Method for preparing titanium sol carrier zinc and copper ion-adsorbing antibacterial agent by microwave heating

A technology of microwave heating and titanium sol, applied in botanical equipment and methods, chemicals for biological control, biocides, etc. Solve the effect of single action, uniform particle size

Inactive Publication Date: 2011-01-12
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Solve the problem of high cost of silver-based antibacterial agents and discoloration of antibacterial materials

Method used

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  • Method for preparing titanium sol carrier zinc and copper ion-adsorbing antibacterial agent by microwave heating
  • Method for preparing titanium sol carrier zinc and copper ion-adsorbing antibacterial agent by microwave heating
  • Method for preparing titanium sol carrier zinc and copper ion-adsorbing antibacterial agent by microwave heating

Examples

Experimental program
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Effect test

Embodiment 1

[0018] 8mL butyl titanate (Ti(OBu) 4 ) was added dropwise into 20mL of ethanol with stirring at 50°C and mixed evenly, then 2mL of glacial acetic acid was added to obtain solution A. Then 60 mL of ethanol and 2 mL of distilled water were added with nitric acid under stirring to adjust the pH value to 1-2 to obtain solution B. Add solution B dropwise to solution A at a rate of 50-60 drops per minute, then add nitric acid to 60 mL of ethanol and 2 mL of distilled water under stirring to adjust the pH value to 2-3 to obtain solution B. Add solution B dropwise to solution A at a rate of 50-60 drops per minute, stir and adjust the pH value to 2-3, place it in a microwave oven with a power of 500-900W and heat it for 20-90s to obtain light yellow Transparent titanium sol.

Embodiment 2

[0020] Add 0.3mol / L copper nitrate and zinc nitrate solution dropwise to the sol, and the amount of ions added is 8:100 (the molar ratio of the total number of ions to butyl titanate), that is, 1.5g ions / 100mL butyl titanate, zinc and copper ions The molar ratio of the mixture is 2:1, stirred at 30°C for 2h, and then heated by microwave for 20-50s to obtain a titanium gel adsorbing zinc and copper ions. Then place the prepared gel in a drying oven to dry to obtain a loose xerogel. After grinding, place it in a crucible and put it in a furnace for calcination at 450°C and keep it warm for 30-60 minutes. After taking it out, you can get the desired antibacterial agent.

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Abstract

The invention relates to a method for preparing a titanium sol carrier zinc and copper ion-adsorbing antibacterial agent by microwave heating. The method comprises the following steps of: dripping 8mL of butyl titanate into 20mL of ethanol for uniformly mixing under certain condition, and adding 2mL of glacial acetic acid to prepare solution A; stirring 60mL of ethanol and 2mL of distilled water and adding nitric acid to regulate the pH value to be 2-3 so as to prepare solution B; dripping the solution B into the solution A at a dripping speed of 50 to 60 drops per minute, stirring, regulating the pH value to be 2-3, and heating the solution in a microwave oven for 20 to 90 seconds so as to prepare titanium sol; dripping 0.3mol/L solution of copper nitrate and zinc nitrate into the titanium sol, stirring for 1 to 2 hours at the temperature of 30 DEG C, and performing microwave heating for 20 to 50 seconds so as to prepare titanium gel for absorbing the zinc and copper ions, wherein the ion addition is 8:100 (the molar ratio of total ions to the butyl titanate) and the molar ratio of zinc ions to copper ions is 2:1; drying, grinding and calcining the gel, keeping the temperature at 450 DEG C for 30 to 60 minutes, and finally taking the product out so as to prepare the needed antibacterial agent. Researches prove that: the antibacterial agent has excellent performance, and simultaneously solves the problems that a silver antibacterial agent has high cost and an antibacterial material changes color and has single function.

Description

Technical field: [0001] The invention relates to a powder preparation technology, in particular to a method for preparing a titanium sol carrier to absorb zinc and copper ion antibacterial agents by using microwave heating. Background technique: [0002] At present, the research on inorganic antibacterial agents at home and abroad mainly focuses on the research and application of a single antibacterial agent, such as the research and application of antibacterial or self-cleaning effects of a single silver or titanium series. The developed products have a single function and limited application, and the antibacterial effect of antibacterial materials is not ideal. For example, titanium-based materials have no antibacterial self-cleaning effect at night when there is no light, and night is the peak period of bacterial reproduction. In addition, silver-based antibacterial materials and titanium-based antibacterial self-cleaning materials also have many shortcomings, such as the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/20A01N59/16A01N25/08A01P1/00
Inventor 王黔平赵志广吴卫华郑志军何晓凤赵莎
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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