Preparation method for photocatalyst TiO2 supporter and manufacturing method for photocatalyst air cleaner

A photocatalyst and photocatalytic technology, applied in separation methods, chemical instruments and methods, catalyst activation/preparation, etc.

Inactive Publication Date: 2012-11-21
李文发
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Preparation method for photocatalyst TiO2 supporter and manufacturing method for photocatalyst air cleaner
  • Preparation method for photocatalyst TiO2 supporter and manufacturing method for photocatalyst air cleaner

Examples

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Embodiment 1

[0018] Using the method of spraying, the aluminum silicate ceramic hollow body (Al 2 o 3 =76%, SiO 2 = 19%, porosity 85%), double-sided spray-coated metal alkyl titanium dioxide (TiO 2 ) coating liquid, after drying at about 100°C for one hour, then firing at 450°C for one hour in a firing furnace to form a film. Then use the same method to form a film again to make a photocatalyst ceramic filter A-1, TiO 2 The amount of spraying is about 60g / m 2 . After making A-1, dip A-1 in the metal alkyl titanium dioxide coating solution, dry it at about 100°C for one hour as described above, and then dry it in a firing furnace at 450°C for one hour Firing to form a film to make a multi-layer photocatalytic photocatalyst ceramic filter A-2.

Embodiment 2

[0020] Using the method of spraying, the aluminum silicate ceramic hollow body (Al 2 o 3 =76%, SiO 2 =19%, porosity 85%) spraying on both sides of 0.85% (solid content) nano-titanium dioxide (TiO 2 ) Neutral aqueous solution sol coating solution, after drying at about 100°C for one hour, it is fired in a firing furnace at 450°C for one hour to form a film. Then, the same method was used to form a film again to make a photocatalyst ceramic filter B-1. TiO 2 The amount of spraying is about 60g / m 2 . After making B-1, mix B-1 with 0.85% (solid content) nano-titanium dioxide (TiO 2 ) Dip coating in a neutral aqueous solution sol coating liquid, after drying at about 100°C for one hour as described above, then firing in a firing furnace at 450°C for one hour to form a film to form a multi-layer photocatalytic Photocatalyst ceramic filter B-2.

Embodiment 3

[0027] Using the method of spraying, in silicon carbide porous ceramics (SiC=67%, Al 2 o 3 =12%, SiO 2 =19%, porosity 85%), the two sides are sprayed with metal alkyl titanium dioxide coating solution, dried at about 100°C for one hour, and fired in a firing furnace at 450°C for one hour to form a film. After that, dip coating is carried out in the metal alkyl titanium dioxide coating solution, and after drying at about 100°C for one hour as described above, it is fired in a firing furnace at 450°C for one hour to form a film to form a photocatalytic Photocatalyst ceramic filter C.

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Abstract

The invention provides a photocatalytic photocatalyst supporter, and a manufacturing method for a photocatalytic photocatalyst air cleaner adopting the supporter as a filter, wherein the photocatalytic photocatalyst supporter has characteristics of fine pores, high film strength, and high activity photoreactivity semiconductor adhesion. According to the photocatalytic photocatalyst supporter, alkyl metal.TiO2 or a nanometer TiO2 sol is subjected to coating, drying, and solidification to form a film on a ceramic porous material of alumina, aluminum silicate, silicon carbide and other fire resistance materials, then firing at a high temperature of 250-700 DEG C is performed to form a finely-porous photocatalyst ceramic film, wherein performing of a lot of laminating is adopted as a characteristic. The anatase crystal TiO2 nanoparticles of the photocatalytic film formed on the surface of the supporter provide antibacterial, odor removing and other purification effects for air or water under an action of light.

Description

[0001] The present invention The present invention relates to a photocatalyst photocatalyst carrier for decomposing and removing odorous substances in the air, as well as harmful volatile substances such as organic toxic TVOC and the like. [0002] The carrier can transform inorganic pollutant gases such as nitrogen oxides and sulfur oxides in the atmosphere into harmless ones and remove them from the air. [0003] Provide photocatalytic photocatalyst TiO 2 The invention discloses a method for manufacturing a photocatalytic photocatalyst air purifier with a filter as a carrier. Background technique [0004] Generally speaking, it is well known that the air purifiers used to remove odorous substances or harmful substances will lose their function once their filter sheets reach the state of adsorption saturation. Moreover, due to the fragility of the material of the filter sheet used, it is also very difficult to wash and regenerate active treatments. [0005] The purification...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/18B01J31/38B01J35/10B01J37/02B01D53/86B01D53/72B01D53/60C04B38/00C04B35/10C04B35/195
Inventor 不公告发明人
Owner 李文发
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