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Adsorption decomposition agent and preparation method thereof

A decomposer, weight percent technology, applied in separation methods, catalyst activation/preparation, chemical instruments and methods, etc., can solve the problem of no visible light catalytic decomposition and antibacterial effect, no visible light catalysis, unfavorable sustainable utilization of resources, etc. question

Active Publication Date: 2010-09-29
上海莱乾新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its material does not have visible light catalysis and uses a large amount of functional minerals, which is not conducive to the sustainable utilization of resources.
[0006] Composite aspect of bamboo charcoal, tourmaline, photocatalyst three: in publication number CN 101249272A, take tourmaline and bamboo charcoal as the main agent (2%~5%), nano titanium dioxide, nano medical stone, nano meerschaum, nano zeolite etc. A kind of nanocomposite anion material is made for auxiliary agent (1%~3%), and stabilizing dispersant, because of the limitation of production technology, so its main agent and auxiliary agent content that it utilizes are less, so it has only limited Negative ion effect, and no visible light catalytic decomposition and antibacterial effect
Publication number CN 101195537A uses tourmaline powder (25% to 40%), bamboo charcoal (5%), titanium dioxide (5% to 8%), kaolin, and potassium albite powder as main raw materials to prepare ceramic sheets. With negative ion, far infrared, antibacterial effect, the number of negative ions is 830-960 / cm 3 , the far-infrared emission rate is 0.87, and the antibacterial rate against Escherichia coli and Staphylococcus aureus is greater than 99%, but it also does not have visible light catalytic decomposition and antibacterial effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1, a kind of preparation method of adsorption decomposition agent, carries out following steps successively:

[0021] 1), the base material that will be made up of the bamboo charcoal particle (particle diameter≤1 millimeter) of 90 weight parts and the tourmaline (particle diameter≤100 micron) of 10 weight parts is put into the ball mill mixer after dry mixing 2 hours, pass 100 Mesh sieve to obtain dry powder;

[0022] 2), after adding the photocatalyst titanium dioxide sol in the dry powder, put it into a ball mill mixer and wet mix for 2 hours to obtain the mixture; the photocatalyst titanium dioxide sol accounts for 10% of the dry powder gross weight;

[0023] 3) Dry the mixture at room temperature (10-30° C.) for 24 hours, pass through a 50-mesh sieve, and then heat-treat at 500° C. for 2 hours to obtain an adsorption decomposition agent.

[0024] The specific surface area of ​​the adsorption decomposition agent reaches 800-850m 2 / g, release negative i...

Embodiment 2

[0025] Embodiment 2, a kind of preparation method of adsorption decomposition agent, carries out following steps successively:

[0026] 1), put the base material that is made up of the bamboo charcoal particle of 93 parts by weight and the tourmaline particle of 7 parts by weight into the ball mill mixer and dry mix for 1 hour, pass through a 100-mesh sieve to obtain a dry powder;

[0027] 2), after adding the photocatalyst titanium dioxide sol in the dry powder, put it into a ball mill mixer and wet mix for 3 hours to obtain the mixture; the photocatalyst titanium dioxide sol accounts for 15% of the dry powder gross weight;

[0028] 3) Dry the mixture at room temperature (10-30° C.) for 36 hours, pass through a 50-mesh sieve, and then heat-treat at 450° C. for 3 hours to obtain an adsorption decomposition agent.

[0029] The specific surface area of ​​the adsorption decomposition agent reaches 800-900m 2 / g, release negative ion concentration 5000~6000 / cm 3 , After 4 hours o...

Embodiment 3

[0030] Embodiment 3, a kind of preparation method of adsorption decomposition agent, carries out following steps successively:

[0031] 1), put the base material that is made up of the bamboo charcoal particle of 94 parts by weight and the tourmaline particle of 6 parts by weight into the ball mill mixer and dry mix for 2 hours, pass through a 100-mesh sieve to obtain dry powder;

[0032] 2), after adding the photocatalyst titanium dioxide sol in the dry powder, put it into a ball mill mixer and wet mix for 3 hours to obtain the mixture; the photocatalyst titanium dioxide sol accounts for 15% of the dry powder gross weight;

[0033] 3) Dry the mixture at room temperature (10-30° C.) for 36 hours, pass through a 50-mesh sieve, and then heat-treat at 400° C. for 4 hours to obtain an adsorption decomposition agent.

[0034] The specific surface area of ​​the adsorption decomposition agent reaches 800-850m 2 / g, release negative ion concentration 5500~6000 / cm 3 , After 4 hours o...

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Abstract

The invention discloses an adsorption decomposition agent. 90 to 95 mass percent of bamboo charcoal grains and 5 to 10 mass percent of tourmaline grains form a base material; and titanium dioxide sol serving as photo-catalyst, which accounts for 10 to 20 percent of the total weight of the base material, is added into the base material and is used as an additive. The invention also discloses a preparation method for the adsorption decomposition agent, which comprises the following steps of: 1) performing ball-milling and mixing on the base material to obtain a dry powdery material; 2) adding the titanium dioxide sol serving as the photo-catalyst into the dry powdery material for ball milling and mixing to obtain a mixture; and 3) drying, sieving and thermally processing the mixture to obtain the adsorption decomposition agent. The adsorption decomposition agent has the characteristics of high adsorption, catalytic decomposition in the presence of light and antibacterium.

Description

technical field [0001] The invention relates to an adsorption decomposition agent and a preparation method thereof, in particular to a material for adsorption and decomposition of VOCs and a production method thereof. Background technique [0002] Volatile organic compounds (VOCs) together with NOx, SOx and particulate matter are the main pollutants in the atmosphere of cities and industrial areas. Their emissions not only pollute the environment and destroy the atmosphere, but also threaten the physical and mental health of the public. At present, adsorption technology is the most commonly used and relatively simple control technology in the treatment of VOCs. However, the problems of adsorbents such as easy saturation adsorption, inability to eradicate harmful substances, and short life have seriously affected the development of adsorption purification technology. [0003] Bamboo charcoal is widely used in adsorption technology because of its high specific surface area, f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30B01J23/06B01J37/04B01D53/86B01D53/72B01D53/38
Inventor 涂志龙郭兴忠李文彦杨辉
Owner 上海莱乾新能源有限公司
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