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Photocatalytic cellular activated carbon net

A technology of honeycomb activated carbon network and honeycomb activated carbon, which is applied in the field of photocatalytic honeycomb activated carbon network and preparation, can solve the problems that have not been seen in patents or literature reports, and achieve the effect of reducing photocatalytic cost, improving function and improving photocatalytic efficiency

Active Publication Date: 2015-04-29
JIANGSU GAOCHUN CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The above reports relate to the preparation method of honeycomb activated carbon network, the preparation method of doped photocatalyst, and the process of loading the catalyst on the honeycomb activated carbon, but no patent or literature report with the same content as the present invention has been seen yet.

Method used

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  • Photocatalytic cellular activated carbon net

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preparation example Construction

[0019] Preparation of coal-based honeycomb activated carbon network

[0020] (1) The raw material composition is: coal powder: inorganic filler: low-temperature binder: high-temperature binder: lubricant: water mass ratio is 45-65: 2-15: 1-4: 10-20: 2-3 : 10-15, the inorganic filler is kaolin, attapulgite, clay, medical stone or sepiolite or any combination of two or more; the low-temperature binder is methyl cellulose, hydroxypropyl methyl cellulose one or more of carboxymethyl cellulose; the high-temperature binder is one or more of coal tar, sodium dihydrogen phosphate or aluminum dihydrogen phosphate; the pitch of coal tar The content is greater than 35%, and the lubricant is edible oil or polyethylene glycol; all non-water-soluble solid raw materials are crushed to more than 200 mesh;

[0021] (2) Mixing and kneading of raw materials: Add coal powder, inorganic filler and low-temperature binder into the mixer and stir for 10 to 30 minutes. The obtained uniform dry materi...

Embodiment 1

[0032] 1. (1) The raw material and its composition are: coal powder: inorganic filler: low-temperature binder: high-temperature binder: lubricant: water with a mass ratio of 45-65: 2-15: 1-4: 10-20 : 2~3: 10~15, wherein the coal powder is a mixture of bituminous coal and anthracite powder at a ratio of 1:0.2~0.8, and the inorganic filler is kaolin, or attapulgite, or clay, or medical stone, or sepiolite One or two or more are mixed at will; the low-temperature binder is methyl cellulose, or hydroxypropyl methyl cellulose, or one or two or more of carboxymethyl cellulose are mixed arbitrarily; the high-temperature binder is Coal tar, or sodium dihydrogen phosphate, or one or more of aluminum dihydrogen phosphate in any mixture; the pitch content of coal tar is more than 35%, and the lubricant is edible oil or polyethylene glycol; all non-water-soluble solids The fineness of the raw materials is crushed to more than 200 mesh.

[0033] (2) Mixing and kneading of raw materials: A...

Embodiment 2

[0055] 1. Preparation of coal-based honeycomb activated carbon network

[0056] (1) Raw material pretreatment: 7200g of coal powder (6000g of bituminous coal + 1200g of anthracite, both above 200 mesh), 200g of clay (above 200 mesh), 300g of hydroxypropyl methylcellulose, and 250g of polyethylene glycol are added to the mixer, Stir thoroughly for 30 minutes, then add 2000g of coal tar (the pitch content is greater than 35%) and 1160ml of water, and stir and knead for 25 minutes. Then put it in a vacuum mud refining machine, keep the vacuum at -0.08MPa, pump out the air in the mud, and practice for 25 minutes to make the mud mix evenly. Then wrap the mud with a plastic film, seal it and put it aside for 12 hours to obtain uniform plastic mud.

[0057] (2) Extrusion molding and drying: add the stale mud to the extrusion molding machine equipped with honeycomb steel mold, extrude at a pressure of 15MPa to obtain a honeycomb wet embryo body, the size is 220mm×110mm×15mm, the hole...

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Abstract

The invention discloses a photocatalytic cellular activated carbon net. A cellular activated carbon net is used as a carrier; Co, Pr, S and TiO2 in mole ratio of (0.01-0.03): (0.005-0.015): (0.5-2.0): (0.9-1.2) are loaded on the cellular activated carbon net. According to the photocatalytic cellular activated carbon net, the function of adsorbing organic pollutants by activated carbon is kept and the capability of degrading organic pollutants through response to visible light by catalyst is provided. The photocatalytic cellular activated carbon net has a straight-hole net structure and is good in air permeability and light permeability; the specific surface area is 750-1050 m<2> / g; the iodine sorption value is 900-1100 mg / g; the carbon tetrachloride adsorption rate is 40-60%. In a 30 cm<3> enclosed space, visible light is used as a light source; after 50 min, the formaldehyde removal rate is 95.6-98.7%, the methylbenzene removal rate is 90.3-93.6% and the ammonia removal rate is 92.8-96.0%.

Description

technical field [0001] The invention relates to a photocatalytic honeycomb activated carbon net and a preparation method, especially a honeycomb activated carbon net carrier and a TiO doped 2 Preparation of photocatalyst and method of loading catalyst on carrier. Background technique [0002] As an excellent adsorbent, activated carbon has been widely used to control air and water pollution, and granular activated carbon and powdered activated carbon are commonly used. The coal-based honeycomb activated carbon developed in recent years has the advantages of large specific surface area and strong adsorption performance, and is highly valued in the market. Although it has many advantages, it is easy to be saturated, the cost of use is high, and it is difficult to return to the original level even through regeneration. [0003] with TiO 2 As a photocatalyst, under the action of ultraviolet light, almost all pollutants can be photodecomposed into harmless substances, and the ...

Claims

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Application Information

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IPC IPC(8): B01J27/043B01J35/04B01D53/86B01D53/44C02F1/28C02F1/30
Inventor 许升孔德双谷昌军刘志斌孔令仁
Owner JIANGSU GAOCHUN CERAMICS
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