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Preparation method of lanthanide ion loaded metal-organic framework material capable of realizing lighting adjustability and sensing property

An organic framework and lanthanide technology, applied in the field of preparation of metal-organic framework materials, can solve the problems of immaturity in lanthanide MOFs luminescent sensing research, failure to design and prepare lanthanide luminescent MOFs, etc. Strong repeatability, good regulation, and easy doping operation

Inactive Publication Date: 2013-12-11
EAST CHINA UNIV OF TECH
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Problems solved by technology

[0005] Although the luminescent mechanism of lanthanide ions (coordination between metals and ligands or supramolecular orientation ability) provides ideas for the design and preparation of lanthanide luminescent MOFs, according to the current research status of crystal engineering, it is reasonable to design And the preparation of lanthanide luminescent MOFs has not yet been well realized, and the research on luminescence sensing of lanthanide MOFs at home and abroad is still in an immature stage

Method used

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  • Preparation method of lanthanide ion loaded metal-organic framework material capable of realizing lighting adjustability and sensing property
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  • Preparation method of lanthanide ion loaded metal-organic framework material capable of realizing lighting adjustability and sensing property

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Embodiment 1

[0020] Take 1mmolZn(NO 3 ) 2 ·6H 2 O, 1mmol (NH 4 ) 6 Mo 7 o 24 4H 2 O and 0.5mmol pyromellitic dianhydride are put into a polytetrafluoroethylene reaction kettle, add 10mL water as a solvent, place in a muffle furnace, heat to 200°C, keep the temperature for 144 hours, and dry naturally to obtain a colorless block Crystal complex [NH 4 ] 2 [ZnL]·6H 2 O, where L is pyromellitic acid; the complex [NH 4 ] 2 [ZnL]·6H 2 O Soaked in 10 -3 –10 -6 mol / L EuCl 3 or 10 -3 –10 -7 mol / L Tb(ClO 4 ) 3 In the solution, the lanthanide-doped complexes can be obtained respectively Eu [NH 4 ] 2 [ZnL]·6H 2 O. Tb [NH 4 ] 2 [ZnL]·6H 2 O; the complex Eu [NH 4 ] 2 [ZnL]·6H 2 O. Tb [NH 4 ] 2 [ZnL]·6H 2 O soaked in 10 -2 mol / L MCl x ((M = Na + , K + ,Zn 2+ , Ni 2+ ,Mn 2+ ,Co 2+ ,Cu 2+ ) solution, the lanthanide doped complexes impregnated with metal ions can be obtained respectively M–Eu [NH 4 ] 2 [ZnL]·6H 2 O. M–Tb [NH 4 ] 2 [ZnL]·6H 2 O.

[0021...

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Abstract

The invention discloses a preparation method of a lanthanide ion loaded metal-organic framework material capable of realizing lighting adjustability and sensing property. The preparation method comprises the following steps: with Zn(NO3)2.6H2O, (NH4)6Mo7O24.4H2O and pyromellitic dianhydride as raw materials, complexing all the raw materials to obtain a complex; soaking the complex into an EuCl3 or Tb(ClO4)3 solution to respectively obtain a lanthanide doped complex; and soaking the doped complex into an MClx solution to respectively obtain complexes M-Eu@[NH4]2[ZnL].6H2O and M-Tb@[NH4]2[ZnL].6H2O. According to the invention, a novel lanthanide MOFs molecule with lighting adjustability and sensing property can be obtained through simple soaking; and the lanthanide doping operation is convenient, stable, efficient, strong in repeatability and favorable in control effect on the lighting adjustability and sensing property of MOFs.

Description

technical field [0001] The invention belongs to the field of inorganic chemistry, and in particular relates to a preparation method of a metal-organic framework material loaded with lanthanide ions to realize adjustable luminescence and sensing. Background technique [0002] Due to the advantages of large specific surface area, large pore size and uniform distribution, simple synthesis, and predictable structure, luminescent metal-organic framework materials (MOFs) are destined to have potential in biomedicine, environment, molecular sensing, and light-emitting devices. application value. MOFs materials have two components, organic ligands and inorganic metal ions, and their structural characteristics are more complicated than organic light-emitting materials and inorganic light-emitting materials. Therefore, the luminescence phenomenon of MOFs materials can have multiple origins, such as: luminescence based on organic ligands, luminescence based on lanthanide ions, lumines...

Claims

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Application Information

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IPC IPC(8): C09K11/06G01N21/64
Inventor 罗峰罗明标许文苑刘淑娟
Owner EAST CHINA UNIV OF TECH
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