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Preparation method of porous graphene-based air purification agent

An air purifier and porous graphene technology, applied in chemical instruments and methods, separation methods, physical/chemical process catalysts, etc., can solve problems such as human hazards and secondary pollution

Inactive Publication Date: 2018-11-09
ANHUI LEJIN ENVIRONMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used method of getting out of the irritating gas in the car room is to open the window and discharge the harmful gas into the air. When the ambient temperature is too high or too low, this discharge method is restricted, or the purchase of an adsorbent The substances adsorb harmful gases, but most of these adsorptive substances can only adsorb indoor pollutants without degrading them, which will cause secondary pollution and still have great harm to the human body.

Method used

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  • Preparation method of porous graphene-based air purification agent

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preparation example Construction

[0013] The present invention also provides a kind of preparation method of described porous graphene-based air cleaner, comprises the following steps:

[0014] (1) Add foaming agent to polypropylene resin and mix evenly, then obtain polypropylene fiber by electrospinning, and calcinate polypropylene fiber at 300-450°C for 2-4 hours to obtain porous carbon fiber;

[0015] (2) Mix porous carbon fiber, soluble metal salt, silane coupling agent and organic titanate in a solvent to obtain a mixed system, then add inorganic acid to adjust the pH value of the mixed system to be acidic, and then sonicate for 15 to 30 minutes, Then seal and react at 80-120°C for 3-6 hours to obtain modified porous carbon fibers;

[0016] (3) Mix graphene oxide and oxometalate in an aqueous solution evenly, then add melamine, and then seal and react at 80-150°C for 3-8 hours under airtight conditions to obtain a mixed system, and then put the mixed system in the microwave The reaction was carried out f...

Embodiment 1

[0026] A porous graphene-based air cleaner, made of the following parts by weight: 8 parts by weight of tetraethyl titanate, 0.5 parts by weight of nickel acetate, 1.5 parts by weight of silane coupling agent KH7921, 4 parts by weight of graphene oxide , 4 parts by weight of sodium tungstate, 4 parts by weight of melamine, 3 parts by weight of N,N'-dinitrosopentamethylenetetramine, 105 parts by weight of polypropylene resin, 4 parts by weight of hydrochloric acid (2M), 50 parts by weight of ethanol share.

[0027] The preparation method of described porous graphene-based air cleaner comprises the following steps:

[0028] (1) Add N,N'-dinitrosopentamethylenetetramine to polypropylene resin and mix evenly, then obtain polypropylene fiber by electrospinning. The electrospinning process is: power supply voltage 50kV, spinning The temperature is 35°C, the relative humidity is 75%; the needle spacing of the multi-needle spinneret unit is 35cm, and the number of needleheads of the ...

Embodiment 2

[0034] A porous graphene-based air cleaner, made of the following parts by weight: 5 parts by weight of tetraisopropyl titanate, 0.8 parts by weight of magnesium nitrate, 1.8 parts by weight of silane coupling agent KH580, 6 parts by weight of graphene oxide 3 parts by weight of sodium molybdate, 5 parts by weight of melamine, 2 parts by weight of N,N'-dinitrosopentamethylenetetramine, 100 parts by weight of polypropylene resin, 3 parts by weight of hydrochloric acid (3M), 45 parts by weight of water parts by weight.

[0035] (1) Add N,N'-dinitrosopentamethylenetetramine to polypropylene resin and mix evenly, then obtain polypropylene fiber by electrospinning. The electrospinning process is: power supply voltage 50kV, spinning The temperature is 35°C, the relative humidity is 75%; the needle spacing of the multi-needle spinneret unit is 35cm, and the number of needleheads of the spinneret unit is 90;

[0036] Calcining polypropylene fibers at 400°C for 2.5 hours to obtain por...

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Abstract

The invention relates to the technical field of vehicle purification agents, in particular to a preparation method of a porous graphene-based air purification agent. The preparation method of the porous graphene-based air purification agent includes the steps of: (1) adding a foaming agent into polypropylene resin and mixing the substances evenly, then conducting electrospinning to obtain polypropylene fiber, and performing calcining to obtain porous carbon fiber; (2) subjecting the porous carbon fiber, a soluble metal salt, a silane coupling agent and organic titanate to thermal reaction in asolvent to obtain modified porous carbon fiber; (3) modifying graphene oxide to obtain porous modified graphene oxide; and (4) mixing the modified porous carbon fiber with the porous modified graphene oxide to obtain the composite porous graphene-based air purification agent. The porous graphene-based air purification agent obtained by the method provided by the invention can adsorb harmful gasesin the air and catalyze harmful gases in situ at an adsorption point, and has the advantages of high catalytic efficiency and high removal rate.

Description

technical field [0001] The invention relates to the technical field of air purifiers, in particular to a preparation method of a porous graphene-based air purifier. Background technique [0002] 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 carcinogenic and teratogenic substance by the World Health Organization, and the health problems caused by indoor environmental po...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30B01J21/18B01J35/06B01D53/86
CPCB01D53/02B01D53/86B01J20/20B01J20/28023B01J21/18D06M2101/40B01D2253/102B01D2255/20707B01D2255/802B01J35/39B01J35/58
Inventor 郭常青吴学军
Owner ANHUI LEJIN ENVIRONMENT TECH CO LTD
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