KR20140143992A - Device and method for deodorization and disinfaction using photo catalyst - Google Patents

Abstract

Disclosed are an apparatus and method for deodorization and disinfection using a photo-catalyst, wherein the apparatus has excellent deodorizing and disinfecting performances even using a light source emitting UV wavelengths with weak intensity; has continuous durability in various environments; and actively advances a photo-catalytic reaction even without a separate light source. The apparatus for deodorization and disinfection using a photo-catalyst comprises a photo-catalyst formed of nanoparticulate titanium oxide, and a coating layer formed by coating the photo-catalyst on at least one of an outer wall and an inner wall of a building, tiles, and metal and ceramic having a particular shape. Meanwhile, the method for deodorization and disinfection using a photo-catalyst is performed by burning and drying titanium oxide into particles with a size of 10-60 nm, and then adding a basic cocatayst to process the particles into a liquid phase, followed by secondary process depending on the use. Therefore, the apparatus has excellent deodorizing and disinfecting performances even using a light source emitting UV wavelengths with weak intensity; has continuous durability in various environments; and actively advances a photo-catalytic reaction even without a separate light source.

Description

TECHNICAL FIELD [0001] The present invention relates to a deodorizing and sterilizing apparatus using a photocatalyst,

The present invention relates to a deodorizing and sterilizing apparatus and method using a photocatalyst, and more particularly, to a deodorizing and sterilizing apparatus and method using a photocatalyst for removing odors and various bacteria contained in air by using a photocatalyst such as titanium oxide .

Korean Patent Laid-Open Publication No. 2013-0024642 (Mar. 03, 2013), which is filed on the same date, discloses an apparatus for increasing the effect of reflection and heating so as to swirl a flow path of air so that the catalyst can more effectively deodorize the odor.

1 is a configuration diagram showing a conventional deodorizing apparatus. As shown in Fig. 1, the conventional deodorizing device has an intake fan 2 at one end of the case 1 and an exhaust port 3 at the other end. A black light 4 as an excitation light source passes through the center axis of the case 1 and the wavelength of the black light 4 is 200 nm to 40 nm so that an ultraviolet lamp or a chemical lamp can be used. The reflector 5 is arranged at an angle of 45 DEG to the black light 4 on both end faces of the sides of each side of the photocatalytic filter 6. [

However, in the conventional deodorizing apparatus, when a light source exhibiting a weak intensity of ultraviolet light is used, the deodorizing effect is lowered, and the deodorizing effect can be applied only in a specific environment, And the like.

Patent Document: Korean Patent Laid-Open Publication No. 2013-0024642 (March 31, 2013)

In order to solve such conventional problems, the present invention provides a photocatalytic reaction which is excellent in deodorizing and sterilizing ability even when using a light source having a weak intensity of ultraviolet wavelength, has continuous durability in various environments, The present invention provides a deodorizing and sterilizing apparatus and method using a photocatalyst.

The deodorizing and sterilizing apparatus using the photocatalyst according to the present invention is a deodorizing and sterilizing apparatus using a photocatalyst formed by forming titanium oxide into nanoparticles and coating the photocatalyst on at least one of outer wall, inner wall, tile, .

According to another aspect of the present invention, there is provided a deodorizing and sterilizing apparatus using a photocatalyst, comprising: a box-shaped body having a space formed therein; a photocatalyst provided inside the body, the photocatalyst being formed by making titanium oxide nanoparticles; And a blowing fan disposed inside the main body for blowing air into and out of the main body.

Meanwhile, the deodorization and sterilization method using the photocatalyst according to the present invention is characterized in that the titanium oxide is calcined and dried to be granulated to a size of 10 nm to 60 nm, and the crude catalyst of the basic component is added and processed into a liquid phase. Is processed by cold working.

The deodorizing and sterilizing apparatus and method using the photocatalyst according to the present invention are excellent in deodorizing and sterilizing ability even by using a light source having a weak intensity of ultraviolet wavelength and have continuous durability in various environments and even when there is no separate light source, It is a very useful invention that is actively done.

FIG. 1 is a view showing a conventional deodorizing apparatus,
2 is an exploded perspective view illustrating a deodorizing and sterilizing apparatus using a photocatalyst according to an embodiment of the present invention,
3 is a flowchart illustrating a deodorization and sterilization method using a photocatalyst according to an embodiment of the present invention.

Hereinafter, the technical construction of a deodorizing and sterilizing apparatus and method using a photocatalyst will be described in detail with reference to the accompanying drawings.

A deodorizing and sterilizing apparatus using a photocatalyst according to the present invention comprises a photocatalyst formed by making titanium oxide into nanoparticles and a coating layer formed by coating the photocatalyst on at least one of outer wall, inner wall, tile, and metal having a specific shape Structure.

In other words, the deodorization and sterilization apparatus using a photocatalyst causes titanium oxide to generate ultraviolet radiation of ultraviolet rays of 375 nm or less and generate oxygen radicals, and these oxygen radicals decompose organic substances into safe water and carbon dioxide.

The photocatalyst is a nanoparticle of titanium oxide, which generates a large amount of oxygen radicals even when a light source exhibiting a weak ultraviolet wavelength is used. The photocatalyst is excellent in the ability to decompose organic matters and can be applied to outer walls, inner walls and tiles of buildings Do. In addition, the titanium oxide formed by the nanoparticle technology has semi-permanent characteristics, and has durability and stability in the environment.

In addition, the photocatalyst may be formed of a metal-coated structure, and the photocatalyst can be transformed into a free form and thus can be mounted on various structures. In addition, a large amount of oxygen radicals can be applied not only to organic matters but also to various fields such as odor and bacteria.

The photocatalyst can be formed in a coating form on a ceramic, and the strength of the photocatalyst becomes very strong. Due to the characteristics of the ceramic material, the amount of photocatalyst supported on the nanoparticle is very high, so that the amount of the photocatalyst per unit area can be increased.

2 is an exploded perspective view showing a deodorizing and sterilizing apparatus using a photocatalyst according to an embodiment of the present invention.

2, a deodorizing and sterilizing apparatus using a photocatalyst according to an embodiment of the present invention includes a body 10, a photocatalyst 40, a light source 30, and a blowing fan 20 .

The main body 10 (50) constitutes a cover of the apparatus, and is composed of an upper body 10 and a lower body 50. The upper body 10 and the lower body 50 are coupled to each other to form a box shape, thereby forming a predetermined space portion therein.

The photocatalyst 40 is provided inside the main body 10 (50) and is formed by making titanium oxide into nanoparticles. The titanium oxide has a surface area of 330 m < 2 > / g or more and a particle size of 10 nm to 60 nm. The photocatalyst 40 is liquefied by adding a co-catalyst and a basic additive.

The light source unit 30 is provided inside the main body 10 (50) and acts to irradiate the light source to the photocatalyst 40 side.

The air blowing fan 20 is provided inside the main body 10 and 50 and functions to circulate air into and out of the main body 10 and 50.

3 is a flowchart illustrating a deodorization and sterilization method using a photocatalyst according to an embodiment of the present invention.

3, the deodorization and sterilization method using a photocatalyst according to an embodiment of the present invention is characterized in that titanium oxide is fired and dried to be granulated to a size of 10 nm to 60 nm, and a basic component of a basic component is added, After that, it is processed by secondary processing according to the use purpose.

In this case, the secondary processing may be adopted in one of the following two methods: spraying into spray form, coating with wallpaper or tile, and coating with a ceramic carrier of mesh structure.

In summary, the nanoparticulate titanium oxide has a surface area of 330 m 2 / g or more, and the number of particles that receive light energy per unit area is much higher than that of general titanium oxide, thereby increasing the amount of oxygen radicals generated. One liquid photocatalyst can be sprayed into the wallpaper, sprayed on the wallpaper, or applied to the wallpaper or tile by applying liquid.

In addition, a photocatalyst coated with liquefied titanium oxide and a light source can be manufactured in module form as shown in FIG. 2, so that it can be used as an air purifier for indoor air purification, and also as a product for deodorization in a refrigerator.

The titanium oxide of the liquid nanoparticles used in the photocatalyst can increase the supporting force and the fixing ability of the carrier by adding alumina as a cocatalyst, thereby increasing the loading of the ceramic carrier.

The titanium oxide used as the photocatalyst is calcined at a high temperature and calcined and dried at a room temperature to be granulated, then subjected to liquid processing and then subjected to secondary processing. Thus, a photocatalyst used for spraying, wallpaper, and tile uses a sunlight The photocatalyst used in the coating is equipped with a separate light source so that the photocatalytic radical generation reaction is actively performed.

Although the deodorizing and sterilizing apparatus and method using the photocatalyst according to the present invention have been described with reference to the embodiments shown in the drawings, it is to be understood that the invention is not limited thereto and various modifications and equivalent embodiments may be made by those skilled in the art I will understand the point. Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.

10: upper body 50: lower body
20: a blowing fan 30: a light source
40: Photocatalyst

Claims (5)

Wherein the photocatalyst is formed by coating a photocatalyst formed by making titanium oxide into nanoparticles and coating the photocatalyst on at least one of an outer wall and an inner wall of a building, a tile, a metal having a specific shape, or a ceramic. And a sterilizing device. A box-shaped body 10 (50) having a space formed therein;
A photocatalyst 40 provided inside the main body 10 (50) and formed of nano-particles of titanium oxide;
A light source unit 30 provided in the main body 10 and 50 to irradiate a light source toward the photocatalyst 40; And
And a blowing fan (20) provided inside the main body (10) (50) for circulating air into and out of the main body (10) (50) . 3. The method according to claim 1 or 2,
Wherein the titanium oxide has a surface area of 330 m < 2 > / g or more and a particle size of 10 nm to 60 nm, and the photocatalyst is liquefied by adding a cocatalyst comprising alumina and a basic additive. Characterized in that titanium oxide is fired and dried to be granulated to a size of 10 nm to 60 nm and then added with a cocatalyst of a basic component to be processed into a liquid phase and then subjected to secondary processing in accordance with the intended use to deodorize and sterilize Way. 5. The method of claim 4,
Wherein the secondary processing is adopted in one of the following two methods: spraying into a spray form, coating with a wallpaper or a tile, and coating with a mesh-type ceramic carrier. Sterilization method.

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