CN103084062A - Device for purifying air and keeping freshness - Google Patents
Device for purifying air and keeping freshness Download PDFInfo
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- CN103084062A CN103084062A CN2013100324824A CN201310032482A CN103084062A CN 103084062 A CN103084062 A CN 103084062A CN 2013100324824 A CN2013100324824 A CN 2013100324824A CN 201310032482 A CN201310032482 A CN 201310032482A CN 103084062 A CN103084062 A CN 103084062A
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Abstract
The invention discloses a device for purifying air and keeping freshness. The device for purifying air and keeping freshness comprises an air blower device, a light source, a photocatalytic degradation device and an outer shell, wherein the air blower device, the light source and the photocatalytic degradation device are all fixed on the outer shell; the photocatalytic degradation deivce is arranged on one side of the light source; the air blower device is arranged at the other side of the light source; and through holes are formed in the outer shell. The device improves the photocatalytic efficiency, and especially takes an LED (light emitting diode) light source as a light irradiation condition, so the photocatalytic efficiency is improved by 8-10 times in industrial and commercial circles, and is improved by 16-20 times compared with the efficiency of adsorbing formaldehyde by carbon; and the device can kill floras on surfaces of objects in enclosed spaces, stores food at normal temperature, and also is energy-saving and environment-friendly, and is safe and practical.
Description
Technical field
The present invention relates to a kind of purifying air and preservation device, particularly a kind of energy is removed airborne harmful substance and food preservation unit thereof.
Background technology
TiO
2As a kind of important semi-conducting material, and its can only absorbing wavelength less than the ultraviolet light of 387nm, photocatalysis efficiency is very low under daylight.With the three-dimensional grapheme material that makes by hydro-thermal method and TiO
2After compound, can fast transfer TiO
2Photo-generated carrier through the illumination generation.
Nano-TiO
2Have the not available specific physical of traditional material, chemical characteristic, its chemical stability is high, nontoxic pollution-free has that particle size is little, specific area is large, the surface can high, with and distinctive three large effects: skin effect, small-size effect and macro quanta tunnel effect.
The three-dimensional grapheme material, the Graphene that structurally is different from two dimension, the two dimension Graphene is easily reunited, be difficult to obtain the material of high-specific surface area difficult the dispersion, and it has the three-dimensional hollow porous network structure, the net wall is Graphene, be the graphite of layer structure and the graphitic carbon foam of porous, have the advantages such as extremely-low density surface area, high heat conduction, high temperature resistant, corrosion-resistant, ductility, pliability be good, single-layer and transparent and quality are higher.
People more and more pay attention to air quality indexes and food security, in order to remove in air the harmful organic substance such as formaldehyde and to extend the food fresh keeping phase, someone proposes to use the carbon absorbing formaldehyde, improves air quality, extends the food fresh keeping phase with the method for packing technique and refrigeration.Because it is many that the design feature of active carbon is hole, have very strong absorption affinity, a lot of box respirators have utilized these characteristics of active carbon to make.Preferably select the smaller active carbon of particle, the less adsorption effect of particle is better.But charcoal absorption formaldehyde can only adsorb, and can not decompose, and formaldehyde still is present in air, can not allow its thorough disappearance, and the time of the sustainable use of active carbon is very short.
In addition, in food, the common practice of fruit freshness preserving is to make an effort on the packaging, uses vacuum bag packages.Although can play certain fresh-keeping effect with vacuum bag packages, this fresh-keeping be isolated with oxygen basically, can not play real bactericidal action, some fruit are fresh-keeping in vacuum bag, can not eupnea, also can cause at last spoiled.And use vacuum bag expensive, cost is high.And the defective of Refrigeration Technique is food easy breed bacteria in the process of thawing, and the protein of food surface can be destroyed, and nutritive value and fresh taste are all had a greatly reduced quality.
The technical solution adopted in the present invention can become harmless CO with oxidation Decomposition such as bacterium, viruses with harmful substances such as formaldehyde, benzene,toluene,xylene, ammonia, ethene, TVOC
2And H
2O purifies air and fresh-keeping effect thereby play.
Summary of the invention
The purpose of this invention is to provide a kind of device of using the material of high photocatalysis efficiency, this device can realize that food carries out the fresh-keeping indoor harmful formaldehyde of depositing and remove at normal temperatures.
The invention provides a kind of purifying air and preservation device, comprise air-blast device, light source, photocatalytic degradation device and shell, described air-blast device, light source, photocatalytic degradation device are all fixed with described shell, one side of described light source arranges photocatalytic degradation device, opposite side arranges air-blast device, and described shell has through hole.
Described purify air and preservation device in damping device is set.
Described purify air and preservation device in heater is set.
Pass into DC current in described photocatalytic degradation device, described electric current is 0.5A-1A.
Described light source is ultraviolet light, a kind of in preferred mercury lamp or LED light source, and wherein, the wavelength of described LED light source is 375 ~ 385 nanometers.
Described air-blast device is the low-voltage electric fan, act as the actuating air circulation.
The material of described shell is light-proof material.
Described photocatalytic degradation device comprises basalis nickel screen or copper mesh, outer TiO
2Nanosphere thin layer and the intermediate layer individual layer three-dimensional grapheme layer between basalis and skin.
The aperture of described basalis is 0.01-0.6mm, the preferred 0.01-0.1 mm in aperture.
TiO in described skin
2The diameter of nanosphere is 5-100 nm.
Described photocatalytic degradation device prepares by following steps:
1) under protection gas and hydrogen, 800 ~ 1300 ℃ of conditions, pass into again carbon-source gas after removing the basalis oxide layer, close carbon source after 2-10 minute, sample is cooled to rapidly room temperature, close protection gas and hydrogen;
2) under ice bath, in ethanol, drop rate is controlled at 1-2ml/min with the slow agitation and dropping of butyl titanate, after ultrasonic mixing, then the sample of the first step is put into reactant liquor, 160-220 ℃ of lower hydro-thermal reaction;
3) pass into protection gas, the sample that second step reaction is obtained cleans, be heated to 400 ~ 600 ℃ of reactions after drying, obtains basalis/three-dimensional grapheme/TiO
2The nanosphere film.
The removal time described in step 1 is 5-20 minute, and described carbon-source gas is selected from one or more in methane, methyl alcohol, ethanol or ethane; Described protection gas is selected from argon gas or neon; When described carbon-source gas is methane or ethane, the flow velocity of carbon-source gas is 1-10 s.c.c.m., preferred 3-7 s.c.c.m.; When described carbon-source gas is methyl alcohol or ethanol, use 1-10 s.c.c.m., the protection gas bell of preferred 3-7 s.c.c.m.; The flow velocity of described hydrogen is 100-300 s.c.c.m., preferred 150-250 s.c.c.m.; Described shielding gas flow speed is 300-600 s.c.c.m.; Described cooldown rate is 200-300 ℃/min.
Butyl titanate described in step 2 accounts for the 15-25% of ethanol quality; Described ethanol temperature is controlled at 0-5 ℃, and the described reaction time is 4-24h.
Baking temperature described in step 3 is 50-80 ℃, and described drying condition is under vacuum, and be 3-4h described drying time; Preferred 400 ℃ of described heating-up temperature, the described reaction time is 0.5-3 hour.
The present invention compared with prior art, its remarkable advantage is:
1) improved photocatalysis efficiency, particularly LED light source is as illumination condition, so photocatalysis efficiency improved 8 ~ 10 times at industrial and commercial circles, improved 16 ~ 20 times than traditional efficient with the carbon absorbing formaldehyde;
2) existingly directly the ultraviolet light source direct irradiation is carried out the method for sterilization at foodstuff surface, can only kill the flora of the light source direct irradiation face such as uviol lamp, and device of the present invention can kill the flora of body surface in confined space;
3) realized normal temperature preservation food, and energy-conserving and environment-protective, safe and practical;
The organic matters such as formaldehyde are removed in the effectively sterilization of fresh-keeping instrument of 4) using this material to make, and guarantee air quality, can also sterilizing, extend the food fresh keeping phase;
5) in the preparation of titanium dioxide nano-sphere; control drop rate and dropping temperature; can make titanium dioxide generate the chondritic that size is even, specific area is large; and it is surperficial to be uniformly distributed in the individual layer three-dimensional grapheme; good dispersion; both avoided the reunion of self particle; also effectively prevented the heavily accumulation of graphene sheet layer; the peculiar structure of nano composite material makes it have good heat endurance and excellent photocatalytic activity, in fields such as environmental protection, functional composite material and photocatalysis, potential using value is arranged.
Description of drawings
Fig. 1 is the structural representation of device of the present invention.
Fig. 2 is the structural representation of photocatalytic degradation device 3 of the present invention.
Fig. 3 is embodiments of the invention 1 and Comparative Examples formaldehyde degradation by photocatalytic oxidation process design sketch.
Fig. 4 is the formaldehyde degradation by photocatalytic oxidation process design sketch (a changes light source, and b changes temperature, and c adds electric current, and d adds humidity) under embodiments of the invention 1 different condition.
The specific embodiment
Below in conjunction with accompanying drawing, describe embodiments of the present invention in detail.
Principle of the present invention is: nano-TiO
2It is that 8 steps are completed light-catalysed process that Mechanism of Semiconductor Photocatalytic Degradation is divided into:
Have the photon of hv energy size or have when injecting semiconductor greater than the photon of semiconductor energy gap Eg when one, an electronics is energized into conduction band (CB) by valence band (VB), thereby produce a high activity electronics (e-) on conduction band, stay a hole (h+) on valence band, formed redox system.Dissolved oxygen and power and water and hole interaction finally produce highly active hydroxyl.OH-, O
2-, OOH-free radical has strong oxidizing property, can be adsorbed on TiO to great majority
2The organic pollutant degradation on surface is CO
2, H
2O is the inorganic pollution oxidation or be reduced to harmless object.
as Fig. 1, of the present invention purifying air with preservation device by air-blast device 1, light source 2, photocatalytic degradation device 3, damping device 4 and shell form, described air-blast device 1, light source 2, photocatalytic degradation device 3 is all fixed with shell, one side of light source 2 arranges photocatalytic degradation device 3, opposite side arranges air-blast device 1, the light radiation that light source 2 sends is on photocatalytic degradation device 3, shell has several through holes, in order to keep the moisture of food, damping device 4 is set in the enclosure, humidity is controlled at 15%-40% and is advisable, in order to improve photocatalysis efficiency, also be provided with in the enclosure heater, heater can adopt potsherd, heating and temperature control is below 60 ℃.It is a kind of in the LED light source of 375 ~ 385 nanometers that light source 2 adopts mercury lamps or wavelength.Air-blast device 1 is the low-voltage electric fan, act as the actuating air circulation, and the material of shell adopts light-proof material.
In order to improve photocatalysis effect, also can pass into DC current on photocatalytic degradation device 3, Current Control is in the 0.5A left and right.
Put into closed container with purifying air with preservation device when food, light source 2 and air-blast device 1 are opened in energising, make light source 2 prolonged exposures on photocatalytic degradation device 3 surfaces, circulate by air in 1 pair of closed container of air-blast device.
Embodiment 1
Nickel screen (aperture 0.01mm) is placed in horizontal pipe furnace, pass under argon gas (flow velocity 500 s.c.c.m) and hydrogen (200 s.c.c.m.), 1000 ℃ of conditions, heated 10 minutes, and after removing oxide layer, then passed into methane gas (5 s.c.c.m.), after 5 minutes, close methane gas, keep the flow velocity of argon gas and hydrogen constant, sample is quickly cooled to room temperature with the speed of 200 ℃/min, close argon gas and hydrogen, make the individual layer three-dimensional grapheme.Under ice bath, with butyl titanate 5g with the slow agitation and dropping of drop rate of 1ml/min in 20g ethanol, the ethanol temperature is controlled at 0 ℃, after ultrasonic mixing, to make again the individual layer three-dimensional grapheme and put into reactant liquor, and be placed in hydrothermal reaction kettle and carry out hydro-thermal reaction 4h under 160 ℃.Pass into nitrogen, the sample that hydro-thermal reaction is obtained cleans, is heated to 500 ℃ of reaction 1h after dry 3h under 50 ℃, obtain basalis/three-dimensional grapheme/TiO
2The nanosphere film is photocatalytic degradation device 3.
Embodiment 2
Nickel screen (aperture 0.01mm) is placed in horizontal pipe furnace, pass under argon gas (flow velocity 600 s.c.c.m) and hydrogen (250 s.c.c.m.), 900 ℃ of conditions, heated 20 minutes, after removing oxide layer, then pass into methane gas (10 s.c.c.m.), after 5 minutes, close methane gas, keep the flow velocity of argon gas and hydrogen constant, sample is quickly cooled to room temperature with the speed of 250 ℃/min, close argon gas and hydrogen.Under ice bath, with butyl titanate 5g with the slow agitation and dropping of drop rate of 1.5ml/min in 25g ethanol, the ethanol temperature is controlled at 5 ℃, after ultrasonic mixing, to make again the individual layer three-dimensional grapheme and put into reactant liquor, and be placed in hydrothermal reaction kettle and carry out hydro-thermal reaction 24h under 220 ℃.Pass into nitrogen, the sample that hydro-thermal reaction is obtained cleans, is heated to 600 ℃ of reaction 0.5h after dry 4h under 80 ℃, obtain basalis/three-dimensional grapheme/TiO
2The nanosphere film is photocatalytic degradation device 3.
Nickel screen (aperture 0.1mm) is placed in horizontal pipe furnace, pass under neon (flow velocity 300 s.c.c.m) and hydrogen (100 s.c.c.m.), 800 ℃ of conditions, heated 10 minutes, after removing oxide layer, then pass into ethane gas (1 s.c.c.m.), after 10 minutes, close ethane gas, keep the flow velocity of neon and hydrogen constant, sample is quickly cooled to room temperature with the speed of 200 ℃/min, close neon and hydrogen.Under ice bath, with butyl titanate 6g with the slow agitation and dropping of drop rate of 2ml/min in 40g ethanol, the ethanol temperature is controlled at 3 ℃, after ultrasonic mixing, to make again the individual layer three-dimensional grapheme and put into reactant liquor, and be placed in hydrothermal reaction kettle and carry out hydro-thermal reaction 16h under 180 ℃.Pass into nitrogen, the sample that hydro-thermal reaction is obtained cleans, is heated to 400 ℃ of reaction 3h after dry 4h under 60 ℃, obtain basalis/three-dimensional grapheme/TiO
2The nanosphere film is photocatalytic degradation device 3.
Comparative Examples
Under ice bath, with butyl titanate 5g with the slow agitation and dropping of drop rate of 1ml/min in 20g ethanol, the ethanol temperature is controlled at 0 ℃, after ultrasonic mixing, then nickel screen is put into reactant liquor, is placed in hydrothermal reaction kettle and carries out hydro-thermal reaction 4h under 160 ℃.Pass into nitrogen, the sample that hydro-thermal reaction is obtained cleans, is heated to 500 ℃ of reaction 1h after dry 3h under 50 ℃, obtain nickel screen/TiO
2The nanosphere film.
(1) aldehyde test
1.1 change the photocatalytic degradation device structure, Comparative Examples is obtained material that material and embodiment 1 make as photocatalytic degradation device of the present invention, carry out aldehyde test, inject the approximately liquid formaldehyde of 30ul, open fan, allow it fully volatilize, adopt CO and the CO of calibration
2The concentration data that the sensor Measurement accuracy is real-time is opened uviol lamp (mercury lamp), allows the UV-irradiation photocatalytic degradation device.Every 10 minutes the record one secondary data, its result of the test as shown in Figure 3, result as can be known, the material that embodiment 1 makes as photocatalytic degradation device than not containing the effective of single-layer graphene in Comparative Examples.
1.2 change light source 2, other experiment condition is with 1.1, its result of the test as shown in Fig. 4 a, result as can be known, the LED lamp is effective than mercury lamp degradation of formaldehyde as light source, the LED light source of 385nm wavelength is more effective than 375nm.
1.3 the change temperature makes it to be controlled at 50-60 ℃, other experiment condition is with 1.1, and its result of the test is as shown in Fig. 4 b, and result adds ratio of specific heat and do not heat the effective of degradation of formaldehyde as can be known.
1.4 pass into DC current 0.5A at photocatalytic degradation device, other experiment condition is with 1.1, its result of the test is as shown in Fig. 4 c, and result passes into the effective of the obstructed electric current degradation of formaldehyde of current ratio as can be known.
1.5 change humidity makes it to be controlled at 30%, other experiment condition is with 1.1, and its result of the test is as shown in Fig. 4 d, and result increases humidity ratio and do not add the effective of humidity degradation of formaldehyde as can be known.
(2) degerming and fresh-keeping test
Winter, about room temperature 15 degree, two nonocclusive aseptic a, b and the external world maintain the circulation of air (allowing airborne bacterium enter aseptic), equal culture dish holding in aseptic a, b adds MS culture medium and agar powder in culture dish, then will be shown in Figure 1 purify air and preservation device aseptic a that is placed in one, after shining respectively 12h, 18h, 24h, 24 degree are lower to be cultivated three days, observed in the culture dish of aseptic a, b to have or not the bacterium colony appearance, its experimental result such as following table:
Table 1 degerming experimental result
| Experiment condition | 12h | 18h | 24h |
| a | Without bacterium colony | Without bacterium colony | Without bacterium colony |
| b | Bacterium colony is arranged | Bacterium colony is arranged | Bacterium colony is arranged |
22 ° of left and right of room temperature are placed in the green meat goods in the room of 8 square meters, and built-in two shown in Figure 1 the purifying air and preservation device in room were observed 4 days, and meat products is without smelly phenomenon, and experiment shows that this device can be used for sterilization fresh-keeping.
Claims (10)
1. one kind purifies air and preservation device, it is characterized in that comprising air-blast device (1), light source (2), photocatalytic degradation device (3) and shell, described air-blast device (1), light source (2), photocatalytic degradation device (3) are all fixed with described shell, one side of described light source (2) arranges photocatalytic degradation device (3), opposite side arranges air-blast device (1), and described shell has through hole.
2. according to claim 1 purifying air and preservation device is characterized in that described photocatalytic degradation device (3) comprises basalis (7) nickel screen or copper mesh, skin (5) TiO
2The nanosphere thin layer and be positioned at basalis (7) and outer (5) between intermediate layer (6) individual layer three-dimensional grapheme layer.
3. according to claim 1 purifying air and preservation device, it is characterized in that described purify air and preservation device in damping device (4) is set.
4. according to claim 1 purifying air and preservation device, it is characterized in that described purify air and preservation device in heater is set.
5. according to claim 1 purifying air and preservation device, is characterized in that passing into DC current in described photocatalytic degradation device (3), and described electric current is 0.5A-1A.
6. according to claim 1 purifying air and preservation device, is characterized in that described light source (2) is ultraviolet light.
7. according to claim 1 or 6 described purifying air and preservation device is characterized in that a kind of in the preferred mercury lamp of described light source or LED light source, and wherein, the wavelength of described LED light source is 375 ~ 385 nanometers.
8. according to claim 1 and 2 purifying air and preservation device, is characterized in that the aperture of basalis (7) in described photocatalytic degradation device (3) is 0.01-0.6mm; TiO in outer (5)
2The diameter of nanosphere is 5-100 nm.
9. according to claim 1 and 2 purifying air and preservation device is characterized in that described photocatalytic degradation device (3) prepares by following steps:
1) under protection gas and hydrogen, 800 ~ 1300 ℃ of conditions, pass into again carbon-source gas after removing the basalis oxide layer, close carbon source after 2-10 minute, sample is cooled to rapidly room temperature, close protection gas and hydrogen;
2) under ice bath, in ethanol, drop rate is controlled at 1-2ml/min with the slow agitation and dropping of butyl titanate, after ultrasonic mixing, then the sample of the first step is put into reactant liquor, 160-220 ℃ of lower hydro-thermal reaction;
3) pass into protection gas, the sample that second step reaction is obtained cleans, be heated to 400 ~ 600 ℃ of reactions after drying, obtains basalis/three-dimensional grapheme/TiO
2The nanosphere film.
10. according to claim 7 purifying air and preservation device, is characterized in that the removal time described in step 1 is 5-20 minute, and described carbon-source gas is selected from one or more in methane, methyl alcohol, ethanol or ethane; Described protection gas is selected from argon gas or neon; When described carbon-source gas is methane or ethane, the flow velocity of carbon-source gas is 1-10 s.c.c.m.; When described carbon-source gas is methyl alcohol or ethanol, with the protection gas bell of 1-10 s.c.c.m.; The flow velocity of described hydrogen is 100-300 s.c.c.m.; Described shielding gas flow speed is 300-600 s.c.c.m.; Described cooldown rate is 200-300 ℃/min; Butyl titanate described in step 2 accounts for the 15-25% of ethanol quality, and described ethanol temperature is controlled at 0-5 ℃, and the described reaction time is 4-24h; Baking temperature described in step 3 is 50-80 ℃, and described drying condition is under vacuum, and be 3-4h described drying time, preferred 500 ℃ of described heating-up temperature, and the described reaction time is 0.5-3 hour.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104921252A (en) * | 2015-06-11 | 2015-09-23 | 阚晓敏 | Intelligent preservation device |
| CN105465899A (en) * | 2014-09-26 | 2016-04-06 | 福建省辉锐材料科技有限公司 | Air disinfection purifier and photocatalytic film preparation method thereof |
| CN106139222A (en) * | 2015-04-09 | 2016-11-23 | 藍石環球科技（香港）有限公司 | A kind of photocatalysis film preparation method of air disinfection purification apparatus and use thereof |
| CN106721879A (en) * | 2016-12-05 | 2017-05-31 | 南京悠谷知识产权服务有限公司 | One kind purification preservation device |
| CN110142042A (en) * | 2019-04-25 | 2019-08-20 | 东北大学秦皇岛分校 | A kind of RGO/TiO2The preparation method and application of/Ag aerogel type photochemical catalyst |
| CN112469663A (en) * | 2018-07-09 | 2021-03-09 | 对数9物质科学私人有限公司 | System and synthesis method for graphene-loaded photocatalytic nanomaterial for air purification |
| WO2021232244A1 (en) * | 2020-05-19 | 2021-11-25 | 福建新峰二维材料科技有限公司 | Air purification, sterilization and virus inactivation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2506091Y (en) * | 2001-11-02 | 2002-08-21 | 广东科龙电器股份有限公司 | Freshness retaining device with disinfecting and sterilizing function |
| EP2463233A1 (en) * | 2010-12-08 | 2012-06-13 | Taiwan Textile Research Institute | Graphene/nano-titanium dioxide composites and methods for preparing the same |
| CN102569761A (en) * | 2010-12-08 | 2012-07-11 | 中国科学院金属研究所 | Titanium dioxide/graphene nanocomposite material and preparation method and application thereof |
| CN102553559A (en) * | 2010-12-08 | 2012-07-11 | 财团法人纺织产业综合研究所 | Graphene/nanometer titanium dioxide compound and preparation method thereof |
| CN203123826U (en) * | 2013-01-28 | 2013-08-14 | 江苏苏美仑智能科技有限公司 | Device for purifying air and retaining freshness |
-
2013
- 2013-01-28 CN CN201310032482.4A patent/CN103084062B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2506091Y (en) * | 2001-11-02 | 2002-08-21 | 广东科龙电器股份有限公司 | Freshness retaining device with disinfecting and sterilizing function |
| EP2463233A1 (en) * | 2010-12-08 | 2012-06-13 | Taiwan Textile Research Institute | Graphene/nano-titanium dioxide composites and methods for preparing the same |
| CN102569761A (en) * | 2010-12-08 | 2012-07-11 | 中国科学院金属研究所 | Titanium dioxide/graphene nanocomposite material and preparation method and application thereof |
| CN102553559A (en) * | 2010-12-08 | 2012-07-11 | 财团法人纺织产业综合研究所 | Graphene/nanometer titanium dioxide compound and preparation method thereof |
| CN203123826U (en) * | 2013-01-28 | 2013-08-14 | 江苏苏美仑智能科技有限公司 | Device for purifying air and retaining freshness |
Cited By (9)
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|---|---|---|---|---|
| CN105465899A (en) * | 2014-09-26 | 2016-04-06 | 福建省辉锐材料科技有限公司 | Air disinfection purifier and photocatalytic film preparation method thereof |
| CN106139222A (en) * | 2015-04-09 | 2016-11-23 | 藍石環球科技（香港）有限公司 | A kind of photocatalysis film preparation method of air disinfection purification apparatus and use thereof |
| CN104921252A (en) * | 2015-06-11 | 2015-09-23 | 阚晓敏 | Intelligent preservation device |
| CN104921252B (en) * | 2015-06-11 | 2018-09-04 | 阚晓敏 | A kind of intelligence preservation device |
| CN106721879A (en) * | 2016-12-05 | 2017-05-31 | 南京悠谷知识产权服务有限公司 | One kind purification preservation device |
| CN112469663A (en) * | 2018-07-09 | 2021-03-09 | 对数9物质科学私人有限公司 | System and synthesis method for graphene-loaded photocatalytic nanomaterial for air purification |
| CN110142042A (en) * | 2019-04-25 | 2019-08-20 | 东北大学秦皇岛分校 | A kind of RGO/TiO2The preparation method and application of/Ag aerogel type photochemical catalyst |
| CN110142042B (en) * | 2019-04-25 | 2022-02-08 | 东北大学秦皇岛分校 | RGO/TiO2Preparation method and application of/Ag aerogel photocatalyst |
| WO2021232244A1 (en) * | 2020-05-19 | 2021-11-25 | 福建新峰二维材料科技有限公司 | Air purification, sterilization and virus inactivation device |
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