A nanoscale aluminum-based metal-organic framework material and its preparation method

An organic framework, nanoscale technology, applied in the fields of magnetism, nanotechnology, organic chemistry, etc.
CN104497032BInactive Publication Date: 2016-03-16CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Publication Date
2016-03-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

A nanoscale aluminium-based metal-organic framework structure material and its preparation method belong to the field of new material technology. The preparation method comprises the following steps: weighing an organic aluminum source and 1,4-terephthalic acid and putting them in a teflon reaction vessel, adding a solvent, and uniformly mixing by stirring, ultrasound or concussion, wherein the molar ratio of aluminium in the organic aluminum source to 1,4-terephthalic acid is 1.5-4:1 and the solvent is a mixture of water and ethanol which accounts for 0-50% (vol) of the mixed solvent; sealing the reaction vessel, reacting at 200-220 DEG C for 60-80 hours, and cooling to room temperature; and filtering the above reaction liquid, washing precipitates with deionized water and ethanol respectively, drying at room temperature to obtain a light yellow powdery product, namely the nanoscale aluminium-based metal-organic framework structure material. By the above method, release speed of aluminium ion can be controlled effectively, and controllable synthesis of the MIL-53(Al) material can be realized at micro-level by changing the aluminium source.
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Description

technical field

[0001] The invention belongs to the technical field of new materials, and in particular relates to a nanoscale aluminum-based metal-organic framework structure material and a preparation method thereof. Background technique

[0002] Metal-organic framework materials are a kind of coordination polymers that have been developed rapidly in recent decades. Usually, metal ions or metal ion clusters are used as connection points, and organic ligands are used as three-dimensional structures in space. They are zeolites and carbon nanotubes. Another important new class of porous materials. Compared with traditional porous materials, metal-organic framework materials not only have the characteristics of infinite extension, but also exist metal-heteroatom bonds. Based on the above two structural characteristics, metal-organic framework materials also have corresponding physical and chemical properties, such as good thermal stability due to their stable spatial structur...

Claims

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