Defective metal-organic framework photocatalyst and preparation method thereof

A technology of metal-organic framework and photocatalyst, which is applied in the direction of organic compound/hydride/coordination complex catalyst, chemical instrument and method, physical/chemical process catalyst, etc. It can solve the problem of poor processing effect of adding electron acceptor technology, Toxic metal ions are easy to dissolve, the environment has potential hazards and other problems, and achieve the effect of novel shape and structure, good use value and application value, and large photocurrent
CN109847801BActive Publication Date: 2020-08-28HUNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN UNIV
Publication Date
2020-08-28

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Abstract

The invention discloses a defective metal organic framework photocatalyst and a preparation method thereof. The defective type metal organic framework photocatalyst is a defective MIL-53 metal organicframework photocatalyst. The preparation method comprises the following steps: with ferric trichloride hexahydrate and terephthalic acid as raw materials and N,N-dimethylformamide as a solvent, carrying out solvothermal reaction under the action of an acid regulator to prepare the defective metal organic framework photocatalyst. The photocatalyst has the advantages of being uniform in mesoporousstructure, high in specific surface area, wide in light absorption range, small in forbidden band width, large in photocurrent, small in impedance, high in photocatalytic activity and the like. The catalyst is a novel visible-light photocatalyst, which is novel in morphology and structure and excellent in photocatalytic performance, and has very good use value and application value. The preparation method has the advantages of simple process, convenience in operation, low cost and the like, is suitable for large-scale preparation and is beneficial to industrial application.
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Description

technical field

[0001] The invention belongs to the field of photocatalyst preparation, and relates to a defect-type metal-organic framework photocatalyst and a preparation method thereof. Background technique

[0002] In recent years, metal-organic frameworks (MOFs), as a class of crystalline porous materials with a periodic network structure formed by self-assembly of inorganic metal centers (metal ions or metal clusters) and bridging organic ligands, have attracted attention. received widespread attention. MILs series (Levasier skeleton material) is a trivalent metal ion (aluminum (Al), iron (Fe), vanadium (V), chromium (Cr ) and terephthalic acid and other carboxylic acid ligands to synthesize a class of MOF materials, the crystals synthesized based on different metal centers have the same crystal structure. MIL-53, as a member of the MIL series, is a kind of Fe(III) as The central metal ion, the MOF composed of octahedral Fe(III) and 1,4-terephthalic acid, has a band ...

Claims

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