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A kind of preparation method of the functional fiber material used for aqueous phase dye decolorization

A technology of fiber materials and functional fibers, applied in the field of preparation of functional fiber materials, to achieve good application prospects, easy reuse, and high decolorization effect

Active Publication Date: 2022-03-18
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a kind of preparation method of the functional fiber material that is used for the decolorization of water-phase dyestuff, it is used for the decolorization of water-phase organic dyestuff, to solve printing and dyeing in water recycling or water-soluble dyestuff in waste water bring Chromaticity problem, to achieve the purpose of saving water and reducing pollutant discharge, in order to solve the problems raised in the above-mentioned background technology

Method used

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  • A kind of preparation method of the functional fiber material used for aqueous phase dye decolorization

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preparation example Construction

[0025] see figure 1 , the present invention provides a technical solution: a method for preparing a functional fiber material for aqueous dye decolorization, comprising the following steps:

[0026] A. Fiber material pretreatment: the fiber material is subjected to impurity removal pretreatment;

[0027] B. In-situ growth of amination-modified ZIF-8 on the fiber: load the amination-modified ZIF-8 on the pretreated fiber by in-situ growth method, wash with water, and dry to prepare a functional fiber material .

[0028] Specifically, the fiber material is ultrasonically treated at 80-90° C. for 10-15 minutes with 2 g / L washing powder at a bath ratio of 10:1, and the fiber material is pretreated for impurity removal, washed with water, and then dried.

[0029] Weigh 2-4g zinc nitrate hexahydrate and add it to 100-150mL methanol, sonicate for 5-10min, record it as solution A, weigh 1-3g 2-methylimidazole and add it to 100-150mL methanol, sonicate for 5-10min, Denote it as solu...

Embodiment 1

[0030] Example 1, the viscose woven fabric was ultrasonically treated at 90° C. for 15 minutes with 2 g / L washing powder at a bath ratio of 10:1, washed with water and then dried.

[0031] In situ growth of aminated ZIF-8 on the fabric, weigh 2.97g of zinc nitrate hexahydrate and add it to 100mL of methanol, sonicate for 5min, record it as solution A, weigh 1.64g of 2-methylimidazole and add it to 100mL of methanol , sonicated for 5 minutes, and recorded as solution B, 0.2 mL of ethylenediamine was dropped into solution B, ultrasonicated for 5 minutes, and recorded as solution C; 0.4 g of pretreated viscose fabric was immersed in solution A, ultrasonicated for 20 minutes, Under certain conditions, solution C was slowly added dropwise to solution A soaked in the fabric, and reacted at room temperature for 20 hours. After the reaction, the viscose fabric was taken out, washed with water, and dried.

[0032] In order to investigate the decolorization effect of the prepared functi...

Embodiment 2

[0033] Example 2, the viscose woven fabric was ultrasonically treated at 90° C. for 15 minutes with 2 g / L washing powder at a bath ratio of 10:1, washed with water and then dried.

[0034] In situ growth of aminated ZIF-8 on viscose woven fabrics, weigh 2.97g of zinc nitrate hexahydrate and add it to 100mL of methanol, ultrasonic for 5min, record it as solution A, weigh 2.05g of 2-methylimidazole and add it to In 100mL of methanol, sonicate for 5min, and record it as solution B; drop 0.3mL of ethylenediamine into solution B, and sonicate for 10min, and record it as solution C; immerse 0.5g of pretreated viscose fabric in solution A, and sonicate for 30min, Under the condition of magnetic stirring, the solution C was slowly added dropwise to the solution A soaked in the fabric, and reacted at room temperature for 25 hours. After the reaction, the viscose fabric was taken out, washed with water, and dried.

[0035] In order to investigate the decolorization effect of the prepare...

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Abstract

The invention discloses a preparation method of a functional fiber material used for the decolorization of aqueous dyes, which comprises the following steps: A, fiber material pretreatment: performing impurity removal pretreatment on the fiber material; B, in-situ growth amination modification on the fiber Non-toxic zeolite imidazolate framework material (ZIF-8): The amination-modified ZIF-8 is loaded onto the pretreated fiber by the in-situ growth method, washed with water, and dried to obtain a functional fiber material. In the present invention, the ZIF-8 modified by ethylenediamine is loaded on the fiber in situ to prepare a functional fiber material, and the ZIF-8 can effectively absorb and degrade organic dyes under the irradiation of visible light by utilizing the adsorption performance and photocatalytic performance of ZIF-8 to dyes, It can be used for decolorization of dyestuffs in printing and dyeing water reuse or wastewater. The invention has simple preparation process, good decolorization effect on dye liquor and can be reused.

Description

technical field [0001] The invention relates to the technical field of functional fiber materials, in particular to a preparation method of functional fiber materials used for decolorization of aqueous dyes. Background technique [0002] In today's world, the rapid development of the global economy and the expansion of industrial scale have brought about problems such as energy shortage and environmental pollution, threatening the safety of human life. Solar energy is abundant, easy to obtain, and clean, and the use of solar energy is of great significance to solving these crises. Photocatalytic technology, as a new type of green environmental protection technology, converts organic pollutants in wastewater into harmless inorganic substances by consuming solar energy, avoiding secondary pollution, and is considered to be a promising strategy to alleviate environmental pollution problems . Since the 1980s, the preparation and application of photocatalysts have attracted ext...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/37C02F1/30C02F1/28C02F101/30D06M101/06
CPCD06M15/37C02F1/30C02F1/288C02F2101/308C02F2305/10D06M2101/06
Inventor 王春梅娄娅娅王静吴云董艳超李龙飞宋文英
Owner NANTONG UNIVERSITY
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