A metal-organic framework fiber membrane for filtering tobacco smoke particles and its application

An organic skeleton, smoke particle technology, applied in filtration separation, dispersed particle filtration, membrane technology, etc., to achieve the effect of high efficiency filtration and excellent filtration performance

Active Publication Date: 2021-02-23
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adsorption and removal efficiency of particulate matter is basically maintained at 50%, and the efficiency needs to be further improved.

Method used

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  • A metal-organic framework fiber membrane for filtering tobacco smoke particles and its application
  • A metal-organic framework fiber membrane for filtering tobacco smoke particles and its application
  • A metal-organic framework fiber membrane for filtering tobacco smoke particles and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of MOF fiber film that is used for filtering tobacco smoke particle, this fiber film is MIL-53 (Al) fiber film, and preparation method comprises steps as follows:

[0041] (1)Al 2 o 3 Preparation of fiber membrane

[0042] Add 1.08g of aluminum powder to a mixed solution of 6.03mL of formic acid solution (88wt%), 6.86mL of glacial acetic acid (99.5wt%) and 17.28mL of water under stirring conditions, reflux and stir at 60-80°C until the aluminum powder is completely dissolved, filter To obtain a clear solution, add 0.1g of PEO, and continue to stir for 2 hours to obtain a spinning solution; use the electrospinning SS-2535H equipment of Beijing Yongkang Leye Company to perform electrospinning on the obtained spinning solution, and the conditions are: spinning voltage 18kV , the electrode distance is 180mm, the temperature is 15°C, and the relative humidity is 20%, the fiber film precursor is obtained; the obtained fiber film precursor is calcined at 600°C for 2h,...

Embodiment 2

[0048] As described in Example 1, the difference is:

[0049] Step (1) is with embodiment 1;

[0050] In step (2), the concentration is an aqueous solution of 1 wt% terephthalic acid.

Embodiment 3

[0052] As described in Example 1, the difference is:

[0053] Step (1) is with embodiment 1;

[0054] In step (2), the concentration is an aqueous solution of 5wt% terephthalic acid.

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Abstract

The invention relates to a metal-organic framework fiber membrane for filtering tobacco smoke particles and its application. The metal-organic framework fiber membrane is obtained by completely converting an oxide fiber membrane directly with an organic ligand, and has a super high ratio surface area. The metal-organic framework fiber membrane for filtering tobacco smoke particles of the present invention has excellent filtering performance for tobacco smoke particles, and has excellent filtration performance for PM 10 and PM 2.5 The filtration rates are above 91% and 89% respectively.

Description

technical field [0001] The invention relates to a metal-organic framework fiber membrane for filtering tobacco smoke particles and an application thereof, belonging to the technical field of tobacco smoke control. Background technique [0002] Tobacco smoke (Tobacco smoke) is produced by the incomplete combustion of tobacco during smoking, and contains a large amount of particulate matter and harmful gases. It can cause lung cancer, heart disease, emphysema, chronic obstructive pulmonary disease, etc. Particles in tobacco smoke are aerosol droplets composed of tobacco tar, nicotine, and water, which can be directly inhaled by humans due to their small size. In addition, environmental tobacco smoke (Environmental tobacco smoke) is an important source of indoor air pollution. Therefore, it is particularly important to filter and purify tobacco smoke particles. [0003] At present, the filter materials commonly used at home and abroad mainly include cellulose acetate tow, pol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D71/06B01D67/00B01D46/54B01D46/00B01D39/14D01F9/08
Inventor 李澄梁慧芯焦秀玲陈代荣
Owner SHANDONG UNIV
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