Method for preparing dye absorption material

A technology for adsorbing materials and dyes, applied in chemical instruments and methods, adsorbed water/sewage treatment, water pollutants, etc., can solve the problem of neglecting the excellent performance of rushes, and achieve the effect of rich content, wide distribution and good heat insulation

Inactive Publication Date: 2019-03-19
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This genus is widely distributed and rich in resources. At present, there are many researches on its chemistry and pharmacology, but the excellent performance of rushes as natural porous cellulose fibers is ignored.

Method used

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Examples

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preparation example Construction

[0023] A kind of preparation method of dye adsorption material, the concrete steps of preparation process are as follows:

[0024] a preparation of washing liquid

[0025] Mix the alcoholic organic solvent and water, stir evenly, and prepare washing liquid, wherein, the bath ratio of the washing liquid is 1:20-1:50, and the volume ratio of the alcoholic organic solvent and water is 10%:90%-40 %: 60%, the stirring rate is 100-250r / min, and the stirring time is 10-30min. The alcoholic organic solvent is one of ethanol or isopropanol.

[0026] b Pretreatment of rush fibers

[0027] Place the rush fiber in the washing solution prepared in step a for washing and then drying, wherein the washing temperature is 20-35°C, the washing time is 10-30min, the drying temperature is 35-45°C, and the drying The time is 10-30 minutes.

[0028] Preparation of c chitosan solution Chitosan and acetic acid are placed in the solution that alcoholic organic solvent and water mix, obtain chitosan...

Embodiment 1

[0032]According to the above process steps: mix 1mL of ethanol with 9mL of water, stir at 100r / min for 10min, and prepare washing liquid, then put 0.5g of rush in the washing liquid, wash at 20°C for 10min, and dry at 45°C for 10min to obtain the washed wick Grass, mix 10mL of ethanol and 90mL of water, add 1g of chitosan and 1mL of acetic acid, stir at 20°C for 1h, to obtain a chitosan solution, soak the washed rush fibers in the chitosan solution, 20°C, 10r / Stir for 20 minutes, pre-baked at 50°C for 50 minutes, and then baked at 100°C for 5 minutes to obtain a chitosan-modified rush dye adsorption material.

Embodiment 2

[0034] According to the above process steps: mix 4mL of ethanol with 6mL of water, stir at 150r / min for 10min, and prepare washing liquid, then put 0.5g of rush in the washing liquid, wash at 25°C for 20min, and dry at 40°C for 20min to obtain the washed wick Grass, mix 20mL ethanol and 80mL water, add 2g chitosan and 2mL acetic acid and stir at 30°C for 5h to obtain a chitosan solution, soak the washed rush fiber in the chitosan solution, stir at 30°C, 50r / min 40min, 50°C for 5min, and then 120°C for 5min to obtain the chitosan-modified rush dye adsorption material.

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Abstract

The invention relates to a method for preparing a dye absorption material and belongs to the technical field of preparation of composite materials. The method disclosed by the invention comprises thefollowing steps: washing juncus roemerianus with an alcohol organic solvent, and modifying the juncus roemerianus with chitosan of the alcohol organic solvent. The juncus roemerianus fiber adopted inthe invention has a three-dimensional porous structure, high specific surface area and high porosity and also has excellent adsorption property. According to the chitosan modification method disclosedby the invention, the porous structure of the juncus roemerianus can be effectively utilized, the adsorption amount of the juncus roemerianus fibers on the chitosan is improved, preparation of an absorption material matrix is reduced, the production process is simple and short in production procedures, and the manufacturing cost is low. The chitosan modified juncus roemerianus fiber material prepared by the invention is stable in performance, and has excellent adsorption property on dye liquor.

Description

technical field [0001] The invention relates to a preparation method of a dye adsorption material, belonging to the technical field of composite material preparation. Background technique [0002] With the continuous development of textile, leather and other industries, a large amount of dye wastewater is discharged into the water body environment. Due to the variety of industrial dyes and complex components, it is difficult to remove them from the water body, thereby disturbing and destroying the biological growth environment in the water body. Cause serious water pollution. Therefore, the treatment and recycling of dye wastewater is of great significance to the sustainable development of enterprises and environmental protection. At present, the commonly used dye wastewater treatment methods in industry mainly include physical, chemical and biological treatment methods. Among them, the adsorption method in the physical treatment method is the most direct and effective tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/30
CPCB01J20/24C02F1/286C02F2101/308
Inventor 徐卫林周思婕夏良君付专刘斯年
Owner WUHAN TEXTILE UNIV
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