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Preparation method of hybrid material, hybrid material and application of hybrid material

A technology of hybrid materials and metal carbonitrides, which is applied in chemical instruments and methods, ether preparation, separation methods, etc., can solve the problems of poor stability of MOFs, limit the application of MOFs, and structural collapse, so as to improve hydrothermal stability, The method is simple and the effect is excellent

Active Publication Date: 2017-03-22
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, studies have shown that most MOFs are less stable
When these MOFs are exposed to moisture, their structure can irreversibly collapse, a shortcoming that limits the applications of MOFs

Method used

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  • Preparation method of hybrid material, hybrid material and application of hybrid material

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preparation example Construction

[0043]Preparation of metal-organic framework HKUST-1: Weigh 0.5000g of copper nitrate trihydrate and 0.2500g of trimesic acid, add 4.25mL of N,N-dimethylformamide, absolute ethanol and water, stir for 1h, The above solution was stirred and reacted at 85° C. for 21 h. The sample was taken out and filtered, washed with N,N-dimethylformamide and absolute ethanol, taken out, soaked in dichloromethane and dried in the air to obtain metal organic framework HKUST-1.

[0044] Preparation of metal-organic framework MOF-5: Weigh 1.2100g of zinc nitrate hexahydrate and 0.3400g of terephthalic acid, add 40mL of N,N-dimethylformamide, stir for 15min, and react at 120°C. The reaction time is 24h. The sample was taken out and filtered, and washed with N,N-dimethylformamide to obtain the metal-organic framework MOF-5.

[0045] Preparation of metal-organic framework MIL-53Al: Weigh 0.7900g of aluminum nitrate nonahydrate and 0.3400g of terephthalic acid, add 40mL of hydrofluoric acid (48wt%)...

Embodiment 1

[0050] MXene-Ti 3 C 2 Preparation: weigh 1g Ti 3 AlC 2 Powder, add 10mL HF (49wt%), after reacting for 24h, wash with deionized water several times until the pH value of the solution is 6. Dry in a vacuum oven at 80°C for 20 hours to obtain MXene-Ti 3 C 2 .

[0051] Weigh 0.5000g of copper nitrate trihydrate, 0.2500g of trimesic acid and 0.0075g of MXene-Ti 3 C 2 , respectively added 4.25mL of N,N-dimethylformamide, absolute ethanol and water, stirred for 1h, and stirred and reacted the above solution at 85°C at 1000-2000rpm for a reaction time of 21h. Take out the sample and filter it, soak and wash it with N,N-dimethylformamide and absolute ethanol, take it out and soak it in dichloromethane and dry it to get the metal organic framework HKUST-1 and MXene-Ti 3 C 2 The hybrid material is calculated to be 85%.

Embodiment 2

[0053] MXene-Ti 3 C 2 Preparation: weigh 1g Ti 3 AlC 2 Powder, add 10mL HF (49wt%), after reacting for 24h, wash with deionized water several times until the pH value of the solution is 6. Dry in a vacuum oven at 80°C for 20 hours to obtain MXene-Ti 3 C 2 .

[0054] Weigh 0.5000g of copper nitrate trihydrate, 0.2500g of trimesic acid and 0.0225g of MXene-Ti 3 C 2 , respectively added 4.25mL of N,N-dimethylformamide, absolute ethanol and water, stirred for 1h, and stirred and reacted the above solution at a temperature of 85°C, and the reaction time was 21h. Take out the sample and filter it, wash it with N,N-dimethylformamide and absolute ethanol, soak it in dichloromethane and dry it to get metal organic framework HKUST-1 and MXene-Ti 3 C 2 The hybrid material was calculated to be 74%.

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Abstract

The invention discloses a preparation method of a hybrid material, the hybrid material and application of the hybrid material. The preparation method comprises the following steps: selectively eroding a MAX phase with hydrofluoric acid to synthesize MXene, and then adding the MXene into a precursor solution for synthesizing an MOF (Metal-Organic Framework) to synthesize the hybrid material. According to the invention, hybridization preparation of the two-dimensional metal carbonitride MXene and MOF hybrid material is performed just by adding the MXene during the synthesizing process of the MOF, the method is simple, and the hydrothermal stability of the MOF can be remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of chemical separation and catalysis, and in particular relates to a preparation method of a hybrid material, the hybrid material and its application. Background technique [0002] Before the end of the 20th century, porous materials were generally divided into two types: inorganic materials and carbonaceous materials. Inorganic materials are represented by zeolite molecular sieves. The global economy largely depends on the application of this material in many industrial production processes. As a carbonaceous artificial material, activated carbon was discovered only after 1900 and 1901. Because of its excellent adsorption and deodorization function, the environmental protection industry became a major application of activated carbon in the second half of the 20th century. However, with the development of the times, traditional porous materials are increasingly unable to meet the needs of contemporary indust...

Claims

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Application Information

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IPC IPC(8): B01J31/38B01J31/36C07C41/01C07C43/178H01G11/30B01J20/22B01J20/30B01D53/02
CPCB01D53/02B01J20/0214B01J20/0248B01J20/0259B01J20/226H01G11/30C07C41/01B01J31/1691B01J31/36B01J31/38B01J2231/70B01J2220/4812B01J2220/4806C07C43/1782Y02E60/13
Inventor 刘晓勤高玉霞孙林兵刘定华
Owner NANJING UNIV OF TECH
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