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Honeycomb metal-organic framework nanosheet and preparation method thereof

A technology of metal-organic frameworks and nanosheets, applied in the field of materials, can solve the problems of low activity of active sites, few active sites, and limited ability to capture molecules, and achieve good controllability and repeatability, many surface sites, The effect of improving the ability to capture molecules

Active Publication Date: 2018-08-14
FUZHOU UNIVERSITY
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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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  • Honeycomb metal-organic framework nanosheet and preparation method thereof
  • Honeycomb metal-organic framework nanosheet and preparation method thereof
  • Honeycomb metal-organic framework nanosheet and preparation method thereof

Examples

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Embodiment 1

[0022] First, add 84 μL of ethanolamine to 1L of 0.004mol / L copper nitrate trihydrate solution, heat treatment at 60°C for 0.5h in an oven, and then use a 0.2μm organic filter membrane for suction filtration to generate 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 The reaction was carried out in DMF solution of O for 6 h, then the filter membrane was taken out and placed in an oven at 120 °C for vacuum drying for 6 h to obtain honeycomb-like metal-organic framework nanosheets.

Embodiment 2

[0024] First, add 84 μL of ethanolamine to 1L of 0.004mol / L copper nitrate trihydrate solution, heat treatment at 60°C for 0.5h in an oven, and then use a 0.2μm organic filter membrane for suction filtration to generate 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 The reaction was carried out in DMF solution of O for 6 h, then the filter membrane was taken out and placed in an oven at 120 °C for vacuum drying for 6 h to obtain honeycomb-like metal-organic framework nanosheets.

Embodiment 3

[0026] First, add 84 μL of ethanolamine to 1L of 0.004mol / L copper nitrate trihydrate solution, heat treatment at 60°C for 0.5h in an oven, and then use a 0.2μm organic filter membrane for suction filtration to generate 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 The reaction was carried out in DMF solution of O for 6 h, then the filter membrane was taken out and placed in an oven at 120 °C for vacuum drying for 6 h to obtain honeycomb-like 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 technical field of materials, 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 periodic multi-dimensional network structures formed by the self-assembly of metal ions or metal cluster units and organic ligands through coordination, with unique pore structure and properties. In recent years, MOFs materials have attracted much attention at home and abroad due to their controllable morphology, diverse structures, high degree of order, designability, tailorability, high thermal stability, and large specific surface area and porosity. It has attracted widespread attention from scientists and researchers, and has shown attractive prospects in the fields of chemical catalysis, sustained drug release, hydrogen energy storage, and biomedicine. More and more...

Claims

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Application Information

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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 UNIVERSITY
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