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Micro-pore coordination polymer based on diethylbenzotriazole cuprous and its preparation method and application

A technology of coordination polymers and polymers, applied in the field of porous materials, can solve the problems of low stability, high cost and lack of comprehensive properties of coordination polymers, and achieve the effect of simple and convenient synthesis method and efficient separation

Inactive Publication Date: 2008-08-13
SUN YAT SEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Of course, compared with traditional inorganic materials, the disadvantages of coordination polymers such as lower stability and higher cost limit their wide application.
In addition, the existing coordination polymers still lack particularly excellent comprehensive properties, so the real practical microporous coordination polymers are still very rare.

Method used

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  • Micro-pore coordination polymer based on diethylbenzotriazole cuprous and its preparation method and application
  • Micro-pore coordination polymer based on diethylbenzotriazole cuprous and its preparation method and application
  • Micro-pore coordination polymer based on diethylbenzotriazole cuprous and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Material synthesis method under nitrogen atmosphere:

[0024] Methanol 50ml

[0025] 0.2mol / L[Cu(NH 3 ) 2 50 ml of ammonia solution of ]OH

[0026] 0.1mol / L Hetz methanol solution 100ml

[0027] Under a nitrogen atmosphere, 50 ml of methanol and 100 ml of Hetz methanol solution were sequentially added to [Cu(NH 3 ) 2 ]OH ammonia solution, a white precipitate was obtained. After aging at 50°C for 3 to 5 hours, half of the solvent was evaporated under reduced pressure, and the filtered white crystalline powder was vacuum-dried to obtain the product. Its structure is shown in Figure 1, X-ray The diffractogram is shown in Figure 2.

Embodiment 2

[0029] Material synthesis method under hydrothermal (solvothermal) conditions:

[0030] Cu 2 O 0.715 g

[0031] Hetz 1.252 g

[0032] Ammonia (26%) 30ml

[0033] Methanol 30ml

[0034] The mixture of the above materials was sealed in a 100 ml polytetrafluoroethylene reactor and heated to 120°C for 3 days, filtered and vacuum dried to obtain a white to crystalline product.

Embodiment 3

[0036] Separation of water and small molecule organic solvents:

[0037] Put the cuprous diethyltriazolium material after removing the guest in the vapor of water, methanol, ethanol or acetonitrile, the material can start to adsorb a large amount of organic vapor at a very low relative vapor pressure, but when the humidity is very high does not absorb water. Its adsorption isotherm diagram is shown in Fig. 3.

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Abstract

The invention discloses a microporous coordination polymer based on cuprous diethyl triazole, with a formula of [Cu(etz)], wherein Cu is one valent copper ion, etz is anion of 3,5-diethyl -1,2,4-triazole. The polymer is in structure of three-dimentional coordination network of NbO type. The inventive microporous coordination polymer can be used to recycle organic solvent in water, to effectively separate benzene and cyclohexane, to detect toxic organic steam such as small molecular alcohols, acetonitrile and benzene. The inventive microporous coordination polymer is easy to synthesize, suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of porous materials, in particular to a cuprous triazole-based microporous coordination polymer material and its preparation technology and application. Background technique [0002] Microporous coordination polymers are a new type of porous materials, which have the advantages of low density, large specific surface area, strong chemical modifiability, and structural flexibility, and can be widely used in gas storage, separation, heterogeneous catalysis, molecular detection, etc. . [0003] This new type of porous material can provide some special functions that traditional porous materials such as molecular sieves and activated carbon do not have. For example, because water molecules have a smaller diameter than organic molecules, conventional molecular sieve materials based on pore size selection generally only selectively adsorb water but not organic molecules. On the other hand, although porous materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/06C08J9/00B01J20/26G01N30/50C07C7/00C07C15/04
Inventor 张杰鹏洪惠玲陈小明
Owner SUN YAT SEN UNIV
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