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Aluminum-based metal organic frame-graphene oxide composite material, as well as preparation method and application thereof

An organic framework and composite material technology, applied in the field of materials science and engineering, can solve the problems of composite material preparation failure and other problems, and achieve the effects of easy large-scale production, short time consumption, and excellent adsorption performance

Inactive Publication Date: 2017-05-17
SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of forming MOFs materials, the organic ligands often contain a large number of carboxyl or amino groups, which may directly dehydrate with the oxygen-containing functional groups on GO and prevent GO from coordinating with metal ions, resulting in the failure of the preparation of composite materials.

Method used

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  • Aluminum-based metal organic frame-graphene oxide composite material, as well as preparation method and application thereof
  • Aluminum-based metal organic frame-graphene oxide composite material, as well as preparation method and application thereof
  • Aluminum-based metal organic frame-graphene oxide composite material, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Dissolve 7.60g of aluminum nitrate and 5.0g of terephthalic acid in 300mL of N,N'-dimethylformamide, stir evenly to dissolve completely, stir and react at a constant temperature of 130°C for 12 hours, and cool naturally to room temperature. The filtered product was washed three times with N,N'-dimethylformamide and three times with methanol, and activated under vacuum for 12 hours to obtain a sample and mark it as MIL-68(Al)-1.

Embodiment 2

[0042]Dissolve 5.00g of aluminum chloride and 5.0g of terephthalic acid in 300mL of N,N'-dimethylformamide, stir evenly to dissolve completely, stir and react at a constant temperature of 130°C for 12 hours, and cool naturally to room temperature. The filtered product was washed three times with N,N'-dimethylformamide and three times with methanol, and activated under vacuum for 12 hours to obtain a sample and mark it as MIL-68(Al).

Embodiment 3

[0043] Example 3: Preparation of Al-based metal-organic framework@graphene oxide composite

[0044] Dissolve 5.00g of aluminum chloride and 5.0g of terephthalic acid in 300mL of N,N'-dimethylformamide, stir evenly to dissolve completely. Then 0.23 g of graphene oxide powder was added and ultrasonically treated to react the mixture; stirred and reacted at a constant temperature of 130° C. for 12 hours, and cooled naturally to room temperature. The filtered product was first washed with N,N'-dimethylformamide for 3 times, deionized water for 3 times, activated at 110°C for 12 hours under vacuum, and labeled as MIL-68(Al)@GO-1 .

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Abstract

The invention belongs to the field of material science and engineering, and discloses a method for preparing an Al-based metal organic frame-graphne oxide composite material and application thereof. The method comprises the following steps of: (1) adding an organic ligand and soluble aluminum salt into N,N'-dimethyl formamide, stirring and dissolving to obtain a reaction matrix solution; and (2) adding dried graphene oxide powder into the reaction matrix solution obtained in the step (1) to obtain a reaction mixed solution, heating to react to obtain a primary product of the aluminum-based metal organic frame-graphene oxide composite material, washing, heating and activating to obtain the aluminum-based metal organic frame-graphene oxide composite material. The method is simple and easy to operate, is short in time for the preparing process, can be product in large scale; the prepared material has excellent performance, and can be applied as an adsrobent to removal of methyl orange dye molecules in water.

Description

technical field [0001] The invention belongs to the field of material science and engineering, and in particular relates to a preparation method of an Al-based metal-organic framework@graphene oxide composite material and its application in absorbing methyl orange dye in water. Background technique [0002] Azo dyes are widely used in industries such as textile, paper, printing, food, and cosmetics. The discharge of high-chroma dye wastewater into the environment not only seriously affects water quality, but also has toxic effects on organisms and even "three-caused" effects. At present, the types of azo dyes are becoming more and more complex, and the ability of anti-photolysis, anti-oxidation, and anti-biodegradation is continuously enhanced, and the difficulty of azo dye wastewater treatment is also increasing. For the treatment of high-concentration azo dye wastewater in water, existing methods include coagulation, biodegradation, precipitation and chemical oxidation. I...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F101/34C02F101/38
CPCB01J20/226B01J20/20B01J2220/46C02F1/28C02F1/281C02F1/285C02F2101/308C02F2101/34C02F2101/38
Inventor 程建华武士川郑华生张鹏
Owner SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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