Indoor air purification assembly comprising air purification material, indoor air purification apparatus, and uses of air purification material and indoor air purification assembly

A technology of air purification materials and air purification devices, applied in transportation and packaging, chemical instruments and methods, gas treatment, etc., can solve the problems of increased pollution, pollutants not being removed, incompatibility, etc.

Active Publication Date: 2017-09-15
李天保 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional nano-titanium dioxide can play a photocatalytic purification effect only under the action of ultraviolet light. It has a weak effect on long-lasting high-concentration pollutant gases in the room. It is obviously powerless to purify the air to reach the standard. Therefore, the indoor air self-circulation system must be produced. The high demands on the purification effect are not suitable for
[0005] At present, some chemical reagents are popular in the market to cover up the indoor odor stimulation technology, but these palliatives do not cure the root cause, they only temporarily cover the odor, the pollutants are not removed, but will increase some new pollution, which is harmful to indoor air quality safety and Purification is useless

Method used

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  • Indoor air purification assembly comprising air purification material, indoor air purification apparatus, and uses of air purification material and indoor air purification assembly
  • Indoor air purification assembly comprising air purification material, indoor air purification apparatus, and uses of air purification material and indoor air purification assembly
  • Indoor air purification assembly comprising air purification material, indoor air purification apparatus, and uses of air purification material and indoor air purification assembly

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Embodiment

[0096] The present invention will be further described below in conjunction with specific examples, but they should not be construed as limiting the protection scope of the present invention.

[0097] Reference Example 1: Preparation of nano-titanium dioxide A doped with ferric oxide semiconductor

[0098] Dissolve 49 g (0.3 mol) of ferric chloride (Beijing Chemical Raw Material Company) in 1000 ml of 15% (weight / volume) NH at room temperature 4 OH aqueous solution. Then, 0.6 mol of industrial-grade titanium tetrachloride (Tianjin Chemical Plant) was slowly added dropwise into the aqueous solution in a frozen water bath, and a white precipitate was uniformly produced under uniform stirring. Then add 0.15mol perchloric acid (Beijing Second Chemical Factory) under stirring to dissolve the white precipitate and obtain a transparent liquid. The liquid was evaporated by heating at 95°C for 2 hours to remove excess water and obtain a sol-gel. The resulting sol-gel was filtered an...

Embodiment 3

[0101] Reference Example 3: Preparation of nano-titanium dioxide C doped with zinc oxide semiconductor

[0102] Dissolve 19 g (0.15 mol) of zinc nitrate (Beijing Chemical Raw Materials Company) in 1000 ml of 5% (weight / volume) NH at room temperature 4 OH aqueous solution. Then, 0.6 mol of industrial-grade titanium tetrachloride (Tianjin Chemical Plant) was slowly added dropwise into the aqueous solution in a frozen water bath, and a white precipitate was uniformly produced under uniform stirring. Then, 0.15 mol of nitric acid (Beijing Chemical Raw Material Company) was added under stirring to dissolve the white precipitate and obtain a transparent liquid. The liquid was evaporated by heating at 95°C for 2 hours to remove excess water and obtain a sol-gel. The resulting sol-gel was filtered and washed 4 times with 500 ml of water to bring its pH to 7. The washed sol-gel was dried at 20° C. and 10 mmHg for 5 hours to obtain a white micropowder, which is a metastable titanium ...

Embodiment 1

[0105] According to the mass ratio, take by weighing 47% by weight of pyrolusite powder clay (purchased from Shandong Zibo Zhaoyi Industrial Co., Ltd.), 45% by weight of nano-titanium dioxide A and 8% by weight of activated carbon (purchased from Beijing Kecheng Guanghua New Technology Co., Ltd. Co., Ltd.), under stirring at a speed of 200r / min, add deionized water based on the total weight of 40% by weight of pyrolusite powder clay, nano-titanium dioxide A and activated carbon, mix uniformly, and granulate into small spherical particles. Bake at 100°C for 70 minutes, then raise the temperature to 550°C at a rate of 3°C / min, keep at this temperature for 0.5h, and then sinter to obtain composite particles A1.

[0106] The XRD pattern of the composite particles is shown in Figure 4 , the comparison chart of the intensity of hydroxyl radicals detected by ESR between composite particles A1 and nano-titanium dioxide A raw materials is shown in Figure 5 .

[0107] Depend on Fi...

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Abstract

The present invention relates to a purification assembly for indoor air purification and comprising an air purification material, wherein the air purification material preparation method comprises: uniformly mixing a solid mixture in the presence of binder water, granulating, drying and calcining, and the solid mixture comprises 1) 40-56 wt% of semiconductor material doped nanometer titanium dioxide, 2) 42-50 wt% of pyrolusite powder-containing clay, and 3) 2-10 wt% of active carbon. The present invention further relates to an indoor air purification apparatus comprising the purification assembly, uses of the air purification material in production of the purification apparatus and the purification assembly, and uses of the purification assembly in production of the purification apparatus. According to the present invention, with the air purification material, the TVOC volatilization time can be effectively shortened, the air can be effectively and powerfully purified, and the effect can be achieved without illumination; and the purification material further has sufficient strength so as to substantially prolong the air purification time.

Description

technical field [0001] The present invention relates to an air purification assembly for indoor air purification comprising an air purification material and an air purification device comprising the assembly, and also relates to the use of the air purification material in the production of the air purification assembly and the air purification device And the use of said purification component in the production of said air purification device. Background technique [0002] Due to the continuous and long-term release of toxic and harmful gases from interior decoration materials, as well as the breeding of bacteria and mold, the room will be filled with strong volatile organic compounds, odors and other harmful gases. Usually, even if a newly renovated house has been inhabited for several years, the interior The polluting gas still seriously exceeds the standard, which will cause great harm to human health. [0003] The greater the amount of volatile organic pollutants loaded ...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/44B01D46/00
CPCB01D53/8687B01D2258/06B01D2257/708B01D2255/802B01D2267/40B01D46/62
Inventor 徐瑞芬李天保
Owner 李天保
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