Indium-based MOF micro-nano powder as well as room temperature preparation method and application thereof

A micro-nano, indium-based technology, applied in chemical instruments and methods, other chemical processes, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problems of restricting development and industrial application, restricting application and development, etc., To achieve the effect of simplifying operation, improving adsorption, and increasing specific surface area

Active Publication Date: 2019-06-14
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many kinds of MOFs, only a few classic MOF micro-nano powder materials (such as ZIF, MIL, etc.) have been applied in the field of photocatalysis. This is because most MOFs usually exist in the form of bulk crystals, which limits their applications. And development
It is reported that most MOFs are prepared by hydrothermal or solvothermal methods, which limits their development and industrial application.

Method used

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  • Indium-based MOF micro-nano powder as well as room temperature preparation method and application thereof
  • Indium-based MOF micro-nano powder as well as room temperature preparation method and application thereof
  • Indium-based MOF micro-nano powder as well as room temperature preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] (1) Configuration of solution A: Dissolve 2mmol terephthalic acid in 25mL N,N-dimethylformamide (DMF), stir for 10min, and set aside;

[0075] (2) Configuration of solution B: 2mmol indium nitrate was dissolved in 5mL water and formed a uniform solution;

[0076] (3) Pour solution B into solution A, continue to stir and react at a temperature of 25°C for 24 hours, centrifuge, wash with ethanol twice, and dry to obtain a rod-shaped MIL-68(In) micro-nano material. The electron micrograph of the material is as follows Figure 4a Shown (the magnification of electron micrograph is 10k), its XRD pattern is as follows figure 1 shown. figure 1 Among them, the standard MIL-68 refers to the XRD structure of the known standard MIL-68, which is determined by figure 1 It can be seen that the embodiment of the present invention successfully prepared indium-based MIL-68 with XRD diffraction characteristic peaks of the standard product.

Embodiment 2

[0078] (1) Configuration of solution A: Dissolve 2mmol terephthalic acid in 20mL N,N-dimethylformamide (DMF), stir for 10min, and set aside;

[0079] (2) Configuration of solution B: 2mmol indium nitrate is dissolved in 10mL water and form a uniform solution;

[0080] (3) Pour solution B into solution A, continue to stir and react at a temperature of 25°C for 24 hours, centrifuge, wash with ethanol twice, and dry to obtain a rod-shaped MIL-68(In) micro-nano material. The electron micrograph of the material is as follows Figure 4b Shown (the magnification of the electron micrograph is 10k).

[0081] Depend on Figure 4b and Figure 4a It can be seen that in the method of the present invention, the more water is added, the more inhomogeneous the material morphology will be.

[0082] After repeated studies, the inventors have shown that when preparing an aqueous solution of indium nitrate, the water added should not be too much, too much will make the appearance of the prepar...

Embodiment 3

[0084] (1) Configuration of solution A: Dissolve 2mmol terephthalic acid in 25mL N,N-dimethylformamide (DMF), stir for 10min, add 50mg sodium formate to it, and set aside;

[0085] (2) Configuration of solution B: 2mmol indium nitrate is dissolved in 5mL DMF and form a uniform solution;

[0086] (3) Pour solution B into solution A, continue to stir and react at a temperature of 25°C for 24 hours, centrifuge, wash with ethanol twice, and dry to obtain a rod-shaped MIL-68(In) micro-nano material, its XRD pattern is as follows figure 1 shown. figure 1 Among them, the standard MIL-68 refers to the XRD structure of the known standard MIL-68, which is determined by figure 1 It can be seen that the examples of the present invention have successfully prepared indium-based MIL-68 with XRD diffraction characteristic peaks of the standard product.

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Abstract

The invention relates to a metal organic framework material, in particular to an indium-based MOF micro-nano powder as well as a preparation method and application thereof, the indium-based MOF micro-nano powder is prepared by taking indium nitrate and carboxylic acid as reaction raw materials, and adding water or salt or the water and the salt into the reaction raw materials for reacting at 15-45DEG C especially at room temperature. The room-temperature mild preparation technology of the indium-based MOF micro-nano powder has important significance in simplifying operation, enriching classicMOF types, developing application fields and realizing industrial application.

Description

technical field [0001] The invention relates to a metal-organic framework (MOF) material, in particular to an indium-based MOF material prepared by a common and simple method at room temperature. Background technique [0002] Metal-organic framework (MOF) materials have attracted widespread attention due to their advantages such as tunable channel size and functional channels. Although there are many kinds of MOFs, only a few classic MOF micro-nano powder materials (such as ZIF, MIL, etc.) have been applied in the field of photocatalysis. This is because most MOFs usually exist in the form of bulk crystals, which limits their applications. And development. It is reported that most MOFs are prepared by hydrothermal or solvothermal methods, which limits their development and industrial application. Contents of the invention [0003] The technical problem solved by the present invention is that the existing methods for preparing indium-based MOF are mostly hydrothermal meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30B01J31/22
Inventor 付会芬王崇臣王鹏赵晨楚弘宇宋晓旭李玉璇
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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