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MOFs (metal-organic frameworks) pulp fiber composite and forming and preparing method thereof

A composite material and pulp fiber technology, which is applied in the field of MOFs pulp fiber composite material and its molding and preparation, can solve the problems of high price of molding carrier, complicated molding method, low practicability, etc., and achieves recycling, reusability, low cost, Simple and effective process

Inactive Publication Date: 2015-10-07
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the molding and immobilization technologies of these MOFs materials are either expensive and difficult to shape the carrier, or the molding method is cumbersome due to the lack of chemical groups that can effectively fix the MOFs crystal on the carrier, so the practicability is not high.

Method used

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  • MOFs (metal-organic frameworks) pulp fiber composite and forming and preparing method thereof
  • MOFs (metal-organic frameworks) pulp fiber composite and forming and preparing method thereof
  • MOFs (metal-organic frameworks) pulp fiber composite and forming and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038](1) 100% raw wood pulp paper is mixed with 10ml hydrogen peroxide solution with a molar concentration of 1mol / l (the mass ratio of pulp paper and hydrogen peroxide solution is 1:100), and stirred for 0.5h to make the paper evenly dispersed into pulp, Then heat at 100°C for 6h, cool to room temperature (25°C), and use G 4 Filter through a funnel, wash with distilled water until neutral, and dry at 40°C to obtain pretreated log pulp paper;

[0039] (2) Add 0.3g(m 1 ) The log pulp paper pretreated in step (1) is placed in distilled water, the mass ratio of pulp paper to distilled water is 1:100, stirred at room temperature (25°C) for 0.5h to form pulp, and uniformly dispersed in deionized water, Obtain pulp solution;

[0040] (3) After drying MIL-101(Cr) crystal powder at 100°C and vacuum drying at 150°C for activation, quickly weigh 0.1g (m 2 ) of the MIL-101(Cr) material is added to the pulp solution, where the loading ratio is m 2 / (m 1 +m 2 )=25%, and continue sti...

Embodiment 2

[0043] (1) 100% raw wood pulp paper and molar concentration are 20ml hydrogen peroxide solution mixing (the mass ratio of pulp paper and hydrogen peroxide solution is 1:200), stir 2h to make paper evenly disperse into pulp, then Heat at 85°C for 8h, cool to room temperature (25°C), and use G 4 Filter through a funnel, wash with distilled water until neutral, and dry at 50°C to obtain pretreated log pulp paper;

[0044] (2) Add 0.3g(m 1 ) The log pulp paper pretreated in step (1) is placed in distilled water, the mass ratio of pulp paper to distilled water is 1:200, stirred at room temperature (25°C) for 4h to form pulp, and uniformly dispersed in deionized water to obtain pulp solution;

[0045] (3) After drying MIL-101(Cr) crystal powder at 120°C and vacuum drying at 200°C for activation, quickly weigh 0.2g (m 2 ) of the MIL-101(Cr) material is added to the pulp solution, where the loading ratio is m 2 / (m 1 +m 2 )=40%, and continue stirring for 0.5h to obtain mixed pul...

Embodiment 3

[0048] (1) Mix 100% log pulp paper (pulp fiber) with 30ml hydrogen peroxide solution with a molar concentration of 2mol / l (the mass ratio of pulp paper to hydrogen peroxide solution is 1:300), and stir for 4 hours to make the paper evenly dispersed Make pulp, then heat at 100°C for 10h, cool to room temperature (25°C), and use G 4 Filter through a funnel, wash with distilled water until neutral, and dry at 50°C to obtain pretreated log pulp paper;

[0049] (2) Add 0.3g(m 1 ) The log pulp paper pretreated in step (1) is placed in distilled water, the mass ratio of pulp paper to distilled water is 1:300, stirred at room temperature (25°C) for 5h to form pulp, and uniformly dispersed in deionized water to obtain pulp solution;

[0050] (3) After drying MIL-101(Cr) crystal powder at 120°C and vacuum drying at 200°C for activation, quickly weigh 0.3g (m 2 ) of the MIL-101(Cr) material is added to the pulp solution, where the loading ratio is m 2 / (m 1 +m 2 )=50%, and continue...

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Abstract

The invention belongs to the technical field of porous material forming, and discloses a MOFs (metal-organic frameworks) pulp fiber composite and a forming and preparing method thereof. The method comprises the following steps of pre-treating wood pulp paper by using hydrogen peroxide solution; dispersing the wood pulp paper in distilled water to obtain pulp solution; adding a MOFs powder material in the pulp solution to obtain mixed pulp; and filtering and drying the mixed pulp and performing vacuum drying on the mixed pulp to obtain the platy MOFs pulp fiber composite. The MOFs material which is in the state of original powder is loaded on pulp fibers with high toughness. The MOFs pulp fiber composite has the advantages of easiness in use, convenience in recycling and recyclability, and has quite high actual application potential.

Description

technical field [0001] The invention belongs to the technical field of porous material molding, and in particular relates to a MOFs pulp fiber composite material and a molding preparation method thereof. Background technique [0002] With the rapid development of industry, people have a large demand and consumption of fossil energy such as coal, oil, natural gas, etc., resulting in CO in the atmosphere 2 This has brought about a series of environmental problems such as climate warming, glacier melting, sea level rise, and extreme weather. In addition, industrial production, automobile exhaust, and building decoration also emit a large amount of volatile organic compounds, that is, VOCs, which not only further aggravates environmental pollution, but also seriously threatens human health due to the chronic poisonous effect of VOCs on the human body. Therefore, for CO 2 The adsorption and separation of VOCs and VOCs are currently a major research hotspot. [0003] In recent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30B01D53/02B01D53/62B01D53/44
Inventor 李忠周珍宇肖静夏启斌程柏华
Owner SOUTH CHINA UNIV OF TECH
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