modification conditions are: temperature 115°C, stirring bar The rotational speed was set at 500r / min, and the product was refluxed for 24 hours. The product was washed 5 times with a mixture of isopropanol and toluene, and finally dried in vacuum at 50°C to obtain halloysite nanotubes modified with a silane coupling agent. 8g AgNO 3 Dissolve in 100 ml of methanol, add 8 g of modified halloysite nanotubes to the solution, stir magnetically for 2 h, and place in a shaker for 60 oUnder constant temperature shaking for 24 h at C, the product was centrifuged, washed 4 times with deionized water, and dried in vacuum at 60 °C to obtain halloysite nanotubes loaded with silver ions. Weigh 5 g of halloysite nanotubes loaded with silver ions and 0.25 g of so...

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Abstract

The invention belongs to the technical field of inorganic nonmetallic materials, and particularly relates to a halloysite nano tube silver-carried monomer antibacterial agent and a preparation method thereof. Silane coupling agent modified halloysite nano tubes are used as carriers in the antibacterial agent, and silver monomers are carried on the carriers. The antibacterial agent has the advantages of easily obtained raw materials, low cost, simple operation, wide condition, low energy consumption, environmental friendliness, wide application range and strong antibacterial activity.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic materials, in particular to a halloysite nanotube-loaded silver simple substance antibacterial agent and a preparation method thereof. Background technique [0002] In recent years, with the improvement of living standards, people's requirements for life are also getting higher and higher. Therefore, the factors that endanger human health are getting more and more attention. According to statistics, the number of deaths caused by bacterial infection in the world is about 20 million every year, accounting for 30% of the total number of deaths. This figure is very shocking. These harmful bacteria include Escherichia coli, Staphylococcus aureus, mold and so on. At present, human beings are being attacked more and more violently by harmful microorganisms represented by bacteria, which has caused serious consequences. The large-scale outbreaks of epidemic diseases such as Escherichia c...

Claims

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Application Information

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IPC IPC(8): A01N59/16A01N25/08A01P1/00
Inventor 张亚涛张浩勤张敬一张冰陈卫航刘金盾
Owner ZHENGZHOU UNIV
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