TW201930788A - Air purification apparatus and air purification method - Google Patents

Abstract

An air purification apparatus and an air purification method are described. The air purification apparatus includes an ionization device, a conductive foam material body, and a high voltage generator. The ionization device is configured to charge contaminations in air. The conductive foam material body is adjacent to the ionization device, and is configured to attract the contaminations which have passed through the ionization device. The conductive foam material body includes various holes, and the air flows from a first side of the conductive foam material body to a second side of the conductive foam material body through the holes. The high voltage generator has a first electrode and a second electrode, in which the first electrode and the second electrode are electrically connected to the ionization device and the conductive foam material body respectively to form a voltage difference between the ionization device and the conductive foam material body.

Description

Air purification device and air purification method

The present invention relates to an air purification technique, and more particularly to an air purification apparatus and an air purification method for collecting dust using static electricity.

The impact of indoor air quality on health has become an international concern. About 80% to 90% of the time per person per day is in an indoor environment, including in a home, office or other building. The quality of indoor air quality is directly Affect the quality of life and work efficiency. Contaminants present in the indoor environment include aerosols, odors, volatile and semi-volatile organic substances, formaldehyde, microorganisms, and the like.

The dust collecting plate of a general electrostatic dust collecting device uses a metal plate to collect suspended particles, and a high efficiency particulate air filter (HEPA filter) is used at the back end to filter suspended particles, allergens, and planktonic microorganisms. An adsorbent such as activated carbon or zeolite or a catalyst such as titanium dioxide or zinc oxide is used to adsorb or decompose odor, volatile organic compounds, formaldehyde, and the like in the air. Basically, pathogenic substances with high viability, such as floating viruses, or allergens such as dust mites or pollen, must be processed. Keep these sources and allergens inactivated. However, the filter can only filter harmful bacteria or pathogens, and does not have any treatment for the pollutants and allergens on the filter, so there is no bactericidal function. Moreover, the arrangement of these components makes it difficult to reduce the volume of the air cleaner. In addition, the efficiency of the adsorbent and the catalyst will decrease with the use time, and must be replaced when it reaches saturation, resulting in an increase in the operating cost of the air cleaner and an ineffective air purification treatment.

In addition, the dust collecting plate of the current electrostatic dust collecting device is planar and arranged parallel to the direction of the air flow, so that the suspended particles can easily pass through the short flow or the adjacent dust collecting plate directly with the air flow. Therefore, the collection efficiency of the electrostatic dust collecting device is limited, especially the nano-sized powder which is difficult to capture, and the charged suspended particles on the dust collecting plate may also float out of the electrostatic dust collecting device with the air flow.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an air purifying apparatus and an air purifying method which use a conductive foam metal body to collect dust, sterilize, and decompose volatile organic compounds, thereby greatly reducing the volume of the air purifying apparatus. In addition, the conductive foam metal body is not parallel to the air flow direction of the air, and the porous hole structure of the conductive foam metal body can cause turbulent gas flow. Therefore, the charged contaminants in the air have a very large chance to collide with the conductive foam metal body and adhere to the conductive foam metal body, which is difficult to re-flow.

Another object of the present invention is to provide an air purifying apparatus and an air purifying method which can form a plasma processing zone between the ionizing apparatus and the conductive foam metal body. High energy in the plasma as it passes through the plasma treatment zone The quantitative substance can directly destroy the cell membrane of the microorganism, and the high content active substance in the plasma has the function of surface modification, and can modify the protein of the microorganism, thereby causing the microorganism to be inactivated and achieve the sterilization effect.

A further object of the present invention is to provide an air purifying device and an air purifying method, wherein the conductive foam metal body can be coated with a photocatalyst, and the plasma can provide ultraviolet light to activate the photocatalyst to generate electrons and holes, and these high energies The electrons and holes can initiate a chemical reaction on the surface of the catalyst to achieve a self-cleaning effect. Thereby, the conductive foam metal body can be effectively cleaned. In addition, the surface of the conductive foam metal body may be coated with an adsorbent and/or a catalyst to adsorb volatile organic compounds and decompose the ozone generated by the plasma, and indeed achieve the effect of air purification.

Another object of the present invention is to provide an air purifying device and an air purifying method, wherein the plasma processing region formed can cover at least a partial region of the conductive foam metal body, so that the plasma energy can be destroyed and attached to the photocatalyst/adsorbent. The organic molecules can make the (photo) catalyst/adsorbent achieve the regeneration effect, and restore the adsorption/decomposition efficiency of the metal body attached to the conductive foam, thereby prolonging the service life.

According to the above object of the present invention, an air purifying device is proposed. The air purification device includes an ionization device, a conductive foam body, and a high voltage generator. The ionization device is configured to charge a plurality of contaminants in the air. The conductive foam body is disposed adjacent to the ionization device and configured to adsorb contaminants after passing through the ionization device. The body of electrically conductive foam material comprises a plurality of holes, and air flows from the first side of the body of electrically conductive foam material through the holes from the second side of the body of electrically conductive foam material. The high voltage generator has a first pole and a second pole, The first pole and the second pole are electrically connected to the ionization device and the conductive foam body respectively, so as to have a voltage difference between the ionization device and the conductive foam body.

According to an embodiment of the invention, the material of the conductive foam body comprises metal, specially treated plastic, and/or glass fiber.

According to an embodiment of the invention, the surface of the conductive foam body is provided with a catalyst, and/or an adsorbent.

According to an embodiment of the invention, the conductive foam body is a piece-like structure.

According to an embodiment of the invention, the conductive foam body is a cylindrical structure, and the conductive foam body has an opening, and air enters the opening from the opening of the opening, and the sidewall of the conductive foam body and/or Or the bottom of the conductive foam body flows out through the holes.

According to the above object of the present invention, an air purification method is further proposed. In this method, an air purifying device is provided on the air flow path of the air. The air purification device includes an ionization device, a conductive foam body, and a high voltage generator. The ionization device is disposed on the air flow path. The conductive foam body is disposed adjacent to the ionization device and is located on the air flow path. The body of electrically conductive foam material contains a plurality of holes. The high voltage generator has a first pole and a second pole, wherein the first pole and the second pole are electrically connected to the ionization device and the conductive foam body, respectively. A high voltage generator is used to provide power to provide a voltage difference between the ionization device and the body of electrically conductive foam. The ionization device is used to charge several contaminants in the air. Air is caused to flow from the first side of the conductive foam body through the holes from the second side of the conductive foam body, thereby utilizing the conductive foam body to adsorb the contaminants passing through the ionization device.

According to an embodiment of the invention, when the power supply is provided by the high voltage generator, the plasma processing zone is further formed between the ionizing device and the conductive foam body.

According to an embodiment of the present invention, the above air purification method further comprises utilizing a plasma of a plasma treatment zone to decompose and/or oxidize pollutants in the air, and destroy cell membranes of a plurality of microorganisms in the air and modify the microorganisms. Protein.

According to an embodiment of the invention, the forming of the plasma processing zone comprises: causing the plasma processing zone to cover a partial region of the conductive foam body to utilize the plasma of the plasma processing zone for decomposition and/or oxidation adsorption in the plasma treatment zone. Contaminants on localized areas of the zone, as well as disrupting the cell membrane of microorganisms adsorbed on localized areas of the plasma treatment zone and modifying the proteins of these microorganisms.

According to an embodiment of the present invention, the surface of the conductive foam body is coated with a photocatalyst, and when the plasma of the plasma processing zone is used to decompose and/or oxidize pollutants in the air, the use of the plasma processing zone is further included. The plasma provides ultraviolet light to activate the photocatalyst.

In accordance with an embodiment of the invention, the forming of the plasma processing zone comprises utilizing a corona discharge technique.

According to an embodiment of the present invention, the contaminant comprises a volatile organic substance, and when the plasma processing zone is formed, the ozone is formed, and the surface of the conductive foam material body is coated with an adsorbent and/or a catalyst, and is adsorbed by the conductive foam material. The pollutants after passing through the ionization device further comprise adsorbing volatile organic compounds and decomposing ozone in the plasma treatment zone by using adsorbents and/or catalysts.

100‧‧‧Air purification device

100a‧‧‧Air purification unit

110‧‧‧shell

112‧‧‧ first side

114‧‧‧ second side

120‧‧‧ Air

130‧‧‧Ionization device

132‧‧‧Connecting frame

134‧‧‧Connecting frame

136‧‧‧ ionization components

140‧‧‧conductive foam body

142‧‧‧ holes

144‧‧‧ first side

146‧‧‧ second side

150‧‧‧High voltage generator

152‧‧‧ first pole

152a‧‧‧Wire

154‧‧‧second pole

154a‧‧‧Wire

160‧‧‧conductive foam body

160b‧‧‧ bottom

160h‧‧‧ hole

160s‧‧‧ side wall

162‧‧‧ openings

162a‧‧‧ openings

170‧‧‧Ionization device

172‧‧‧Connecting frame

174‧‧‧ ionizing components

180‧‧‧High voltage generator

182‧‧‧ first pole

182a‧‧‧Wire

184‧‧‧second pole

184a‧‧‧Wire

200‧‧‧ steps

210‧‧‧Steps

220‧‧‧Steps

230‧‧‧Steps

The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 2 is a schematic view showing an apparatus of an air purifying apparatus according to an embodiment of the present invention; and FIG. 3 is a flow chart showing an air purifying method according to an embodiment of the present invention.

Please refer to FIG. 1 , which is a schematic diagram of an apparatus of an air purifying apparatus according to an embodiment of the present invention. The air cleaning device 100 can be installed in the housing 110. For example, the housing 110 may be an outer casing of an air conditioner such as cold air or an air cleaning device. The air purifying device 100 is preferably disposed on the path of the airflow out of the air conditioner or the air purifying device to purify the air before the gas is blown out from the device.

The housing 110 has a first side 112 and a second side 114 on opposite sides. The air 120 can enter the housing 110 from the first side 112 of the housing 110, and then exit the second side 114 of the housing 110 via the air purification device 100 within the housing 110. That is, the air purifying device 100 is disposed in a path through which the airflow of the air 120 passes to adsorb contaminants and microorganisms in the air 120 when the air flows, and may even adsorb odors in the air 120. In air 120 Contaminants may, for example, comprise microparticles, pollen or organic matter, such as volatile organic compounds (VOCs) that are harmful to humans. The microorganism may, for example, contain bacteria, viruses, dust mites, and the like.

In some embodiments, the air purification device 100 primarily includes an ionization device 130, a conductive foam body 140, and a high voltage generator 150. In some exemplary examples, the ionization device 130 can include connection brackets 132 and 134, and a plurality of ionization elements 136. The ionizing element 136 can be a strip-like structure, and the opposite ends of each of the ionizing elements 136 are respectively fixed on the connecting frames 132 and 134, and the ionizing device 130 has a grid-like structure. The ionization device 130 is configured to provide a contaminant charge in the air 120 to charge the contaminants.

The conductive foam body 140 is disposed adjacent to one side of the ionization device 130, and the conductive foam material body 140 is located downstream of the ionization device 130 in the flow direction of the air 120. The conductive foam body 140 can utilize Coulomb forces to adsorb contaminants that are charged after passing through the ionization device 130. In some examples, as shown in FIG. 1, the electrically conductive foam body 140 is a piece-like structure, such as a rectangular block structure. The electrically conductive foam body 140 includes a plurality of holes 142 that are bonded to each other to form a plurality of gas flow paths in the electrically conductive foam body 140. The electrically conductive foam body 140 has a first side 144 and a second side 146 opposite thereto. In some embodiments, the air 120 enters the conductive foam body 140 from the first side 144 of the conductive foam body 140, and exits from the second side 146 of the conductive foam body 140 via the aperture 142 of the conductive foam body 140. In some examples, air 120 enters conductive foam body 140 from first side 144 of electrically conductive foam body 140, via aperture 142 of electrically conductive foam body 140, and from second side 146 of electrically conductive foam body 140 It exits sideways and is not limited to flowing only from the second side 146 opposite the first side 144.

For example, the material of the conductive foam body 140 may comprise metal, plastic, and/or fiberglass, wherein the plastic may be a specially treated plastic such as a conductive plastic. In some examples, the surface of the electrically conductive foam body 140 can be coated with a catalyst and/or an adsorbent, wherein the catalyst or adsorbent can adsorb volatile organic compounds in the air 120. In some exemplary examples, the surface of the electrically conductive foam body 140 may be coated with a photocatalyst.

The high voltage generator 150 has a first pole 152 and a second pole 154. The first pole 152 and the second pole 154 have different potentials. In some examples, the potential of the first pole 152 of the high voltage generator 150 is relatively high, while the potential of the second pole 154 is lower than the first pole 152. For example, the second pole 154 is grounded to have a ground potential. In other examples, the potential of the first pole 152 is relatively low, while the potential of the second pole 154 is higher than the first pole 152. The first pole 152 and the second pole 154 can be electrically connected to the ionizing device 130 and the conductive foam body 140, for example, through the wires 152a and 154a, respectively. The high voltage generator 150 can provide a power source with a voltage difference between the ionization device 130 and the conductive foam body 140.

Through the power supply to the high voltage generator 150, the ionization device 130 can provide contaminant charges in the air 120 that pass through, thereby charging the contaminants. The high voltage generator 150 also causes the electrically conductive foam body 140 to carry a charge different from the contaminants. Thereby, the conductive foam body 140 can capture the charged contaminants in the air 120 by the potential difference, and the porous hole structure of the conductive foam body 140 can cause the air 120 to turbulently flow, so that the air 120 is contaminated. The hard-to-capture fine particles have a greater chance of colliding with the conductive foam body 140, thereby greatly increasing the pollutant capture efficiency of the conductive foam body 140.

In some exemplary examples, by adjusting the voltage difference between the ionization device 130 and the conductive foam body 140, a plasma may be generated between the ionization device 130 and the conductive foam body 140 to form a plasma processing zone. For example, the plasma form in the plasma processing zone can be a corona discharge. In some particular examples, the plasma processing zone may include at least a partial region of the electrically conductive foam body 140 in addition to being located between the ionizing device 130 and the electrically conductive foam body 140.

The high-energy substance in the plasma can directly destroy the cell membrane of the microorganism, and can modify the protein of the microorganism, thereby inactivating the microorganism, thereby achieving the sterilization effect. The plasma can also decompose and oxidize contaminants, such as decomposing and oxidizing organic molecules in the contaminants, thereby eliminating the odor caused by the organic molecules and achieving the deodorizing effect. In addition, since the plasma processing region covers at least a partial region of the conductive foam body 140, the plasma can also sterilize and deodorize the conductive foam body 140, thereby causing the conductive foam body 140 to regenerate, thereby being effective. Extending the useful life of the electrically conductive foam body 140.

The structure of the electrically conductive foam body of the present invention may not be limited to the above embodiment. Please refer to FIG. 2, which is a schematic diagram of an apparatus of an air purifying apparatus according to an embodiment of the present invention. In some embodiments, the air purification device 100a primarily includes a conductive foam body 160, an ionization device 170, and a high voltage generator 180. In some exemplary examples, the ionization device 170 can include a connector 172 and a plurality of ionization elements 174. The ionization element 174 can be a strip structure, and one end of each ionization element 174 is fixedly connected On the shelf 172. The ionization device 170 can provide a contaminant charge in the air 120 to charge the contaminants.

The conductive foam body 160 is disposed adjacent to one side of the ionization device 170, and the conductive foam material body 160 is located downstream of the ionization device 170 in the flow direction of the air 120. In this embodiment, the conductive foam material body 160 is the same material as the conductive foam material body 140 of the above embodiment, and the difference between the two is that the conductive foam material body 160 is a cylindrical structure. Therefore, the conductive foam body 160 also has a plurality of holes 160h.

The electrically conductive foam body 160 can have an opening 162 having an opening 162a. The aperture 162 extends in the body of electrically conductive foam material 160 but does not extend through the body 160 of electrically conductive foam material. Thus, the electrically conductive foam body 160 has side walls 160s and a bottom portion 160b. The ionization element 174 of the ionization device 170 is placed within the opening 162 of the electrically conductive foam body 160. The ionization element 174 is not in contact with the conductive foam body 160. The bottom portion 160b of the body of the electrically foamed material 160 may be provided with an insulating layer (not shown). The other end of the ionizing member 174 away from the connecting frame 172 may abut against the insulating layer and be separated from the conductive foam body 160 by the insulating layer.

The high voltage generator 180 has a first pole 182 and a second pole 184. The first pole 182 and the second pole 184 have different potentials. The potential design of the first pole 182 and the second pole 184 of the high voltage generator 180 can be similar to the high voltage generator 150 of the above embodiment, and thus will not be described herein. The first pole 182 and the second pole 184 are electrically connected to the ionizing device 170 and the conductive foam body 160 through the wires 182a and 184a, respectively. The high voltage generator 180 can provide a power source with a voltage between the ionization device 170 and the conductive foam body 160 difference. Through the power supply to the high voltage generator 180, the ionization device 170 can provide contaminant charge through the air 120, thereby charging the contaminants and causing the electrically conductive foam body 160 to carry a charge different from the contaminants. Thereby, the conductive foam body 160 can capture the charged contaminants in the air 120 by the potential difference.

Similarly, the voltage difference between the ionization device 170 and the conductive foam body 160 can be adjusted to create a plasma between the ionization device 170 and the conductive foam body 160 to form a plasma processing zone. The plasma form in the plasma processing zone can be a corona discharge. The air 120 can be sterilized and deodorized in the plasma. The plasma processing zone may cover at least a partial region of the conductive foam body 160 to sterilize and deodorize the conductive foam body 160 with the plasma, thereby causing the conductive foam body 160 to produce a regenerative effect.

When the air 120 enters the opening 162 from the opening 162a of the opening 162, the ionizing element 174 located in the opening 162 can charge the contaminants in the air 120, and the air 120 can be processed from the conductive foam after passing through the ionizing device 170. The sidewalls 160s and/or the bottom portion 160b of the body 160 exit the conductive foam body 160 via the holes 160h of the conductive foam body 160. During passage of air 120 through conductive foam body 160, conductive foam body 160 can adsorb contaminants in the air.

Please refer to FIG. 1 and FIG. 3 simultaneously, wherein FIG. 3 is a flow chart showing an air purification method according to an embodiment of the present invention. In this embodiment, the air purifying apparatus 100 of FIG. 1 is used to describe the air purifying method, but the air purifying apparatus 100a of FIG. 2 may be used for the air purifying process. In some embodiments, when performing air purification, step 200 may be performed first. The air purifying device 100 as shown in FIG. 1 is placed on the air flow path of the air 120. The air purification device 100 can include an ionization device 130, a conductive foam body 140, and a high voltage generator 150. In some exemplary embodiments, the ionization device 130 and the conductive foam body 140 of the air cleaning device 100 are both located in the air flow path of the air 120, and the conductive foam material body 140 may be adjacent to the ionization device 130. The ionizing device 130 and the conductive foam body 140 can be electrically connected to the first pole 152 and the second pole 154 of the high voltage generator 150 through the wires 152a and 154a, respectively.

Next, step 210 is performed to provide power using the high voltage generator 150 to provide a voltage difference between the ionization device 130 and the conductive foam body 140. Step 220 is then performed to provide contaminant charge in the passing air 120 by the ionization device 130 under the power supply of the high voltage generator 150, thereby charging the contaminants. The electrically conductive foam body 140 has a different electrical potential than the charged contaminants when the high voltage generator 150 is powered.

In some embodiments, when the power is supplied by the high voltage generator 150, the discharge reaction between the ionization device 130 and the conductive foam body 140 forms a plasma, and is formed between the ionization device 130 and the conductive foam body 140. Plasma treatment area. When the air 120 passes through the plasma processing zone, the plasma of the plasma processing zone can be utilized to decompose and/or oxidize contaminants in the air 120, such as organic molecules, thereby eliminating odors caused by organic molecules. Moreover, the high-energy substance in the plasma can be used to destroy the cell membrane of the microorganism in the air 120, and the protein of the microorganism can be modified to inactivate the microorganism, thereby achieving the sterilization effect.

In some instances, the plasma processing zone may be formed to at least encompass a localized area of the electrically conductive foam body 140 when the plasma processing zone is formed. By this design, the plasma can be utilized to decompose and/or oxidize the contaminants attached to the conductive foam body 140, and utilize the high-energy substances in the plasma to destroy the microbial cell membrane of the air 120 and the protein of the modified microorganism. To inactivate microorganisms. The sterilization and deodorization treatment of the conductive foam material body 140 by the plasma can regenerate the conductive foam material body 140, thereby effectively extending the service life of the conductive foam material body 140.

In some examples, the photocatalyst may be coated on the surface of the conductive foam body 140. Since the plasma can emit ultraviolet light, the ultraviolet light provided by the plasma can be utilized to activate the photocatalyst on the surface of the conductive foam body 140. When the photocatalyst is irradiated with high-energy light, electrons and holes can be generated. These high-energy electrons and holes can initiate a chemical reaction on the surface of the catalyst to achieve self-cleaning effect. Therefore, the dust removal and purification effect of the conductive foam body 140 can be effectively improved by utilizing the characteristics of the photocatalyst material and the purification function of the plasma itself.

By-product ozone is generated when plasma is generated. Thus, in some examples, an adsorbent and/or a catalyst may be applied to the surface of the electrically conductive foam body 140. The adsorbent and/or catalyst can adsorb volatile organic compounds in the contaminants of the air 120 and can decompose the ozone in the plasma treatment zone. Therefore, the application of this method does not require additional adsorption elements to adsorb ozone.

Next, step 230 is performed to allow the air 120 passing through the ionization device 130 to flow from the first side 144 of the conductive foam body 140 through the holes 142 from the second side 146 of the conductive foam body 140, thereby utilizing the conductive foam material. The body 140 is adsorbed by the Coulomb force through the ionization device 130 Charged pollutants. During the passage of the air 120 through the conductive foam body 140, the porous cavity structure of the conductive foam body 140 can cause turbulent flow of the air 120, thereby greatly increasing the chance that fine particles in the contaminants of the air 120 collide with the conductive foam body 140, The contaminant capture efficiency of the conductive foam body 140 can be improved.

It is apparent from the above-described embodiments that an embodiment of the present invention uses a conductive foam metal body to collect dust, sterilize, and decompose volatile organic compounds, thereby greatly reducing the volume of the air purifying device. In addition, the conductive foam metal body is not parallel to the air flow direction of the air, and the porous hole structure of the conductive foam metal body can cause turbulent gas flow. Therefore, the charged contaminants in the air have a very large chance to collide with the conductive foam metal body and adhere to the conductive foam metal body, which is difficult to re-flow.

It will be apparent from the above-described embodiments that another embodiment of the present invention is that a plasma processing zone can be formed between the ionizing device and the conductive metal foam body because of embodiments of the present invention. When the pollutant passes through the plasma treatment zone, the high-energy substance in the plasma directly destroys the cell membrane of the microorganism, and the high-level active substance in the plasma has a surface modification function, which can modify the protein of the microorganism, thereby causing microbial loss. Live to achieve a bactericidal effect.

It can be seen from the above embodiments that another advantage of the present invention is that the plasma processing region formed by the embodiment of the present invention can cover at least a partial region of the conductive metal foam body, so that the plasma energy can destroy the adhesion to the conductive foam metal body. The organic molecules on the surface can make the conductive foam metal body achieve the regeneration effect, restore the adsorption efficiency of the conductive foam metal body, and further prolong the service life of the conductive foam metal body.

According to the above embodiments, another advantage of the present invention is that the conductive foam metal body of the embodiment of the present invention can be coated with a photocatalyst, and the plasma can provide ultraviolet light to activate the photocatalyst to generate electrons and holes, and electrons. The hole can be excited by a chemical reaction on the surface of the catalyst to achieve self-cleaning effect. Thereby, the conductive foam metal body can be effectively cleaned. In addition, the surface of the conductive foam metal body may be coated with an adsorbent and/or a catalyst to adsorb volatile organic compounds and decompose the ozone generated by the plasma, and indeed achieve the effect of air purification.

While the present invention has been described above by way of example, it is not intended to be construed as a limitation of the scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

Claims (12)

An air purifying device comprising: an ionizing device configured to charge a plurality of pollutants in the air; a conductive foam body disposed adjacent to the ionizing device and configured to adsorb through the ionizing device a contaminant, wherein the electrically conductive foam body comprises a plurality of holes, and the air flows from the first side of the electrically conductive foam body through the holes from a second side of the electrically conductive foam body; and a high The voltage generator has a first pole and a second pole, wherein the first pole and the second pole are electrically connected to the ionizing device and the conductive foam body respectively, thereby the ionizing device and the conductive foam There is a voltage difference between the material bodies. The air purifying device of claim 1, wherein the material of the conductive foam body comprises metal, plastic, and/or glass fiber. The air purifying device of claim 1, wherein the surface of the conductive foam body is coated with a catalyst, and/or an adsorbent. The air purifying device of claim 1, wherein the conductive foam body is a block structure. The air purifying device of claim 1, wherein the conductive foam body is a cylindrical structure, the conductive foam body has an opening, and the air opens into the opening from one of the openings, and The conductive foam body flows out from the sidewalls and/or a bottom of one of the conductive foam bodies via the holes. An air purification method includes: providing an air purification device on a flow path of air, wherein the air purification device comprises: an ionization device disposed on the air flow path; and a conductive foam material body adjacent to the air separation device The device is located on the airflow path, wherein the conductive foam body comprises a plurality of holes; and a high voltage generator having a first pole and a second pole, wherein the first pole and the second pole are respectively Electrically connecting the ionizing device and the conductive foam body; using the high voltage generator to provide a power source, thereby causing a voltage difference between the ionizing device and the conductive foam body; using the ionizing device to make the air Passing a plurality of contaminants; and causing the air to flow from the first side of the conductive foam body through the holes from a second side of the conductive foam body, thereby utilizing the conductive foam body to pass through The pollutants after the ionization device. The air purification method of claim 6, wherein the power supply is further provided by the high voltage generator to form a plasma processing zone between the ionization device and the conductive foam body. The air purification method of claim 7, further comprising using the plasma of the plasma treatment zone to decompose and/or oxidize the pollutants in the air, and destroying a cell membrane of a plurality of microorganisms in the air and Modify the proteins of these microorganisms. The air purification method of claim 8, wherein forming the plasma processing zone comprises causing the plasma processing zone to cover a partial region of the conductive foam body to utilize the plasma of the plasma processing zone to decompose And/or oxidizing the contaminant on the localized region of the plasma treatment zone and destroying the cell membrane of the microorganisms adsorbed on the localized region of the plasma treatment zone and modifying the proteins of the microorganisms. The air purification method of claim 8, wherein the surface of the conductive foam body is coated with a photocatalyst, and when the plasma of the plasma treatment zone is used to decompose and/or oxidize the contaminants in the air, Further comprising using the plasma of the plasma processing zone to provide ultraviolet light to activate the photocatalyst. The air purification method of claim 7, wherein forming the plasma treatment zone comprises utilizing a corona discharge technique. The air purification method of claim 7, wherein the pollutants comprise a volatile organic substance, and when the plasma processing zone is formed, the ozone is formed, and the surface of the conductive foam body is coated with an adsorbent and/or a The catalyst, by using the conductive foam body to adsorb the pollutants passing through the ionizing device, further comprises adsorbing the volatile organic matter and decomposing the ozone in the plasma processing region by using the adsorbent and/or the catalyst.