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Nonwoven fabric containing manganese oxide submicron particles and preparation method and application thereof

A manganese oxide submicron, non-woven fabric technology, applied in textiles and papermaking, applications, clothing, etc., can solve the problems of ineffective ozone removal, achieve rapid ozone removal, efficient ozone removal, and catalyst activity.

Active Publication Date: 2018-11-23
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polypropylene nonwovens form a penetrating 3D pore structure through irregular overlapping of fibers, which can not only effectively trap solid particles in the air, but also have good air permeability, but cannot effectively remove ozone in the air

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Preparation of cerium-doped manganese manganese oxide by hydrothermal method: Weigh 4.4116g Mn(CH 3 COO) 2 .4H 2 O, 0.6513g Ce(NO 3 ) 3 .6H 2 O and 1.8964g KMnO 4 Dissolve in 70ml deionized water, mix well, put it in a stainless steel reactor, continue to react at 100℃ for 24h, centrifuge the product for 5 times and dry it at 100℃ for 5h to obtain a solid cerium-doped manganese type Manganese oxide

[0034] 2. Grind the cerium-doped manganese manganese oxide into sub-micron particles: use a ball mill to continuously grind the cerium-doped manganese oxide manganese oxide for 1 hour to obtain sub-micron particles with an average particle size of 900 nm. After grinding, 0.5g of the submicron particles are evenly dispersed in 50ml of water.

[0035] 3. Prepare modified PP non-woven fabric by UV irradiation grafting method: add 0.5g PP non-woven fabric (gram weight 25g / m 2 , Thickness 120um), ultrasonic vibration treatment with ethanol to remove organic impurities on the surfa...

Embodiment 2

[0040] 1. Preparation of Cerium-doped manganese manganese oxide by hydrothermal method: Weigh 4.9018g Mn(CH 3 COO) 2 .4H 2 O, 1.3027g Ce(NO 3 ) 3 .6H 2 O and 1.5803g KMnO 4 Dissolve in 70ml deionized water, mix well, put it in a stainless steel reactor, continue to react at 100℃ for 24h, centrifuge the product for 5 times and dry it at 100℃ for 5h to obtain a solid cerium-doped manganese type Manganese oxide

[0041] 2. Grind the cerium-doped manganese manganese oxide into sub-micron particles: use a ball mill to continuously grind the cerium-doped manganese oxide manganese oxide for 2.5 hours to obtain sub-micron particles with an average particle size of 650 nm, and then take the grinding 0.5g of the latter submicron particles are evenly dispersed in 50ml of water.

[0042] 3. Prepare modified PP non-woven fabric by UV irradiation grafting method: add 0.5g PP non-woven fabric (gram weight 25g / m 2 , Thickness 120um), ultrasonic vibration treatment with ethanol to remove organic im...

Embodiment 3

[0047] 1. Preparation of Cerium-doped manganese manganese oxide by hydrothermal method: Weigh 5.8822g Mn(CH 3 COO) 2 .4H 2 O, 0.6513g Ce(NO 3 ) 3 .6H 2 O and 0.9542g KMnO 4 Dissolve in 70ml deionized water, mix well, put it in a stainless steel reactor, continue to react at 100℃ for 24h, centrifuge the product for 5 times and dry it at 100℃ for 5h to obtain a solid cerium-doped manganese type Manganese oxide

[0048] 2. Grind the cerium-doped manganese manganese oxide into sub-micron particles: use a ball mill to continuously grind the cerium-doped manganese oxide manganese oxide for 1 hour to obtain sub-micron particles with an average particle size of 900 nm. After grinding, 0.5g of the submicron particles are evenly dispersed in 50ml of water.

[0049] 3. Put 0.5gPP non-woven fabric (gram weight 25g / m 2 , Thickness 120um), treated with ethanol ultrasonic vibration to remove organic impurities on the surface, and then dried; configure a grafting solution with a DMAEMA monomer mas...

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Abstract

The invention provides a nonwoven fabric containing manganese oxide submicron particles. The nonwoven fabric comprises a modified polypropylene nonwoven fabric, wherein the modified nonwoven fabric isloaded with cerium-doped manganese potassium ore type manganese oxide submicron particles. The nonwoven fabric containing manganese oxide submicron particles, the preparation method and the application have the advantage that the nonwoven fabric is modified, loaded and the like, so as to prepare a catalyst which loads manganese oxide submicron particles and can catalyze and degrade the ozone; theenvironment-friendly and high-efficiency effects are realized.

Description

Technical field [0001] The invention belongs to the field of chemical catalytic decomposition, and in particular relates to a nonwoven fabric loaded with cerium-doped manganese oxide submicron particles, a preparation method and application thereof. Background technique [0002] In recent years, as the emissions of ozone precursors NOx and VOCs have increased, ozone pollution has also attracted people's attention. Ozone is a highly oxidizing gas pollutant. Long-term exposure to excessive concentrations of ozone can cause diseases in the human heart, lung and respiratory systems, such as blood pressure changes, asthma, bronchitis, and chronic obstructive pulmonary disease. . Although activated carbon masks can adsorb ozone, their adsorption capacity is low. At present, there is no protective device that can effectively remove ozone on the market. This has also become an urgent problem for scientific researchers. [0003] Researchers have found that the catalytic degradation method...

Claims

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Application Information

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IPC IPC(8): D06M11/48D06M14/28A41D13/11A41D31/00D06M101/20
CPCA41D13/11A41D31/00D06M11/485D06M14/28D06M2101/20
Inventor 魏俊富张环董宇王晓磊汤小龙纪雅丽
Owner TIANJIN POLYTECHNIC UNIV