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Antibacterial active carbon nano composite material and preparation method thereof

A nano-composite material and activated carbon technology, applied in the field of material engineering, can solve problems such as poor heat resistance and stability, safety and environmental pollution, and achieve the effects of high TiO2 content, good antibacterial effect, and uniform TiO2 content dispersion.

Inactive Publication Date: 2014-05-14
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the wood antibacterial materials used in the market are mainly organic antibacterial agents (such as pentachlorophenol). However, organic antibacterial agents have poor heat resistance and stability, and only have antibacterial effects on some bacterial species. In addition, there are safety and environmental issues. pollution and other issues

Method used

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  • Antibacterial active carbon nano composite material and preparation method thereof
  • Antibacterial active carbon nano composite material and preparation method thereof
  • Antibacterial active carbon nano composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1 antibacterial activated carbon nanocomposite material and preparation method thereof

[0038] 1. Preparation and pretreatment of activated carbon

[0039] Treat the fiberboard into a long specimen of 10cm×3cm×0.9cm, and carbonize it at 600°C for 1 hour to obtain a carbonized product; crush the carbonized product into small pieces of 10mm×10mm×3mm, and heat it at 700°C with a water vapor flow rate of 4.84g Activated carbon was activated for 1 h under the condition of 1 / min; the activated carbon was sieved with a 120-mesh sieve, and dehydrated at a constant temperature of 110 ° C for 12 h.

[0040] 2. Preparation of mixed system of titanium alkoxide, solvent and acid

[0041] After adding n-butyl titanate and nitric acid to isopropanol, stir continuously until a colloidal solution with fine particles and uniform dispersion is formed to obtain a mixed system, wherein the volume ratio of n-butyl titanate to isopropanol is 1 :4 (that is, the molar ratio is 1:1...

Embodiment 2

[0049] Embodiment 2 antibacterial activated carbon nanocomposite material and preparation method thereof

[0050] Loading TiO by Sol-Gel Method 2 In the step, 0.5g activated carbon is put into the mixing system to prepare TiO 2 / activated carbon composite material, all the other are identical with embodiment 1.

Embodiment 3

[0051] Embodiment 3 antibacterial activated carbon nanocomposite material and preparation method thereof

[0052] Loading TiO by Sol-Gel Method 2 In the step, 2g activated carbon is put into the mixing system to prepare TiO 2 / activated carbon composite material, all the other are identical with embodiment 1.

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Abstract

The invention provides an antibacterial active carbon nano composite material. The preparation method comprises the following steps: by taking waste fiber plates as a raw material, charring for 1-1.5 hours at 550-600 DEG C; activating the obtained carbide crushed by introducing vapor at 700-800 DEG C; sieving the activated carbon and dehydrating at constant temperature; then, carrying out TiO2 load on the activated carbon by a sol-gel method; and microwave heating the dried gel under a condition of 500-800w to obtain the antibacterial active carbon nano composite material. The active carbon nano composite material product prepared by the method provided by the invention is high in density, good in thermal stability, high in content of loaded TiO2 and uniform in dispersion of the loaded TiO2, has broad-spectrum antibacterial property, and also has high antibacterial rate, good antibacterial property and durability of antibacterial property.

Description

technical field [0001] The invention relates to the field of material engineering, in particular to an antibacterial activated carbon nanocomposite material and a preparation method thereof. Background technique [0002] my country's fiberboard industry has developed rapidly. In 2011, the total output of fiberboard reached 55.6212 million m 3 . At present, the main treatment method of waste fiberboard is incineration, and the dioxin produced in this process is a first-class carcinogen to human beings. Activated Carbon (AC) is a carbonaceous adsorption material with rich pore structure and huge specific surface area. It is widely used in industry, agriculture, medicine and health, environmental protection and other fields due to its strong adsorption capacity and convenient regeneration. . The waste fiberboard is prepared into activated carbon, the fiberboard can be treated harmlessly, and the utilization rate of the material can be improved. In addition, considering the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16A01P1/00C01B31/10C01B32/336
Inventor 张文博刘心怡
Owner BEIJING FORESTRY UNIVERSITY
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