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Synthesis method for metal organic framework material MIL-53 (Al)

A technology of MIL-53 and metal organic framework, which is applied in the field of synthesis of metal organic framework material MIL-53, can solve the problems that are not suitable for industrial production and restrict large-scale industrial synthesis, and achieve the effect of improving service life and utilization rate

Active Publication Date: 2016-03-09
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its synthesis temperature and crude product activation method are still the same as method 1 and method 2 (220°C and organic solvent activation method), harsh reaction conditions of high temperature and high pressure and high-cost crude product activation method still restrict the development of MIL-53(Al). large-scale industrial synthesis
[0008] However, the above-disclosed MIL-53 (Al) synthesis method is not suitable for industrialized production from the perspective of production equipment requirements and cost

Method used

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  • Synthesis method for metal organic framework material MIL-53 (Al)
  • Synthesis method for metal organic framework material MIL-53 (Al)

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] The molar ratio of aluminum hydroxide, terephthalic acid, formic acid and water used in this example is 1:1:1:160.

[0033] A kind of synthetic method of metal organic framework material MIL-53 (Al), this method comprises the steps:

[0034] (1) Mix aluminum hydroxide, terephthalic acid and water and stir thoroughly to disperse the aluminum-containing compound and organic carboxylic acid evenly in pure water; add formic acid to the above reactant solution and stir well, then move it into a stainless steel reaction kettle for Hydrothermal synthesis, the reaction temperature is 150°C, the reaction time is 72h, stop heating and cool to room temperature, and the solid obtained by solid-liquid separation is the crude product, which is placed in an oven at 80°C to dry;

[0035] (2) Put the crude product obtained in step (1) into a high-temperature furnace for calcination in an air atmosphere at a calcination temperature of 330° C. for a calcination time of 72 hours, and cool ...

Embodiment 2

[0039] The molar ratio of aluminum hydroxide, terephthalic acid, formic acid and water used in this example is 1:1:1:160.

[0040] A kind of synthetic method of metal organic framework material MIL-53 (Al), this method comprises the steps:

[0041] (1) Mix aluminum hydroxide, terephthalic acid and water and stir thoroughly to disperse the aluminum-containing compound and organic carboxylic acid evenly in pure water; add formic acid to the above reactant solution and stir well, then move it into a stainless steel reaction kettle for Hydrothermal synthesis, reaction temperature 150°C, reaction time 72h, solid-liquid separation after cooling to room temperature to obtain the crude product; the obtained crude product was activated under hydrothermal conditions at 150°C for 24 hours and then dried in an oven at 80°C;

[0042] (2) Put the product obtained in step (1) into a high-temperature furnace for calcination in an air atmosphere at a calcination temperature of 330° C. for a ca...

Embodiment 3

[0045] A synthetic method of metal-organic framework material MIL-53 (Al), which is basically the same as in Example 1, except that the molar ratio of aluminum hydroxide, terephthalic acid, formic acid and water used in this example is 0.5 :1:0.5:150. The method has simple process, moderate cost, relatively low synthesis temperature and reaction pressure.

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Abstract

The present invention belongs to the technical field of preparation of metal organic framework materials, particularly relating to a synthesis method for a metal organic framework material MIL-53 (Al) coordinated with aromatic organic carboxylic acid and aluminum. The structural formula of the metal organic framework material MIL-53 (Al) is Al (OH) [O2C-C6H4-CO2]. The method comprises the following steps: taking aluminum hydroxide and terephthalic acid as raw materials and acid as an auxiliary; preparing MIL-53 (Al) by a hydrothermal method; and activating at high temperature to obtain the metal organic framework MIL-53 (Al) with open channels. According to the method provided by the present invention, a water-insoluble metallic aluminum source is used as a precursor, and an acid auxiliary is used cooperatively; and compared with the existing synthesis method, the method has the advantages of low raw material cost, relatively mild conditions, energy conservation and environment protection and the like, solves the existing problem in a current MIL-53 (Al) synthesis process, and has a potential industrial production prospect.

Description

technical field [0001] The invention relates to the technical field of preparation of metal organic framework materials, in particular to a synthesis method of metal organic framework material MIL-53(Al). Background technique [0002] Metal-organic frameworks (Metal-Organic Frameworks, MOFs) is an inorganic-organic composite material, which is composed of metal ions and organic ligands to form a static porous material with a periodic network structure through self-assembly behavior. Due to the combination of the pore structure of the periodic network and the properties of the organic material skeleton, the biggest feature of MOFs materials is their ultra-high porosity and huge internal specific surface area. In recent years, the synthesis and application of porous materials have become more and more extensive. MOFs materials have great potential in hydrogen storage, drug delivery, catalysis, and selective separation due to their tunable pore shape, size, and rich pore skelet...

Claims

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Application Information

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IPC IPC(8): C07F5/06
CPCC07F5/069
Inventor 吴一楠李风亭张冰如卢慧宫顾逸凡李杰
Owner TONGJI UNIV
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