Preparation method and application of indium-based metal organic framework material

An organic framework and metal-based technology, which is applied in the field of preparation of indium-based metal-organic framework materials, can solve the problems of low utilization rate of coalbed methane, poor separation effect, and environmental pollution

Active Publication Date: 2021-05-11
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, in order to solve the low utilization rate of coalbed methane and pollute the environment in the prior art, CH in coalbed methane 4 and N 2 Due to the problems of high energy consumption and

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  • Preparation method and application of indium-based metal organic framework material
  • Preparation method and application of indium-based metal organic framework material
  • Preparation method and application of indium-based metal organic framework material

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preparation example Construction

[0025] A method for preparing an indium-based metal organic framework material in an embodiment of the present invention includes the following steps:

[0026] Synthesis of indium metal clusters: Dissolve anhydrous sodium formate and indium trichloride in water respectively to obtain sodium formate solution and indium trichloride solution; then drop the sodium formate solution into the indium trichloride solution, heat and stir , to obtain a suspension; the suspension is suction filtered, and the filter residue is taken; the filter residue is washed and dried to obtain indium metal clusters;

[0027] Synthesis of indium-based metal organic framework materials: disperse the indium metal clusters in N,N-dimethylformamide to obtain the first mixed solution; disperse benzophenone-4,4'-dicarboxylic acid in N , in N-dimethylformamide, to obtain a second mixed solution; then the second mixed solution is added dropwise to the first mixed solution, and formic acid and H are added 2 0,...

Embodiment 1

[0044] A method for preparing an indium-based metal organic framework material, comprising the steps of:

[0045] (1) Synthesis of indium metal clusters: Dissolve 22.12g of indium trichloride in 60mL of water to obtain an indium trichloride solution; dissolve 21.08g of anhydrous sodium formate in 60mL of water to obtain a sodium formate solution; drop the sodium formate solution into In the indium trichloride solution, heat to 40°C and stir for 10 hours to obtain a suspension; filter the suspension with suction and take the filter residue; wash the filter residue with 30mL deionized water and 30mL ethanol in sequence; finally, place at 120°C Dry in an oven for 8 hours to obtain indium metal clusters.

[0046] (2) Synthesis of indium-based metal-organic framework materials: ultrasonically disperse 0.1770g of indium metal clusters in 0.3555g of DMF to obtain the first mixed solution; ultrasonically disperse 0.1770g of benzophenone-4,4'-dicarboxylic acid In 0.3555g DMF, obtain t...

Embodiment 2

[0048] A method for preparing an indium-based metal organic framework material, comprising the steps of:

[0049] (1) Synthesis of indium metal clusters: Dissolve 66.40g of indium trichloride in 60mL of water to obtain an indium trichloride solution; dissolve 21.08g of anhydrous sodium formate in 60mL of water to obtain a sodium formate solution; drop the sodium formate solution into In the indium trichloride solution, heat to 60° C. and stir for 18 hours to form a suspension; then suction-filter the suspension to take the filter residue; wash the filter residue with 30mL deionized water and 30mL ethanol in sequence; finally, place Dry in an oven at 150°C for 16 hours to obtain indium metal clusters.

[0050] (2) Synthesis of indium-based metal-organic framework materials: ultrasonically disperse 0.5280g of indium metal clusters in 2.1330g of DMF to obtain the first mixed solution; disperse 0.5280g of benzophenone-4,4'-dicarboxylic acid in 2.1330 In g DMF, the second mixed so...

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Abstract

The invention provides a preparation method and application of an indium-based metal organic framework material, and the preparation method comprises the following steps: dropwise adding a sodium formate solution into an indium trichloride solution, heating and stirring to obtain an indium metal cluster; dispersing the indium metal cluster in N, N-dimethylformamide to obtain a first mixed solution; dispersing benzophenone-4, 4' -dicarboxylic acid in N, N-dimethylformamide to obtain a second mixed solution; and dropwise adding the second mixed solution into the first mixed solution, adding formic acid and H2O, transferring into a high-pressure reaction kettle, and performing solvothermal synthesis reaction to obtain the indium-based metal organic framework material. The indium-based metal organic framework material prepared by the method has high adsorption selectivity on adsorption and separation of CH4 and N2, under the same condition, the adsorption selectivity on CH4 and N2 is more than 7.5 times of the selectivity of traditional adsorption materials such as a carbon molecular sieve, and the material has excellent water vapor stability. The indium-based metal organic framework material is applied to separation of CH4 and N2 in coal bed gas and has an excellent separation effect.

Description

technical field [0001] The invention relates to the technical field of gas adsorption and separation, in particular to a preparation method and application of an indium-based metal organic framework material. Background technique [0002] Commonly known as "gas", coalbed methane is an unconventional natural gas adsorbed or dissociated near coal seams, whose main components are methane and nitrogen. my country's coalbed methane resources are extremely rich, with a storage capacity of 37 trillion m 3 . With the optimization and upgrading of the energy structure, my country's demand for natural gas continues to increase, and domestic natural gas is in short supply. As a kind of unconventional natural gas, coalbed methane is highly valued by the state for its industrial development. The mining method of coalbed methane in my country is mainly underground drainage, but the methane concentration of 60% of the mined coalbed methane is lower than 30%, which needs to be purified b...

Claims

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Application Information

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IPC IPC(8): C07C51/41B01D53/04C07C7/12C07C9/04C01B21/04
CPCC07C51/418B01D53/04C07C7/12C01B21/04C07C9/04
Inventor 吕道飞陈忻袁文兵许锋颜健许军豪
Owner FOSHAN UNIVERSITY
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