Zinc metal organic framework material, and preparation method and application thereof

An organic framework and zinc metal technology, applied in the direction of alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve the problem of difficult specific and selective adsorption of activated carbon, and achieve good application prospects

Active Publication Date: 2017-08-04
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is difficult for activated carbon to achieve specific and selective adsorption of a certain substance.

Method used

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  • Zinc metal organic framework material, and preparation method and application thereof
  • Zinc metal organic framework material, and preparation method and application thereof
  • Zinc metal organic framework material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation method of the zinc metal organic framework material of embodiment 1 comprises the following steps:

[0022] (1) Weigh 59.4mg of zinc nitrate hexahydrate, 18.7mg of azobenzene-3,3',5,5'-tetracarboxylic acid and 15mg of 1,4-dibenzimidazole-benzene, add Into the polytetrafluoroethylene lined reactor;

[0023] (2) Add 3mL of N,N-dimethylacetamide into the reaction kettle, stir for 30min to mix the mixture evenly, then adjust the pH value of the mixture to 3.5 with tetrafluoroboric acid, then put the reaction kettle into the stainless steel The outer tank is sealed, and the stainless steel outer tank is heated from room temperature to 120 °C at a rate of 0.3 °C / min, and reacted at 120 °C for 4 days, and finally cooled to room temperature at a rate of 0.1 °C / min to obtain yellow flaky crystals. After washing with N,N-dimethylacetamide and drying, the zinc metal organic framework material is prepared, which is recorded as ZnMOF crystal, and its molecular formu...

Embodiment 2

[0024] The preparation method of the zinc metal organic framework material of embodiment 2 comprises the following steps:

[0025] (1) Weigh 59.4mg of zinc nitrate hexahydrate, 18.7mg of azobenzene-3,3',5,5'-tetracarboxylic acid and 15mg of 1,4-dibenzimidazole-benzene, add Into the polytetrafluoroethylene lined reactor;

[0026] (2) Add 3mL of N,N-dimethylacetamide into the reaction kettle, stir for 60min, mix the mixture evenly, adjust the pH value of the mixture to 4 with tetrafluoroboric acid, then put the reaction kettle into stainless steel The outer tank is sealed, and the stainless steel outer tank is heated from room temperature to 120 °C at a rate of 0.4 °C / min, and reacted at 120 °C for 4 days, and finally cooled to room temperature at a rate of 0.3 °C / min to obtain yellow flaky crystals. After washing with N,N-dimethylacetamide and drying, the zinc metal organic framework material is prepared, which is recorded as ZnMOF crystal, and its molecular formula is C 28 h...

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Abstract

The invention discloses a zinc metal organic framework material. A molecular formula of a porous material is C28H17N505Zn, a crystal system is homocline, a space group is P21 / c, and cell parameters are shown in the description, wherein alpha is equal to 90 degrees, beta is equal to 104.1960(10) degrees, gamma is equal to 90 degrees, and the number of molecules in a unit cell is two; and a chemical general formula of the porous material is Zn(phenDIB)L0.5, wherein L is azoxybenzene-3,3',5,5'-tetracarboxylic acid, and phenDIB is 1,4-bisbenzimidazole-benzene; and the material is a porous material with high stability, has apparent absorption effect for cationic dye such as methylene blue, rhodamine B, and can realize the selective absorption separation for the cationic dye from different types of mixed dye containing the cationic dye, the absorbed separated dye can also be desorbed and recycled and can be used as an environment-friendly absorption material, the zinc metal organic framework material can be prepared by adopting a simple solvent thermal method, and the application prospect is good.

Description

technical field [0001] The invention belongs to the technical field of inorganic synthesis and material preparation, and specifically relates to a zinc metal organic framework material and its preparation method and application. Background technique [0002] According to statistics, millions of tons of dyes are used in daily life and various industrial fields every year, such as: paper industry, leather factory, plastic factory, food processing, printing industry, cosmetics and pharmaceutical industries. The subsequent discharge of a large amount of dye wastewater has become an urgent problem that seriously threatens the environment, human health and biological survival. However, most organic dyes are highly toxic and difficult to degrade under light. Traditional methods for treating dyes in wastewater include physical, chemical and biological methods. From the perspective of economic cost, environmental protection and resource reuse, the physical adsorption method is cons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00B01J20/28B01J20/30B01J20/22C02F1/28C02F101/34C02F101/38C02F101/36
CPCB01J20/226B01J20/28054C02F1/285C02F2101/308C02F2101/34C02F2101/36C02F2101/38C08G83/008
Inventor 伊斐艳吴梦柯王士成潘鲁青
Owner NINGBO UNIV
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