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A d-p heteronuclear bimetallic organic framework material capable of white light emission and its preparation method

An organic framework, d-p technology, applied in the field of d-p heteronuclear bimetallic organic framework materials and preparation, to achieve the effect of good repeatability, good chemical stability and thermal stability, and simple process

Active Publication Date: 2021-07-27
NORTHWEST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on the existing research work, MOFs with bimetallic nodes are mainly formed by rare earth metal ions and transition metal ions, while heteronuclear HMOFs based on metal ions in p and d regions have not been reported yet.

Method used

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  • A d-p heteronuclear bimetallic organic framework material capable of white light emission and its preparation method
  • A d-p heteronuclear bimetallic organic framework material capable of white light emission and its preparation method
  • A d-p heteronuclear bimetallic organic framework material capable of white light emission and its preparation method

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Embodiment

[0028] This embodiment relates to a method for preparing a d-p heteronuclear bimetallic organic framework material capable of emitting white light, and the method includes the following steps:

[0029] Step 1. At room temperature, mix 1 mmol of lead nitrate, 1 mmol of zinc nitrate and 2 mmol of H 2 L was dissolved in 3 ml of NMP, stirred at room temperature for 15 minutes, and filtered;

[0030] Step 2, add 5 ml of distilled water to the filtrate in step 1, stir at room temperature for 5 minutes, and mix the solution evenly to obtain a mixture;

[0031] Step 3, transfer the mixture to a small glass bottle of 10 ml, put it in a constant temperature oven at 95 degrees Celsius and keep it warm for three days, then cool it down to room temperature naturally to obtain a colorless block crystal with the structural formula: [Pb 2 Zn(C 9 h 3 N 4 o 4 ) 2 (H 2 O) 2 ]·0.5NMP·H 2 O crystal material.

[0032] The d-p heteronuclear bimetallic organic framework material prepared in...

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Abstract

The invention provides a d-p heteronuclear bimetallic organic framework material capable of white light emission and a preparation method thereof; the molecular formula of the d-p heteronuclear bimetallic organic framework material is: {[Pb 2 Zn(L) 2 (H 2 O) 2 ]·NMP·H 2 O} n ; The present invention also relates to the preparation method of material. The invention is synthesized under hydrothermal conditions, has simple process, low cost and good repeatability. The Pb-Zn-based HMOF material prepared by the present invention can realize white light emission under the irradiation of an ultraviolet lamp, and has good chemical stability and thermal stability, and is an excellent new high-efficiency luminescent crystal material. The Pb-Zn-based HMOF material prepared by the present invention can realize white light emission under the irradiation of an ultraviolet lamp, and can be applied to light-emitting diodes, fluorescent immunoassays, optical fiber communications, photochemical sensing, and the like.

Description

technical field [0001] The invention relates to the technical field of preparation of heteronuclear bimetallic organic framework compounds, and specifically discloses a d-p heteronuclear bimetallic organic framework material capable of realizing white light emission and a preparation method thereof. Background technique [0002] Metal-organic frameworks (MOFs) materials are a new class of zeolite materials with a repeating network structure formed by self-assembly of ligands and metal ions. Compared with traditional inorganic porous materials, MOFs materials have larger porosity and specific surface area, especially adjustable pore size and variable functional groups, which have been successfully applied in gas storage and separation, catalysis, photoinduced Luminescence and molecular sieves and other fields. The proposal of a bimetallic synthesis strategy undoubtedly provides a new opportunity for the construction of different MOFs materials with novel structures and excel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00
CPCC08G83/008
Inventor 杨国平刘姣吴丹张文彦王尧宇
Owner NORTHWEST UNIV
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