A kind of honeycomb metal-organic framework nanosheet and its preparation method

A metal-organic framework and nanosheet technology, applied in the field of materials, can solve the problems of limited ability to capture molecules, low activity of active sites, few active sites, etc., achieve good controllability and repeatability, and improve the ability to capture molecules , the effect of many surface sites

Active Publication Date: 2020-11-27
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Nevertheless, MOFs materials still have defects that cannot be ignored, that is, few active sites, low activity of active sites, limited ability to capture molecules, etc.

Method used

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  • A kind of honeycomb metal-organic framework nanosheet and its preparation method
  • A kind of honeycomb metal-organic framework nanosheet and its preparation method
  • A kind of honeycomb metal-organic framework nanosheet and its preparation method

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Effect test

Embodiment 1

[0022] First add 84 μL of ethanolamine to 1L of 0.004mol / L copper nitrate trihydrate solution, put it in an oven for heat treatment at 60°C for 0.5h, and then use a 0.2μm organic filter membrane for suction filtration to form copper hydroxide crystals on the filter membrane. Then soak the filter membrane with copper hydroxide crystals in 50mL containing 0.4g / L 1,4-terephthalic acid and 10μL H 2 O was reacted in DMF solution for 6 h, and then the filter membrane was taken out and placed in an oven at 120 °C for 6 h in vacuum to obtain honeycomb-shaped metal-organic framework nanosheets.

Embodiment 2

[0024] First add 84 μL of ethanolamine to 1L of 0.004mol / L copper nitrate trihydrate solution, put it in an oven for heat treatment at 60°C for 0.5h, and then use a 0.2μm organic filter membrane for suction filtration to form copper hydroxide crystals on the filter membrane. Then soak the filter membrane with copper hydroxide crystals in 50mL containing 0.4g / L 1,4-terephthalic acid and 20μL H 2 O was reacted in DMF solution for 6 h, and then the filter membrane was taken out and placed in an oven at 120 °C for 6 h in vacuum to obtain honeycomb-shaped metal-organic framework nanosheets.

Embodiment 3

[0026] First add 84 μL of ethanolamine to 1L of 0.004mol / L copper nitrate trihydrate solution, put it in an oven for heat treatment at 60°C for 0.5h, and then use a 0.2μm organic filter membrane for suction filtration to form copper hydroxide crystals on the filter membrane. Then soak the filter membrane with copper hydroxide crystals in 50mL containing 2.0g / L 1,4-terephthalic acid and 10μL H 2 O was reacted in DMF solution for 6 h, and then the filter membrane was taken out and placed in an oven at 120 °C for 6 h in vacuum to obtain honeycomb-shaped metal-organic framework nanosheets.

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Abstract

The invention discloses a honeycomb metal-organic framework nanosheet and a preparation method thereof. The honeycomb metal-organic framework nanosheet is prepared by self-assembling a metal ion Cu<2+> and an organic ligand, namely 1,4-terephthalic acid through a coordinate bond. The honeycomb metal-organic framework nanosheet has the advantages of high specific surface area, more surface active sites, high mechanical stability and the like, has a wide application prospect in fields of chemocatalysis, drug sustained release, hydrogen energy reserving, biomedicine and the like, and is simple insynthetic process and low in cost.

Description

technical field [0001] The invention belongs to the field of material technology, and in particular relates to a honeycomb-shaped metal-organic framework nanosheet and a preparation method thereof. Background technique [0002] Metal-organic frameworks (MOFs) are a class of porous crystalline materials with a periodic multidimensional network structure formed by the self-assembly of metal ions or metal cluster units and organic ligands through coordination, and have unique pore structures and properties. In recent years, MOFs materials have been favored at home and abroad for their features such as controllable morphology, diverse structures, high order, designability, tailorability, high thermal stability, and large specific surface area and porosity. Scientists and researchers have paid extensive attention, and have shown attractive prospects in the fields of chemical catalysis, drug sustained release, hydrogen energy storage, and biomedicine. More and more MOFs materials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00
CPCC08G83/008
Inventor 张兰郭宇恒黄川辉林明霞何雪冯遵梅马文德
Owner FUZHOU UNIV
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