A preparation method of metal-organic complex materials for malachite green enrichment and sensing

A metal-organic and malachite green technology, applied in chemical instruments and methods, analytical materials, material excitation analysis, etc., can solve problems such as patent publications that have not been found, achieve good thermal and chemical stability, and simple synthesis process , the effect of strong adsorption performance

Active Publication Date: 2022-04-01
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Through the search, no patent publications related to the patent application of the present invention have been found

Method used

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  • A preparation method of metal-organic complex materials for malachite green enrichment and sensing
  • A preparation method of metal-organic complex materials for malachite green enrichment and sensing
  • A preparation method of metal-organic complex materials for malachite green enrichment and sensing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for preparing a metal-organic complex material for malachite green enrichment and sensing, the steps are as follows:

[0031] ⑴ Add copper nitrate, nitrogen-containing dicarboxylic acid ligand and 1,3,5-benzenetricarboxylic acid to the N,N-dimethylformamide solution, ultrasonically dissolve the reactants for 30 minutes, and then put them into a polytetrafluoroethylene container. In a stainless steel reactor, react at 80°C for 12h.

[0032] Wherein, the N,N-dimethylformamide:copper nitrate ratio mL:mol is 10-20:2.2, copper nitrate, nitrogen-containing dicarboxylic acid ligand and 1,3,5-trimellitic acid ligand The molar ratio of the body is 2.2:1:1;

[0033] (2) The material obtained by the reaction in step (1) is washed twice with N,N-dimethylformamide, washed three times with methanol, and dried at 100° C. overnight to obtain the metal-organic complex material.

[0034] The nitrogen-containing dicarboxylic acid ligands in the step (1) are 2,6-naphthalene dica...

Embodiment 2

[0036] A method for preparing a metal-organic complex material for malachite green enrichment and sensing, the steps are as follows:

[0037] ⑴Add cadmium nitrate, nitrogen-containing dicarboxylic acid ligand and 1,3,5-tris(4-carboxyphenyl)benzene to the N,N-dimethylformamide solution, and ultrasonically dissolve the reactants for 30 minutes before loading Put it into a polytetrafluoroethylene stainless steel reactor and react at 120°C for 36h.

[0038] Wherein, the N,N-dimethylformamide: cadmium nitrate ratio mL:mol is 10-20:3, cadmium nitrate, nitrogen-containing dicarboxylic acid ligand and 1,3,5-tri(4-carboxy The molar ratio of phenyl)benzene is 3:1:1;

[0039] (2) Wash the material obtained in step (1) with N,N-dimethylformamide for 3 times, methanol for 3 times, and dry at 80° C. overnight to obtain the metal-organic complex material.

[0040] The nitrogen-containing dicarboxylic acid ligands in the step (1) are 2,6-naphthalene dicarboxylic acid, azobenzene-3,3-dicarbo...

Embodiment 3

[0042] A method for preparing a metal-organic complex material for malachite green enrichment and sensing, the steps are as follows:

[0043] ⑴ Add cadmium nitrate, 2,6-naphthalene dicarboxylic acid and tricarboxylic acid ligands to the N,N-dimethylformamide solution, ultrasonicate for 30 minutes to completely dissolve the reactants, and then put them into a polytetrafluoroethylene stainless steel reactor , reacted at 130°C for 12h.

[0044] Wherein, the ratio of N,N-dimethylformamide:cadmium nitrate mL:mol is 10-20:4, and the molar ratio of cadmium nitrate, 2,6-naphthalene dicarboxylic acid and tricarboxylic acid ligand is 4 :1.5:1;

[0045] (2) Wash the material obtained in step (1) with N,N-dimethylformamide for 3 times, methanol for 3 times, and dry at 80° C. overnight to obtain the metal-organic complex material.

[0046] In the step (1), the tricarboxylic acid ligand is 1,3,5-tris(4-carboxyphenyl)benzene, 1,3,5-tris(4'-carboxy[1,1'-biphenyl]-4 -yl) benzene, 1,3,5-trim...

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Abstract

The invention relates to a method for preparing a metal-organic complex material for malachite green enrichment and sensing, the steps are as follows: adding nitrate and nitrogen-containing dicarboxylic acid ligands to N,N-dimethylformamide and tricarboxylic acid ligand, sonicate for 10-50 minutes to completely dissolve the reactant, pour it into a polytetrafluoroethylene stainless steel reactor, and react at 80-130°C for 12-36 hours; wash and dry the obtained material to obtain Metal organic complex materials. The metal-organic complex prepared by the method is a mesoporous material with high thermal stability, good water phase stability, mesoporous characteristics and special groups on the surface, high adsorption capacity and more active sites. Stone green has strong adsorption properties and a high ability to enrich malachite green. After half a year in a dry environment at room temperature, malachite green can still be enriched, which greatly saves the production cost of use. Broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of preparation of functionalized materials, in particular to a method for preparing a metal-organic complex material used for enrichment and sensing of malachite green. Background technique [0002] Metal-organic complexes are one-dimensional, two-dimensional or three-dimensional coordination polymers composed of metal ions or clusters connected with organic ligands. In the past 20 years, metal-organic complex materials have attracted a large number of scientific researchers to continuously develop and innovate in their synthesis because of their various exquisite and interesting structures. At the same time, as a kind of porous material, the various structures of metal-organic complex materials make it widely used. Metal-organic complex materials cleverly combine inorganic and organic chemistry to produce properties that traditional porous materials do not have. [0003] Malachite Green (Malachite Green) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30G01N21/33G01N21/64C02F1/28C02F101/38
CPCB01J20/223C02F1/285G01N21/33G01N21/6402C02F2101/38
Inventor 邓启良吴晨李燕丽王硕
Owner TIANJIN UNIV OF SCI & TECH
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