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Method for preparing super-hydrophobic fabric@nickel and cobalt double hydroxide composite material and its application

A technology of double hydroxide and composite materials, applied in chemical instruments and methods, separation methods, grease/oily substances/suspton removal devices, etc., can solve the problem of limited types of oily sewage, poor chemical resistance, and separation efficiency No advanced problems, to achieve the effect of simple and easy preparation method, good mechanical properties and wide sources

Inactive Publication Date: 2017-03-22
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many problems in the application of membrane materials based on special wettability, such as poor swelling resistance of the membrane, poor chemical resistance, rapid flux decay, limited types of oily sewage treatment, and low separation efficiency. waiting to be solved

Method used

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  • Method for preparing super-hydrophobic fabric@nickel and cobalt double hydroxide composite material and its application
  • Method for preparing super-hydrophobic fabric@nickel and cobalt double hydroxide composite material and its application
  • Method for preparing super-hydrophobic fabric@nickel and cobalt double hydroxide composite material and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Fabric pretreatment: take an appropriate amount of cotton fabrics, wash them with ethanol and deionized water, and dry them in an oven for subsequent use;

[0027] (2) Fabrication@nickel-cobalt double hydroxide preparation: 2.5mmol nickel chloride (NiCl 2 ·6H 2 O), 5mmol cobalt chloride (CoCl 2 ·6H 2 O), 2mmol cetyltrimethylammonium bromide (CTAB) and 9mmol urea (CO(NH 2 ) 2 ) was dissolved in 50 mL of deionized water. Then transfer the solution to a 100 mL three-neck flask, put a piece of fabric into the flask, and put it into a microwave-ultrasonic-ultraviolet combined catalytic synthesizer for microwave treatment (80°C, microwave 500W) for 30min. After the reaction is complete, the product is taken out, washed with ethanol, and dried at 60°C to obtain fabric@nickel-cobalt double hydroxide; the size of the cotton fabric used can be determined according to the volume of the flask, which is 4cm*4cm in the present invention.

[0028] (3) Preparation of superhyd...

Embodiment 2

[0033] (1) Fabric pretreatment: take an appropriate amount of cotton fabrics, wash them with ethanol and deionized water, and dry them in an oven for subsequent use;

[0034] (2) Fabrication@nickel-cobalt double hydroxide preparation: 2.5mmol nickel chloride (NiCl 2 ·6H 2 O), 5mmol cobalt chloride (CoCl 2 ·6H 2 O), 2mmol cetyltrimethylammonium bromide (CTAB) and 9mmol urea (CO(NH 2 ) 2 ) was dissolved in 50 mL of deionized water. Then transfer the solution to a 100 mL three-neck flask, put a piece of fabric into the flask, and put it into a microwave-ultrasonic-ultraviolet combined catalytic synthesizer for microwave treatment (100°C, microwave 500W) for 20 minutes. After the reaction is complete, the product is taken out, washed with ethanol, and dried at 60°C to obtain fabric@nickel-cobalt double hydroxide; the size of the cotton fabric used can be determined according to the volume of the flask, which is 4cm*4cm in the present invention.

[0035] (3) Preparation of supe...

Embodiment 3

[0037] (1) Fabric pretreatment: take an appropriate amount of cotton fabrics, wash them with ethanol and deionized water, and dry them in an oven for subsequent use;

[0038] (2) Fabrication@nickel-cobalt double hydroxide preparation: 2.5mmol nickel chloride (NiCl 2 ·6H 2 O), 5mmol cobalt chloride (CoCl 2 ·6H 2 O), 2mmol cetyltrimethylammonium bromide (CTAB) and 9mmol urea (CO(NH 2 ) 2 ) was dissolved in 50 mL of deionized water. Then transfer the solution to a 100mL three-neck flask, put a piece of fabric into the flask, and put it into a microwave-ultrasonic-ultraviolet combined catalytic synthesizer for microwave treatment (120°C, microwave 500W) for 10min. After the reaction is complete, the product is taken out, washed with ethanol, and dried at 60°C to obtain fabric@nickel-cobalt double hydroxide; the size of the cotton fabric used can be determined according to the volume of the flask, which is 4cm*4cm in the present invention.

[0039] (3) Preparation of superhyd...

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Abstract

The invention provides a method for preparing a super-hydrophobic fabric@nickel and cobalt double hydroxide composite material and its application. The method comprises the following steps that cotton fabric is taken, washed to be clean with ethyl alcohol and deionized water and dried in a drying oven for use; nickel chloride hexahydrate, cobalt chloride hexahydrate, hexadecyl trimethyl ammonium bromide and urea are dissolved into the deionized water, mixed liquor A is obtained and transferred into a three-neck flask, a piece of fabric is put into the flask, and microwave treatment is conducted; after reacting is conducted, a product is taken out, washing is conducted with ethyl alcohol, drying is conducted, and fabric@nickel and cobalt double hydroxide is obtained; fabric@nickel and cobalt double hydroxide is immersed in an ethyl alcohol solution of stearic acid, oscillation is conducted in an oscillator at room temperature, and the super-hydrophobic fabric@nickel and cobalt double hydroxide composite material is obtained. The preparation method is simple and easy to operate, short in flow, capable of controlling operation easily and suitable for application and popularization.

Description

technical field [0001] The invention relates to a method for preparing superhydrophobic fabric@nickel-cobalt double hydroxide composite material by microwave method and its application, which belongs to the technical field of preparation of environmental functional materials. Background technique [0002] Water resources are a precious and scarce resource, and the sustainable supply of pure water has become the second biggest challenge plaguing mankind in the 21st century. Environmental problems have become a huge challenge for human beings, and these problems are seriously threatening the ecological environment and human health. The treatment and recycling of sewage is undoubtedly a win-win move to solve environmental problems and water shortages. With the rapid development of my country's economy, the consumption of fossil fuels has also increased. The refining and chemical enterprises affiliated to CNOOC process more than 30 million tons of crude oil annually, and produc...

Claims

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Application Information

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IPC IPC(8): C09K3/32B01D17/02C02F1/40
CPCB01D17/02C02F1/40C09K3/32
Inventor 崔久云周志平谢阿田吴易霖张宇峰闫永胜李春香
Owner JIANGSU UNIV
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