A kind of indium-based metal-organic framework/graphite-like phase nitrogen carbide nanosheet composite material and its preparation method and application

A technology of organic frameworks and composite materials, applied in organic compound/hydride/coordination complex catalysts, chemical instruments and methods, catalyst activation/preparation, etc. Photocatalytic activity, uneven dispersion and other problems, to achieve the effect of broadening the range of visible light absorption, improving photocatalytic activity, and increasing specific surface area

Active Publication Date: 2022-03-08
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

but there is g-C 3 N 4 The problem of easy agglomeration and uneven dispersion in MOF affects the transfer of photogenerated electrons and holes between materials, thus limiting the improvement of photocatalytic activity of materials

Method used

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  • A kind of indium-based metal-organic framework/graphite-like phase nitrogen carbide nanosheet composite material and its preparation method and application
  • A kind of indium-based metal-organic framework/graphite-like phase nitrogen carbide nanosheet composite material and its preparation method and application
  • A kind of indium-based metal-organic framework/graphite-like phase nitrogen carbide nanosheet composite material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] g-C 3 N 4 / MIL-68(In)-NH 2 preparation of

[0044] Accurately weigh 0.04g graphite-like phase carbonized nitrogen nanosheets and disperse them in 6.5mL N,N′-dimethylformamide, stir vigorously for 1.5h to form a uniform light yellow suspension, then ultrasonicate for 3h to further disperse evenly . 0.578 g of indium nitrate hydrate and 0.118 g of 2-aminoterephthalic acid were simultaneously added to the solution, and the above stirring and ultrasonic operations were repeated. The resulting mixture was transferred to a 50 mL autoclave, heated continuously at 130° C. for 18 h, cooled to room temperature, and suction filtered to obtain the initial product. The initial product was washed three times with 50mL N,N'-dimethylformamide and methanol respectively, and dried in a vacuum oven for 24 hours to obtain the indium-based metal organic framework / graphite-like phase nitrogen carbide nanosheet composite.

Embodiment 2

[0046] g-C 3 N 4 / MIL-68(In)-NH 2 preparation of

[0047] Accurately weigh 0.08g of graphite-like phase nitrogen carbide nanosheets and 1.245g of indium nitrate hydrate and disperse them in 13mL of N,N′-dimethylformamide, stir vigorously for 2h to form a uniform light yellow suspension, then ultrasonicate for 4h Make it evenly dispersed. Then 0.236 g of 2-aminoterephthalic acid was added to the solution, and the above stirring and ultrasonic operation were repeated. The resulting mixture was transferred to a 50 mL autoclave, heated continuously at 110° C. for 12 h, cooled to room temperature, and suction filtered to obtain the initial product. The initial product was washed three times with 100mL N,N'-dimethylformamide and methanol respectively, and dried in a vacuum oven for 24 hours to obtain the indium-based metal organic framework / graphite-like phase nitrogen carbide nanosheet composite.

Embodiment 3

[0049] g-C 3 N 4 / MIL-68(In)-NH 2 preparation of

[0050] Accurately weigh 0.12g of graphite-like phase nitrogen carbide nanosheets, 1.743g of indium nitrate hydrate and 0.345g of 2-aminoterephthalic acid and disperse them in 15mL of N,N′-dimethylformamide, stir vigorously for 4h to form a uniform After the light yellow suspension, sonicate for 6 hours to make it thoroughly dispersed. The resulting mixture was transferred to a 50 mL autoclave, heated continuously at 140° C. for 6 h, cooled to room temperature, and suction filtered to obtain the initial product. The initial product was washed three times with 100mL N,N′-dimethylformamide and methanol respectively, and dried in a vacuum oven for 24 hours to obtain the indium-based metal organic framework / graphite-like phase nitrogen carbide nanosheet composite.

[0051] g-C prepared by Comparative Examples 1 to 3 of the present invention and Examples 1 to 3 3 N 4 Nanosheet, MIL-68(In)-NH 2 and g-C 3 N 4 / MIL-68(In)-NH ...

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Abstract

The invention belongs to the field of photocatalytic materials, and discloses an indium-based metal organic framework / graphite-like phase nitrogen carbide nanosheet composite material and a preparation method and application thereof, comprising the following steps: (1) preparing graphite-like phase nitrogen carbide nanosheets; (2) Preparation of indium-based metal organic framework / graphite-like phase nitrogen carbide nanosheet composite material; (3) Continuous heating of the mixed solution obtained in step (2) at 110-140°C for 6h-24h, and suction filtration after cooling to obtain the initial product; (4) washing and purifying the initial product obtained in step (3) with a solvent, and drying in vacuum to obtain the final product. The invention has low cost and simple preparation method, and the obtained composite material has excellent photocatalytic performance, and has remarkable effect in completely degrading ibuprofen-containing wastewater.

Description

technical field [0001] The invention relates to an indium-based metal organic framework / graphite-like phase nitrogen carbide nanosheet composite material and a preparation method and application thereof, specifically belonging to the field of photocatalytic material preparation. Background technique [0002] Drugs are essential to maintain public health and quality of life. In recent years, with the development of society and the improvement of living standards, the use of drugs has increased year by year, followed by a large number of residual drugs through pharmaceutical factories, medical treatment Garbage, waste water and excrement enter the environment, posing a potential threat to the ecological environment and human health. Ibuprofen is one of the most frequently detected non-steroidal anti-inflammatory drugs in the global environment. Because of its low toxicity, curative effect and side effects are superior to aspirin and paracetamol, it can be widely used worldwide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/24B01J31/22B01J37/08B82Y30/00B82Y40/00C02F1/30C02F101/34
CPCB01J27/24B01J31/1691B01J31/1616B01J31/2239B01J37/082B01J35/004B82Y30/00B82Y40/00C02F1/30B01J2531/33C02F2305/10C02F2101/34
Inventor 程建华曹雯张继勇周心慧
Owner SOUTH CHINA UNIV OF TECH
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