Preparation method and application of metal-organic framework material

A metal-organic framework, mixed solution technology, applied to 6/16 groups of organic compounds without C-metal bonds, alkali metal compounds, chemical instruments and methods, etc. problems, to achieve the effect of protecting the environment

Inactive Publication Date: 2015-04-22
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] After reviewing a large amount of literature, there is no report on the use of hydro...

Method used

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

Examples

Experimental program
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Embodiment 1

[0022] In this embodiment, the MIL-101 material prepared with hydrochloric acid as a mineralizer has a specific surface area of ​​1636 m 2 / g, the average pore diameter is 2.14nm.

[0023] The preparation method of above-mentioned material is as follows:

[0024] (1) Adding Cr(NO 3 ) 3 9H 2 O and H 2 Dissolve BDC in deionized water at a molar ratio of 1.5:1, slowly add 0.3ml of hydrochloric acid dropwise, stir for 15 minutes, transfer the reactant to a hydrothermal reactor and react at 200°C for 6 hours;

[0025] (2) Suction filter the product, rinse with deionized water three times and dry at room temperature;

[0026] (3) Dissolve the solid in DMF and activate it at 60°C for 5 hours, filter it with suction and wash it with DMF three times, then dry it at room temperature;

[0027] (4) Dissolve the solid in CH 3 CH 2 Activation in OH at 100°C for 16h, suction filtration, vacuum drying at 160°C for 24h to obtain MIL-101 material;

[0028] (5) Weigh 0.025g of the mater...

Embodiment 2

[0031] In this embodiment, the MIL-101 material prepared with hydrochloric acid as a mineralizer has a specific surface area of ​​1498m 2 / g, the average pore diameter is 2.19nm.

[0032] The preparation method of above-mentioned material is as follows:

[0033] (1) Adding Cr(NO 3 ) 3 9H 2 O and H 2 Dissolve BDC in deionized water at a molar ratio of 1:1, slowly add 0.4ml of hydrochloric acid dropwise, stir for 20 minutes, transfer the reactant to a hydrothermal reactor and react at 180°C for 8 hours;

[0034] (2) Suction filter the product, rinse with deionized water three times and dry at room temperature;

[0035] (3) Dissolve the solid in DMF and activate it at 55°C for 5 hours, filter it with suction and wash it with DMF three times, and dry it at room temperature;

[0036] (4) Dissolve the solid in CH 3 Activation in Cl at 120°C for 24h, suction filtration, vacuum drying at 130°C for 24h to obtain MIL-101 material;

[0037] (5) Weigh 0.025g of the material powder...

Embodiment 3

[0039]In this embodiment, the MIL-101 material prepared with hydrochloric acid as a mineralizer has a specific surface area of ​​1512m 2 / g, the average pore diameter is 2.21nm.

[0040] The preparation method of above-mentioned material is as follows:

[0041] (1) Adding Cr(NO 3 ) 3 9H 2 O and H 2 Dissolve BDC in deionized water at a molar ratio of 0.8:1, slowly add 0.5ml of hydrochloric acid dropwise, stir and disperse for 30 minutes, then transfer the reactants to a hydrothermal reactor and react at 160°C for 7 hours;

[0042] (2) Suction filter the product, rinse with deionized water three times and dry at room temperature;

[0043] (3) Dissolve the solid in DMF and activate it at 50°C for 6 hours, filter it with suction and wash it with DMF three times, and dry it at room temperature;

[0044] (4) Dissolve the solid in CH 2 Cl 2 Activation at 80°C for 20h, suction filtration, vacuum drying at 120°C for 24h to prepare MIL-101 material;

[0045] (5) Weigh 0.025g of...

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Abstract

The invention discloses a preparation method of a metal-organic framework material and its application, and belongs to the field of material preparation and water treatment technologies. According to the invention, Cr<3+> is used as metal ion, H2BDC is used as an organic ligand and hydrochloric acid is used as a mineralizer. A porous MIL-101 target material is prepared by a hydrothermal method. The preparation method has advantages of simple synthesis, easy operation, low cost of raw materials, high yield and stable chemical properties of an obtained function material. By using the material to process antibiotics in a water body, the purpose of antibiotics recovery and enrichment can be achieved, and migration of the antibiotics in nature can be inhibited. The material provided by the invention has high research value and application prospect.

Description

technical field [0001] The invention relates to a preparation method and application of a metal organic framework material, belonging to the technical scope of material preparation and water treatment. Background technique [0002] At present, due to the increasing production of antibiotics, serious environmental pollution and unnecessary waste are also becoming more and more serious. The main adsorbents for the adsorption and recovery of antibiotics by physical adsorption include activated carbon, activated mud, humic acids, adsorption resins, multi-walled carbon nanotubes, etc., but these adsorbents have their own shortcomings. Therefore, the research and development of new antibiotic adsorbents has become a Research hotspots. MIL-101 material is expected to be a viable substitute for antibiotic adsorbents due to its good water stability, large specific surface area, and rich microporous structure. [0003] Solvothermal method is the most widely used method for synthesiz...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F1/58
CPCC07F11/005B01J20/226C02F1/285
Inventor 陕绍云吕宏婷贾庆明蒋丽红王亚明
Owner KUNMING UNIV OF SCI & TECH
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