Preparation method of ZIF-8/carbon fiber composite material for adsorbing aqueous organic dye

A technology of ZIF-8 and organic dyes, applied in the direction of adsorption of water/sewage treatment, water pollutants, water/sewage treatment, etc., can solve the problems of high content of organic pollutants, deep color of dye wastewater, complex components, etc., to achieve Wide range of sources, water purification, and simple operation

Inactive Publication Date: 2019-03-22
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problems of dye wastewater with deep chroma, high content of organic pollutants, and complex components, so as to achiev...

Method used

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  • Preparation method of ZIF-8/carbon fiber composite material for adsorbing aqueous organic dye
  • Preparation method of ZIF-8/carbon fiber composite material for adsorbing aqueous organic dye
  • Preparation method of ZIF-8/carbon fiber composite material for adsorbing aqueous organic dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of preparation method for the ZIF-8 / carbon fiber composite material of aqueous phase organic dye adsorption, comprises the following steps:

[0032] 1. Cutting the area of ​​carbon fiber cloth for acetone desizing to 100-400cm 2 , put it into a beaker, treat it in concentrated nitric acid at 60-80°C for 4-8 hours, and then dry it to obtain a carbon fiber cloth that has been subjected to strong oxidation treatment to form carboxylate groups;

[0033] Wherein, the volume of acetone and the mass ratio of carbon fiber cloth are 30-50ml: 1-5g, the volume of concentrated nitric acid and the mass ratio of carbon fiber cloth are 10-30ml: 1-5g;

[0034] Two, the ZnO powder and 2-methylimidazole are mixed uniformly in proportion, and ground at room temperature until it becomes a white fine powder, so as to obtain the ZnO powder and 2-methylimidazole mixture;

[0035] Wherein the molar ratio of zinc oxide to 2-methylimidazole is: 5-15:9.5-28.5;

[0036] 3. Spread the carb...

Embodiment 2

[0040] A kind of preparation method for the ZIF-8 / carbon fiber composite material of aqueous phase organic dye adsorption, comprises the following steps:

[0041] 1. Put the carbon fiber monofilament desized by acetone into a beaker, treat it in concentrated nitric acid at 60-80°C for 4-8 hours, and then dry it to obtain the carbon fiber monofilament that has been subjected to strong oxidation treatment to form carboxylate groups;

[0042] Wherein, the volume of acetone and the mass ratio of carbon fiber monofilament are 30-50ml: 1-5g, the volume of concentrated nitric acid and the mass ratio of carbon fiber monofilament are 10-30ml: 1-5g;

[0043] Two, the ZnO powder and 2-methylimidazole are mixed uniformly in proportion, and ground at room temperature until it becomes a white fine powder, so as to obtain the ZnO powder and 2-methylimidazole mixture;

[0044] Wherein the molar ratio of zinc oxide to 2-methylimidazole is: 5-15:9.5-28.5;

[0045]Three, spread the ZnO powder a...

specific example 1

[0048] 1. Cut the area of ​​the carbon fiber cloth for desizing with acetone to 10*10cm, treat it with an appropriate amount of concentrated nitric acid at 80°C for 4 hours, and then dry it in an oven to obtain a carbon fiber cloth that has been subjected to strong oxidation treatment to form carboxylate groups;

[0049] Two, the ZnO powder and 2-methylimidazole were mixed uniformly in proportion, and were ground at room temperature for 3 hours, until turning into a white fine powder, to obtain a mixture of ZnO powder and 2-methylimidazole;

[0050] 3. Spread the carbon fiber cloth obtained in step 1 that has been strongly oxidized to form carboxylate groups on a square glass plate with a side length of 10 cm, add 10 g of the ZnO powder and 2-methylimidazole mixture obtained in step 2, and continue grinding for 1.5 hours , put the second and third layers of carbon fiber cloth that have been subjected to strong oxidation treatment to generate carboxylate groups, and repeat the a...

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Abstract

A preparation method of a ZIF-8/carbon fiber composite material for adsorbing an aqueous organic dye comprises the steps of carrying out strong oxidation treatment on carbon fiber cloth or a carbon fiber monofilament by using nitric acid; uniformly mixing ZnO powder and 2-methylimidazole according to a certain molar ratio; grinding an obtained mixture at a room temperature; horizontally laying thecarbon fiber cloth on a glass plate; covering one layer of mixed powder prepared in the step 2 to the carbon fiber cloth; continuing to grind the obtained mixture; when a lot of uniform powder penetrate through filaments of the carbon fiber cloth, stopping grinding; putting second layer of carbon fiber cloth and third layer of carbon fiber cloth in the same manner; repeating the steps; covering aglass plate on a mixed body of the ground cloth or monofilament and the mixed powder in the step 2; closely wrapping the mixed body by using a tinfoil; clamping the mixed body by using a fishtail clip; putting the mixed body in a drying box to be heated for reaction; after a section of time, obtaining the MOF-loaded carbon fiber cloth or the MOF-loaded carbon fiber monofilament. The preparation method of the ZIF-8/carbon fiber composite material for adsorbing the aqueous organic dye, provided by the invention, is used for preparing MOF/carbon fiber composite materials for adsorbing the aqueous organic dyes.

Description

technical field [0001] The invention relates to a preparation method of a ZIF-8 / carbon fiber composite material used for the adsorption of aqueous organic dyes. Background technique [0002] Along with the development of science and technology, the raising of people's living standard, the environmental pollution that brings thereby also is paid close attention to by broad masses of people day by day. Among all kinds of pollution, water pollution is the most widespread and the most serious. Wastewater has deep color, high content of organic pollutants, complex components, high biological toxicity, and difficult biodegradation, which poses great harm to environmental pollution. The main hazards are as follows: [0003] (1) The dyes in the wastewater can absorb light, reduce the transparency of the water body, consume a large amount of oxygen in the water, cause the water body to lack oxygen, affect the growth of aquatic organisms and microorganisms, destroy the self-purifica...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F101/30
CPCB01J20/20B01J20/226B01J20/28023B01J20/30C02F1/283C02F2101/308
Inventor 盖方圆殷丽敖玉辉赵振波
Owner CHANGCHUN UNIV OF TECH
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