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Air filtering medium material, medium, filter and air filtering method

An air filter and air filtration technology, which is applied in the direction of chemical instruments and methods, filtration separation, separation methods, etc., can solve the problem of not being able to effectively remove pollutant particles at the same time, and achieve the effect of purifying the air

Inactive Publication Date: 2014-04-02
英佛曼(江苏)纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing air filter media or devices can selectively adsorb / remove only a few VOCs
In addition, the existing air filter media materials or equipment still have the defect that they cannot effectively remove pollutant particles and various volatile organic compounds at the same time

Method used

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  • Air filtering medium material, medium, filter and air filtering method
  • Air filtering medium material, medium, filter and air filtering method
  • Air filtering medium material, medium, filter and air filtering method

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0097] Preparation Example 1: Preparation of manganese dioxide bird's nest nanofiber material

[0098] The synthesis of bird's nest nanofiber material: potassium permanganate is used as the oxidant and manganese sulfate is used as the precursor of the reaction. The chemical reaction equation is as follows:

[0099] 2KMnO 4 +3MnSO 4 +2H 2 O→5MnO 2 +K 2 SO 4 +2H 2 SO 4

[0100] (1)

[0101] Dissolve 550g MnSO in 1900ml deionized distilled water 4 (Purchased from Aldrich) to prepare the precursor reactant solution. 368g KMnO 4 (Purchased from Aldrich) dissolved in 6300ml deionized distilled water. Slowly add the precursor solution and the oxidant solution into the reaction vessel by atomization or dripping to form an amorphous (or non-crystalline) colloidal suspension of amorphous nanoparticles. Then, at pH It was dried at a temperature of 110°C to obtain a brown powdered manganese dioxide bird's nest nanofiber.

[0102] The morphology and microstructure of the powder: Such as Figure...

preparation Embodiment 2

[0110] Preparation Example 2: Preparation of cobalt-doped manganese dioxide nanofiber bird's nest material

[0111] The method is basically similar to that of Preparation Example 1, except that the reaction time is shortened and the reaction temperature is slightly lowered during the synthesis process, and 0.01-25 wt% of cobalt is doped. The specific synthesis steps are as follows:

[0112] Prepare the precursor reactant solution in proportion, add 368g KMnO 4 (Aldrich) dissolved in 6300ml deionized distilled water, 550g MnSO 4 (Aldrich) dissolved in 1900ml deionized distilled water, and 10g Co(NO 3 ) 2 (Aldrich) was dissolved in 50 ml of deionized distilled water. Slowly add the prepared solution to the reaction vessel by means of atomization or dripping to form an amorphous (or non-crystalline) colloidal suspension of amorphous nanoparticles. At pH Drying at a temperature of 110° C. obtains cobalt-doped manganese dioxide bird's nest nanofiber powder.

[0113] It is determined th...

preparation Embodiment 3

[0114] Preparation Example 3: Preparation of manganese dioxide nanofiber bird's nest material doped with iron and cerium

[0115] The preparation method of this preparation example is basically similar to preparation example 2, and the specific synthesis steps are as follows:

[0116] The precursor reactant solution was prepared in proportion, and 368g KMnO 4 (Aldrich) dissolved in 6300ml deionized distilled water, 550g MnSO 4 (Aldrich) dissolved in 1900ml deionized distilled water, 10g Fe(NO 3 ) 3 (Aldrich) dissolved in 50ml deionized distilled water, and 10g Ce(NO 3 ) 3 (Aldrich) was dissolved in 100 ml of deionized distilled water. Slowly add them to the reaction vessel by atomization or dripping to form an amorphous (or non-crystalline) colloidal suspension of amorphous nanoparticles. At pH Drying at a temperature of 110°C obtains iron and cerium-doped manganese dioxide bird's nest-like nanofiber powder.

[0117] After testing, the nano-bird’s nest made by this method is basica...

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Abstract

The invention discloses an air filtering medium material comprising bird nest type nano fiber materials. The bird nest type nano fiber materials are bird nest type particles which are formed by interweaving nano fibers with multiporous structures and nano particles; the nano particles consist of the same type or different types of substances which form the bird nest type nano fiber materials; furthermore, the bird nest type nano fiber materials can be combined with other active particles to form the multifunctional composite air filtering medium material. Moreover, the invention also discloses an air filtering medium and an air filter which comprise the air filtering medium material as well as an air filtering method adopting the air filter. The air filtering medium material disclosed by the invention can effectively filter toxic gases, including more than 50 types of organic volatile matters, in air; meanwhile, the air filtering medium material can adsorb particle pollutants in air and remove peculiar smell, so that a satisfactory air purification effect can be achieved by one material.

Description

Technical field [0001] The invention relates to an air filter medium material, an air filter medium containing the material, an air filter and an air filtering method. Background technique [0002] There are many sources of air pollutants. There are many primitive natural processes that affect air quality, such as sulfur, chlorine, and dust particles produced by volcanic eruptions, smoke and carbon monoxide produced by wildfires, and even methane emitted during animal digestion, which will pollute the air. Even volatile organic compounds (VOCs) emitted by pine trees can pollute the air. [0003] In today's society with rapid industrial development, air pollution has become a major factor endangering people's health and quality of life. Many forms of air pollution today are man-made, such as nitrogen oxides, volatile organic compounds, carbon monoxide, carbon dioxide, sulfur oxides, and particulate matter produced by internal combustion engines, various industries, power plants, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/02B01D46/30
Inventor 肖东山
Owner 英佛曼(江苏)纳米科技有限公司
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