Hydrophobic double MOF-based porous carbon material preparation

A hydrophobic, MOF-5 technology, applied in the preparation/purification of carbon, carbon compounds, inorganic chemistry, etc., can solve problems such as complex steps and achieve good hydrophobicity

Active Publication Date: 2018-11-13
QUANZHOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the steps of this method are complicated, and it is necessary to initially carbonize M

Method used

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  • Hydrophobic double MOF-based porous carbon material preparation
  • Hydrophobic double MOF-based porous carbon material preparation
  • Hydrophobic double MOF-based porous carbon material preparation

Examples

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Embodiment 1

[0026] In order to facilitate comparison and description of the effect of the synthetic method of the hydrophobic double MOF-based porous carbon material of the present invention, Example 1 provides a MOF-5 material prepared according to a conventional method, and the specific preparation method is as follows:

[0027] 9.88g Zn(OAC) 2 2H 2 O and 2.49g terephthalic acid (H 2 BDC) was dissolved in 350 mL of dimethylformamide (DMF), stirred at room temperature for 5 h to obtain the reaction product; the reaction product was centrifuged, washed with ethanol, and dried at 150° C. for 8 h in vacuum to obtain the MOF-5 material.

Embodiment 2

[0029] A method for preparing a hydrophobic double MOF-based porous carbon material, comprising the steps of:

[0030] Mix 0.6g of MOF-5 material with 0.1g of MIL-100(Fe) and put it into a tube furnace. Under the protection of nitrogen, the temperature is raised to 900°C at 5°C / min and maintained for 6h to obtain a hydrophobic double MOF-based porous carbon. Material.

Embodiment 3

[0032] A method for preparing a hydrophobic double MOF-based porous carbon material, comprising the steps of:

[0033] Mix 0.56g of MOF-5 material and 0.14g of MIL-100(Fe) evenly, put it into a tube furnace, and raise the temperature to 900°C at 10°C / min under the protection of nitrogen for 5h to obtain hydrophobic double MOF-based porous carbon Material.

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Abstract

The invention discloses hydrophobic double MOF-based porous carbon material preparation. A method comprises the following steps that an MOF-5 material and another iron-based MOF material are subjectedto high-temperature carbonization after being evenly mixed according to a certain ratio, so that a hydrophobic porous carbon material is obtained. The method is simple in preparation process, the product has a larger specific surface area and abundant pore channels, and meanwhile, through an iron catalysis graphite method, the graphitization degree of the porous carbon material is improved, so that the hydrophobicity of the porous carbon material is improved, and the porous carbon material has better application prospects in the aspect of adsorption separation.

Description

technical field [0001] The invention belongs to the field of preparation of porous carbon materials, and in particular relates to the preparation of a hydrophobic double MOF-based porous carbon material. Background technique [0002] Metal Organic Frameworks (MOFs for short) are zeolite-like materials with a periodic network structure formed by self-assembly of organic ligands and metal ions through coordination and covalent bonds. Compared with traditional adsorption materials, this new material has high porosity and huge specific surface area (up to 7000m 2 / g), controllable pore structure design, and surface modification, it has great application prospects and development potential in gas storage, adsorption separation, and catalysis. However, since MOFs are crystals with a three-dimensional network structure formed by hybridization of coordination bonds with inorganic metal centers, the stability of MOFs materials is relatively poor compared with other porous materials....

Claims

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Application Information

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IPC IPC(8): C01B32/05C01B32/205
CPCC01B32/05C01B32/205
Inventor 孙雪娇闫志敏马宇航葛星吴启辉肖春妹赵小静潘晓阳
Owner QUANZHOU NORMAL UNIV
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