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Antibacterial activated carbon composite material and preparation method thereof

A composite material and activated carbon technology, applied in the field of material engineering, can solve the problems of safety and environmental pollution, poor heat resistance and stability, etc., and achieve good antibacterial effect, high TiO2 content, antibacterial effect and long-lasting effect

Inactive Publication Date: 2015-10-28
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 activated carbon composite material and preparation method thereof
  • Antibacterial activated carbon composite material and preparation method thereof
  • Antibacterial activated carbon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 antibacterial activated carbon composite material and preparation method thereof

[0034] 1. Preparation and pretreatment of activated carbon

[0035] 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.

[0036] 2. Preparation of mixed system of titanium alkoxide, solvent and acid

[0037]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 1:18), t...

Embodiment 2

[0043] Embodiment 2 antibacterial activated carbon composite material and preparation method thereof

[0044] 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

[0045] Embodiment 3 antibacterial activated carbon composite material and preparation method thereof

[0046] 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 activated carbon composite material using a waste fiber board as a raw material, the waste fiber board is carbonized at a temperature of 550-600 DEG C for 1-1.5h, the carbonized matter is crushed and activated through introducing water vapor of 700-800 DEG C, the activated carbon obtained is screened and then dehydrated at a constant temperature, then the activated carbon is subjected to TiO2 loading by using a sol-gel method, and the obtained gel is dried to obtain the antibacterial activated carbon composite material. The activated carbon composite material prepared according to the method is high in density, excellent in thermal stability, high in content of loaded TiO2, and uniform in dispersion of the loaded TiO2, and has the advantages of both broad-spectrum antibacterial property, and high antibacterial rate, excellent antibacterial property as well as long-lasting antibacterial effect.

Description

technical field [0001] The invention relates to the field of material engineering, in particular to an antibacterial activated carbon composite 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 poro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J21/18A01N59/16A01P1/00
Inventor 张文博刘心怡
Owner BEIJING FORESTRY UNIVERSITY
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