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Novel photocatalytic air purifier and method for purifying air

An air purifier and photocatalytic technology, applied in the field of air purification, can solve the problems of poor purification effect of photocatalytic air purifier, and achieve the effects of compact structure, safe use and improved performance.

Inactive Publication Date: 2016-12-07
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned existing equipment and technology, the present invention proposes a new type of photocatalytic air purifier, which integrates high-performance nanofiber filter, visible LED light source, visible light responsive photocatalyst filter and humidification device, to solve the problem of existing photocatalytic air purifier. The problem of poor purification effect of air purifier

Method used

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  • Novel photocatalytic air purifier and method for purifying air
  • Novel photocatalytic air purifier and method for purifying air
  • Novel photocatalytic air purifier and method for purifying air

Examples

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Effect test

Embodiment 1

[0030] This example is used to understand the structure and working principle of the new photocatalytic air purifier.

[0031] A new type of photocatalytic air purifier, such as figure 1 As shown, it includes an air cleaner body, the air cleaner body includes a housing 1, the side wall of the housing 1 is provided with an air inlet 8, and the top is provided with an air outlet 9, and the housing 1 is sequentially arranged along the direction of air flow. There are primary filter 3, high-performance nanofiber filter 4, visible LED light source 5, visible light responsive photocatalyst filter 6, circulation fan 7, humidifying device 2, humidifying device 2 is located below the air outlet 9, and the housing 1 There are also electrical circuits and external power lines inside.

[0032]The specific work of the purifier: under the action of the circulating fan 7, the polluted air enters the purifier from the air inlet 8, and passes through the primary filter 3, the high-performance...

Embodiment 2

[0044] This example is used to investigate the performance of the visible light-responsive photocatalyst filter screen for degrading VOCs under the excitation of a visible LED light source.

[0045] Weigh 0.1 g of Y 2 o 2 S photocatalyst (our previous work, a high-efficiency visible light catalyst and its preparation method, application number 201510692553.2), was added to 10 ml of absolute ethanol, and a uniform suspension was formed after ultrasonication for 30 minutes. Then, the suspension was dispersed into a glass filter core with a diameter of 6.5 cm to make a visible light-responsive photocatalyst filter.

[0046] Paste a visible LED light source (emission wavelength at 420 nm) on a DC fan to make an excitation light source.

[0047] The visible light-responsive photocatalyst filter and excitation light source were fixed in a custom-made quartz sleeve, and the distance between the visible LED light source and the visible light-responsive photocatalyst filter was 5 cm....

Embodiment 3

[0052] This example is used to investigate the structure of high-performance nanofibers.

[0053] Weigh 100 grams of nylon powder, add it to 400 grams of formic acid, stir for 60 minutes, and mix it evenly to obtain a nylon solution 1 with a concentration of 25 wt%.

[0054] Add 0.8 grams of Pingpingao O (that is, alkyl polyoxyethylene ether) into 100 grams of deionized water, stir for 45 minutes, and mix well to obtain Pingpingao O solution 2 with a concentration of 0.8 wt%.

[0055] 0.05 g of sodium dodecylsulfonate was added to 100 g of deionized water, stirred for 30 minutes, and mixed uniformly to obtain a sodium dodecylsulfonate solution 3 with a concentration of 0.05 wt%.

[0056] Take 10 ml of Pingpingjia O solution 2 and 10 ml of sodium dodecylsulfonate solution 3, add it to nylon solution 1, and prepare nylon nanofibers by using an air-flow electrospinning machine.

[0057] image 3 is the electron microscope picture of the prepared nylon nanofibers. It can be see...

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Abstract

The invention discloses a novel photocatalytic air purifier which comprises an air purifier body. The air purifier body comprises a shell. The shell is provided with an air inlet and an air outlet. A primarily efficient filter screen, a high-performance nanofiber filter screen, a visible LED light source, a visible light response photocatalyst filter screen, a circulation fan and a humidification device are sequentially arranged in the shell in the air flowing direction. The air inlet is formed in the side wall of the shell, and the air outlet is formed in the top of the shell. The humidification device is arranged below the air outlet. An electrical circuit and an external power line are further arranged in the shell. According to the purifier, particulate pollutants and virosome of different sizes in air can be efficiently filtered out and intercepted, VOCs of different kinds in the air can be effectively degraded and mineralized, and the humidity of the purified air can be adjusted.

Description

technical field [0001] The invention relates to the technical field of air purification, and relates to a novel photocatalytic air purifier and a method for purifying air. Background technique [0002] With economic development and social progress, the problem of environmental pollution is becoming more and more serious. Volatile organic compounds (Volatileorganic compounds, VOCs) are the main pollutants in the atmosphere, part of which comes from outdoors, mainly industrial waste gas, motor vehicle exhaust, photochemical smog, etc.; the other part comes from indoors, decoration, decoration materials such as paint and Its solvents, wood preservatives, paints, plywood, etc. can release various volatile organic substances such as toluene and formaldehyde at room temperature. Due to the poor air mobility in the indoor environment, the accumulated pollutants have caused serious harm to the human body through human breathing and skin. Taking formaldehyde as an example, the huma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/02F24F3/16F24F3/14F24F13/28
CPCF24F3/14F24F13/28F24F8/10F24F8/108F24F8/167
Inventor 丁建军林永兴陈林田兴友
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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