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Photocatalyst-based composite air purifying agent and preparation method thereof

An air purifier and photocatalyst technology, applied in the field of air purification, can solve the problem of inability to purify organic gases, etc., and achieve the effects of excellent surface catalytic activity, efficient degradation, and high specific surface area.

Inactive Publication Date: 2018-12-18
WUHU SAUNAKING ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary air purification filter elements can only adsorb dust in the air, but cannot purify organic gases

Method used

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  • Photocatalyst-based composite air purifying agent and preparation method thereof

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preparation example Construction

[0015] The invention provides a kind of preparation method of described photocatalyst-based composite air cleaner, comprising the following steps:

[0016] (1) Mix organic silicate and organic titanate evenly to obtain mixed sol A, then add IRMOFs into mixed sol A, and ultrasonically disperse for 20-45 minutes to obtain mixed sol B, then add mixed sol B under stirring conditions Add cetyltrimethylammonium bromide solution dropwise to B, after the dropwise addition, add a pH regulator to adjust the pH of the system to 5.3-6.2, then seal the mixed system at 100-160°C for 1-4 hours, and place The product was centrifugally washed and dried to obtain intermediate product 1;

[0017] (2) After uniformly dispersing polyepichlorohydrin dimethylamine in water, add intermediate product 1, then add redox graphene suspension, after ultrasonic reaction for 15-25 minutes, stir for 3-12 hours, then centrifuge, wash and dry, The intermediate product 2 is obtained;

[0018] (3) The intermedi...

Embodiment 1

[0028] A photocatalyst-based composite air cleaner is made of the following parts by weight: 28 parts by weight of IRMOFs material (MOF-808 (Ni)), 14 parts by weight of tetraethyl titanate, 2 parts by weight of tetrabutyl silicate, 20 parts by weight of polyepichlorohydrin dimethylamine, 10 parts by weight of cetyltrimethylammonium bromide, 10 parts by weight of reduced graphene oxide, 5 parts by weight of 2M hydrochloric acid, 30 parts by weight of N,N-dimethylformamide parts by weight.

[0029] The preparation method of described photocatalyst-based composite air purifier, the steps are as follows:

[0030] (1) Dissolve trimesic acid and nickel chloride in N,N dimethylformamide solution (the molar ratio of nickel chloride and trimesic acid is 1:2), and place the mixture in 1L glass pressure-resistant In the bottle, react at 60°C for 48h, filter the obtained white product with suction, rinse repeatedly with N,N dimethylformamide, and soak the obtained product in anhydrous N,...

Embodiment 2

[0035] A photocatalyst-based composite air cleaner is made of the following parts by weight: 20 parts by weight of IRMOFs material (MOF-808 (Zn)), 5 parts by weight of tetraethyl titanate, 1 part by weight of tetrabutyl silicate, 8 parts by weight of polyepichlorohydrin dimethylamine, 12 parts by weight of cetyltrimethylammonium bromide, 12 parts by weight of reduced graphene oxide, 8 parts by weight of 2M hydrochloric acid, and 50 parts by weight of tetrahydrofuran.

[0036] The preparation method of described photocatalyst-based composite air purifier, the steps are as follows:

[0037] (1) Dissolve trimesic acid and zinc nitrate in tetrahydrofuran solution (the molar ratio of zinc nitrate and trimesic acid is 1:3), put the mixture in a 1L glass pressure bottle, and react at 30°C for 24 hours , the obtained white product was suction filtered, washed repeatedly with tetrahydrofuran, and the obtained product was soaked in anhydrous tetrahydrofuran for three days, then suction ...

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Abstract

The invention relates to the technical field of automobile spare parts, in particular to a photocatalyst-based composite air purifying agent and a preparation method thereof. The preparation method comprises the steps of: compounding organic silicate ester, organic titanate and IRMOFs to obtain an intermediate product 1; dispersing polyepichlorohydrin dimethylamine in water evenly, then adding theintermediate product 1 and redox graphene, carrying out ultrasonic reaction for 15-25min, then carrying out stirring reaction for 3-12h, and then performing centrifugal washing and drying to obtain an intermediate product 2; and roasting the intermediate product 2 in an inert gas atmosphere at 300-500DEG C for 2-6h, thus obtaining the photocatalyst-based composite air purifying agent. The photocatalyst-based composite air purifying agent provided by the invention has excellent catalytic performance, can effectively adsorb pollutants in the air and degrade pollutants in situ, and has broad application prospects in the air purification field.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to a photocatalyst-based composite air cleaner and a preparation method thereof. Background technique [0002] The quality of indoor air is an important factor affecting human health and thoughts and emotions. When the concentration of VOCs (volatile organic compounds) in the indoor air is too high, it is easy to cause acute poisoning. In mild cases, headache, dizziness, cough, nausea, vomiting, or drunkenness will occur; in severe cases, liver poisoning and even coma will occur soon , and some may be life-threatening. Living in a room polluted by VOCs for a long time can cause chronic poisoning, damage the liver and nervous system, cause general weakness, drowsiness, and itchy skin. Some may also cause endocrine disorders and affect sexual function; benzene and xylene can also damage the system and even cause leukemia. At present, it has been identified as a carcinogeni...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/02B01J20/22B01J20/30
CPCB01D53/86B01D53/02B01D2255/20707B01D2255/802B01J20/226
Inventor 马西健崔亮
Owner WUHU SAUNAKING ELECTRONICS TECH CO LTD
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