Sponge coated by metal organic skeleton material coated graphene 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: 2015-12-09
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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  • Sponge coated by metal organic skeleton material coated graphene and preparation method thereof
  • Sponge coated by metal organic skeleton material coated graphene and preparation method thereof
  • Sponge coated by metal organic skeleton material coated graphene 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 sponge coated by metal organic skeleton material coated graphene and a preparation method thereof. The preparation method is characterized by comprising the following steps: soaking sponge in an oxidized graphene solution, carrying out centrifugation, drying, then soaking sponge in a synthesis mother liquid of a metal organic skeleton material, allowing sponge to grow in the mother liquid for a while, then taking out the sponge, and drying to obtain the sponge coated by metal organic skeleton material coated graphene. Through the acting force between a metal organic skeleton material and oxidized graphene, the material can massively grow and be wrapped in graphene coated sponge, and due to the hydrophobic and oleophylic properties of the metal organic skeleton material, the obtained sponge can be used to separate oil and water and simulate crude oil recovery on the sea.

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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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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