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Metal organic framework material wraps graphene wrap sponge and preparation method thereof

A technology for metal-organic materials and sponge products, applied in the field of nanomaterials, can solve the problems of uninvented hydrophobic and lipophilic adsorbents, unsustainable recycling, long time consumption, etc., and achieves the effects of fast preparation, large oil absorption and strong hydrophobicity

Active Publication Date: 2018-01-30
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is relatively cumbersome, takes a long time, and has the inherent disadvantage of unsustainable recycling
[0003] The prior art discloses a variety of methods for preparing hydrophobic and lipophilic adsorbents, such as polydimethylsilane-wrapped graphene-wrapped sponge adsorbents, but hydrophobic and lipophilic adsorbents made of metal-organic framework materials have not yet been invented

Method used

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  • Metal organic framework material wraps graphene wrap sponge and preparation method thereof
  • Metal organic framework material wraps graphene wrap sponge and preparation method thereof
  • Metal organic framework material wraps graphene wrap sponge and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The preparation method of the metal-organic framework material-wrapped graphene-wrapped sponge in this embodiment is carried out as follows:

[0053] a. After washing and drying the sponge, soak it in the graphene oxide solution and absorb it to saturation.

[0054] b, the soaked sponge is centrifuged and dried to obtain graphene oxide / sponge;

[0055] c. Put the graphene oxide / sponge into the mother liquor of the metal-organic framework material to grow,

[0056] d. Take out the grown sponge and dry it to obtain metal organic framework material / graphene / sponge.

[0057] The metal-organic framework materials obtained in this example were soaked in different solutions, and powder X-ray diffraction was performed after a period of time. For the results, see figure 1 ,Depend on figure 1 It can be seen that the metal-organic framework material obtained in this example is stable in an aqueous solution, and is equally stable in an acidic solution with a pH of 2 and an alkal...

Embodiment 2

[0065] The preparation method of the metal-organic framework material-wrapped graphene-wrapped sponge in this embodiment is carried out as follows:

[0066] a. After washing and drying the sponge (2cm*2cm*2cm), soak it in the graphene oxide solution and absorb it to saturation.

[0067] b, the soaked sponge is centrifuged and dried to obtain graphene oxide / sponge;

[0068] c. Put the graphene oxide / sponge into the mother liquor of the metal-organic framework material to grow,

[0069] d. Take out the grown sponge and dry it to obtain metal organic framework material / graphene / sponge.

[0070] Put the graphene-wrapped sponge obtained in this example and the metal-organic framework material-wrapped graphene-wrapped sponge into the neck of the separatory funnel respectively, and then pour oil with a density greater than water from the top of the funnel. For the results, see Figure 7 . Depend on Figure 7 It can be seen that the ordinary graphene oxide-wrapped sponge is hydrop...

Embodiment 3

[0073] The preparation method of the metal-organic framework material-wrapped graphene-wrapped sponge in this embodiment is carried out as follows:

[0074] a. After washing and drying the sponge (2cm*2cm*2cm), soak it in the graphene oxide solution and absorb it to saturation.

[0075] b, the soaked sponge is centrifuged and dried to obtain graphene oxide / sponge;

[0076] c. Put the graphene oxide / sponge into the mother liquor of the metal-organic framework material to grow,

[0077] d. Take out the grown sponge and dry it to obtain metal organic framework material / graphene / sponge.

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Abstract

The invention discloses a method for preparing a metal-organic framework material-wrapped graphene-wrapped sponge, which is characterized in that: the sponge is soaked in a graphene oxide solution, and after centrifugal drying, it is put into a synthetic mother liquor of a metal-organic framework material to grow. After a period of time, it is taken out and dried to obtain a metal-organic framework material-wrapped graphene-wrapped sponge. The present invention utilizes the force between the metal-organic framework material and graphene oxide, so that the material grows and wraps in a large amount in the graphene-wrapped sponge, and utilizes the hydrophobic and lipophilic properties of the metal-organic framework material, so that the obtained sponge can be used in Water and oil separation, simulating offshore crude oil recovery.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a preparation method of a metal-organic framework material-wrapped graphene-wrapped sponge. Background technique [0002] How to solve the organic solvent pollution in the water environment, especially the crude oil pollution in the ocean, has received more and more attention. High-efficiency, recyclable hydrophobic and lipophilic materials have great application prospects in the fields of materials chemistry and environmental chemistry. The porous hydrophobic and lipophilic adsorbent has a good ability to selectively adsorb oil in the water phase, and the adsorbed oil can be recovered by distillation or squeezing, so as to achieve the purpose of water and oil separation and reuse. However, this method is relatively cumbersome, takes a long time, and has the inherent disadvantage of unsustainable recycling. [0003] The prior art discloses a variety of m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28
Inventor 江海龙俞书宏蒋卓睿
Owner UNIV OF SCI & TECH OF CHINA
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