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Aluminum base MOFs/oxidized graphene composite material and preparation method and application thereof

A composite material and graphene technology, applied in the field of material science and engineering, can solve the problems of inability to remove DMF molecules, large amount of organic solvents used, environmental pollution, etc., to achieve optimized structure and performance, shorten reaction time, and fully utilize solvents Effect

Inactive Publication Date: 2017-08-11
广东星帮尼科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current method for preparing metal-organic framework / graphene oxide composites almost uses N,N-dimethylformamide (DMF) as the reaction solvent. After the reaction, DMF molecules will remain in the pores of the material or on the surface, and the boiling point of DMF Above 150°C, conventional heating (≈100°C) volatilization and purification cannot remove DMF molecules, so it needs to be cleaned with solvents many times to obtain purified materials. At the same time, the amount of organic solvents used is large and easy to cause environmental pollution

Method used

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  • Aluminum base MOFs/oxidized graphene composite material and preparation method and application thereof
  • Aluminum base MOFs/oxidized graphene composite material and preparation method and application thereof
  • Aluminum base MOFs/oxidized graphene composite material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Example 1 Preparation of aluminum-based metal-organic framework / graphene oxide composite material

[0048]Disperse 1.5 mg of graphene oxide powder in 21 mL of propanol. After ultrasonic dispersion, add 4.40 g of aluminum chloride and 0.61 g of terephthalic acid. The speed of / h is raised from 60°C to 140°C, the temperature is kept at 140°C for 10h, and then naturally cooled to room temperature. The filtered product was washed 3 times with deionized water, each time for 1 h, and dried at 100°C for 10 h, and the obtained sample was labeled as MIL-68(Al) / GO-1.

Embodiment 2

[0049] Example 2 Preparation of aluminum-based metal-organic framework / graphene oxide composite material

[0050] Disperse 1.5 mg of graphene oxide powder in 21 mL of propanol. After ultrasonic dispersion, add 4.40 g of aluminum chloride and 1.53 g of terephthalic acid. The speed of / h is raised from 60°C to 140°C, the temperature is kept at 140°C for 10h, and then naturally cooled to room temperature. The filtered product was washed 3 times with deionized water for 3 hours each time, and dried at 110°C for 10 hours, and the obtained sample was labeled as MIL-68(Al) / GO-2.

Embodiment 3

[0051] Example 3 Preparation of aluminum-based metal-organic framework / graphene oxide composite material

[0052] Disperse 1.5 mg of graphene oxide powder in 21 mL of propanol. After ultrasonic dispersion, add 6.68 g of aluminum nitrate and 0.61 g of terephthalic acid. The rate of h increased from 60°C to 130°C, kept at 130°C for 10 hours, and cooled naturally to room temperature. The filtered product was washed 3 times with deionized water for 3 hours each time, and dried at 110°C for 10 hours, and the obtained sample was labeled as MIL-68(Al) / GO-3.

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Abstract

The invention discloses an aluminum base MOFs / oxidized graphene composite material and a preparation method and application thereof. The preparation method comprises the following steps: (1) uniformly dispersing oxidized graphene in a low-boiling-point organic solvent to obtain oxidized graphene dispersion; (2) dissolving a soluble aluminum salt and an organic ligand in the oxidized graphene dispersion to obtain a reaction matrix solution after the dissolution is complete; (3) heating the reaction matrix solution, and allowing isothermal reaction under a high pressure condition for a period of time to obtain a primary product; and (4) filtering the primary product, washing, and activating to obtain a purified aluminum base organic framework / oxidized graphene composite material. The preparation method is simple, easy to operate, economic and environment-friendly, the reaction time is shortened, the usage of the organic solvent is reduced, and the obtained composite material has better crystal form and properties. Meanwhile, the effect of the composite material to adsorb toluene in the air is significantly effective, and the composite material has good application prospects in the aspect of air pollution treatment.

Description

technical field [0001] The invention belongs to the field of material science and engineering, in particular to an aluminum-based MOFs / graphene oxide composite material and its preparation method and application. Background technique [0002] With the rapid development of my country's economy and the continuous improvement of the level of urbanization, people's lifestyles are undergoing drastic changes, and people's requirements for interior decoration are getting higher and higher. Various interior decoration materials are used in large quantities, causing serious of indoor air pollution. As far as our country is concerned, the main cause of indoor air pollution is poor decoration, that is, the use of decorative materials that contain a large amount of harmful substances such as formaldehyde, benzene series, ammonia, etc. during the decoration process, making the problem of indoor air pollution increasingly prominent. Serious indoor air pollution poses a huge threat to peop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30B01D53/02
CPCB01D53/02B01D2257/7027B01J20/20B01J20/226B01J20/28073B01J2220/46
Inventor 吴隐武士川程建华
Owner 广东星帮尼科技股份有限公司
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