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Zinc-based luminescent metal organic framework material as well as preparation method and application thereof

A metal-organic framework, zinc-based technology, applied in luminescent materials, material analysis by optical means, material analysis, etc., can solve problems such as environmental and human health hazards, and achieve easy operation, strong controllability, and structural stability. high effect

Active Publication Date: 2018-11-13
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, hexavalent chromium is a strong carcinogen and will cause serious harm to the environment and human health.

Method used

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  • Zinc-based luminescent metal organic framework material as well as preparation method and application thereof
  • Zinc-based luminescent metal organic framework material as well as preparation method and application thereof
  • Zinc-based luminescent metal organic framework material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The synthesis of embodiment 1 metal organic framework material metal Zn-MOF

[0044] Accurately weigh 0.02mmol of zinc nitrate hexahydrate, 0.02mmol of tris[(4-pyridyl)phenyl]amine and 0.02mmol of 1,4-naphthalene dicarboxylic acid into a glass bottle, then add 2mL of N,N-dicarboxylate Methyl acetamide, 1 mL of ethanol and 1 mL of water were ultrasonically dissolved until the solution became clear, placed in a constant temperature drying oven, reacted at 85°C for 3 days, cooled down to room temperature naturally, and filtered to obtain the metal organic framework material.

Embodiment 2

[0045] Example 2 Synthesis of metal organic framework material metal Zn-MOF

[0046] Accurately weigh 0.01mmol of zinc nitrate hexahydrate, 0.01mmol of tris[(4-pyridyl)phenyl]amine and 0.01mmol of 1,4-naphthalene dicarboxylic acid into a glass bottle, then add 1mL of N,N-dicarboxylate Methylacetamide, 0.5mL ethanol and 0.5mL water were ultrasonically dissolved until the solution became clear, put in a constant temperature drying oven, reacted at 80°C for 2 days, cooled naturally to room temperature, and filtered to obtain the metal organic framework material described in Example 1 above. .

Embodiment 3

[0047] Example 3 Synthesis of metal organic framework material metal Zn-MOF

[0048] Accurately weigh 0.1 mmol of zinc nitrate hexahydrate, 0.1 mmol of tris[(4-pyridyl)phenyl]amine and 0.1 mmol of 1,4-naphthalene dicarboxylic acid into a glass bottle, and then add 6 mL of N,N-dicarboxylate Methylacetamide, 3mL ethanol and 3mL water were ultrasonically dissolved until the solution became clear, placed in a constant temperature drying oven, reacted at 90°C for 4 days, cooled naturally to room temperature, and filtered to obtain the metal organic framework material described in Example 1 above.

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Abstract

The invention discloses a zinc-based luminescent metal organic framework material as well as a preparation method and application thereof. A chemical formula of the zinc-based luminescent metal organic framework material is [Zn(TPPA)2(1,4-ndc)2]n, wherein TPPA represents tris[(4-pyridyl)phenyl]amine; 1,4-ndc represents 1,4-naphthalene dicarboxylic acid; and the preparation method comprises the following steps: mixing zinc nitrate hexahydrate with tris[(4-pyridyl)phenyl]amine and 1,4-naphthalene dicarboxylic acid in proportion; adding a certain amount of N, N-dimethylacetamide, ethanol and water and ; filling into a glass bottle; and reacting in a constant-temperature drying oven at 80-90 DEG C for 2-4 days to obtain colorless block crystals, i.e., the luminescent metal organic framework material. As a sensor for detecting Cr<3+>, the [Zn(TPPA)2(1,4-ndc)2]n has potential application and has excellent selectivity and high sensitivity.

Description

technical field [0001] The invention belongs to the field of luminescent metal organic framework materials, and in particular relates to a zinc-based luminescent metal organic framework material and a preparation method and application thereof. Background technique [0002] Metal–organic frameworks (MOFs), also known as coordination polymers, are a class of crystalline materials with one-dimensional, two-dimensional, and three-dimensional infinite network structures formed by self-assembly of organic ligands and metal centers. . It has both the rigidity of inorganic materials and the flexibility of organic materials. It presents great development potential and attractive development prospects in modern materials research. [0003] Cr 3+ The hazard of chromium is inferior to that of hexavalent chromium. In addition, the content of trivalent chromium is very important to the quality of chrome plating. The traditional hexavalent chromium passivation process has the advantag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C09K11/06G01N21/64
CPCC08G83/008C09K11/06C09K2211/188G01N21/643G01N2021/6432
Inventor 汪芳明李俊峰许秀典周磊周泽宇陈立庄
Owner JIANGSU UNIV OF SCI & TECH
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