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A kind of ultra-light ultra-amphiphilic three-dimensional graphene foam material and its preparation method and application

A graphene foam, super-amphiphilic technology, applied in graphene, chemical instruments and methods, other chemical processes, etc., can solve the problems of single infiltration function, poor mechanical strength, etc. The effect of good wetting and adsorption properties

Active Publication Date: 2019-05-24
SHANGHAI MARITIME UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an ultra-light and ultra-amphiphilic three-dimensional graphene foam material to make up for the shortcomings of existing lightweight three-dimensional graphene materials with poor mechanical strength and single infiltration function

Method used

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  • A kind of ultra-light ultra-amphiphilic three-dimensional graphene foam material and its preparation method and application
  • A kind of ultra-light ultra-amphiphilic three-dimensional graphene foam material and its preparation method and application
  • A kind of ultra-light ultra-amphiphilic three-dimensional graphene foam material and its preparation method and application

Examples

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Embodiment 1～5

[0029] Prepare graphene oxide solution, weigh 1g of graphene oxide solids and add ultrapure water to prepare 500ml graphene oxide aqueous solution with a mass concentration of 2mg / ml, and use ultrasonic dispersion for 1 hour at room temperature.

[0030] Weigh the phosphate ethanolamine powder according to the value in Table 1, put it into 15mL, 2mg / ml graphene oxide aqueous solution and ultrasonically disperse for 1h, then add the mixed solution to a 25mL hydrothermal reactor, and install the hydrothermal reactor Put it into a stainless steel jacket and screw it tightly into an oven, raise the temperature to 180°C and keep it for 12 hours. Three samples were prepared for each example.

[0031] The above reaction product was naturally cooled to room temperature and washed with ethanol and water, and the product was freeze-dried for 24 hours. In Examples 1 to 5, the samples of each example were annealed at 800°C, 900°C, and 1000°C for 1 hour respectively under the protection of arg...

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Abstract

The invention discloses an ultralight ultra-amphiphilic type three-dimensional graphene foam material, and a preparation method and application thereof. The preparation method comprises the steps of adopting graphene oxide and a green and environmental-friendly biochemical reagent phosphorylethanolamine as raw materials, firstly utilizing hydrothermal self-assembly for bonding phosphorylethanolamine molecules between graphene oxide layers, and then carrying out high-temperature annealing treatment on a graphene / phosphorylethanolamine compound to obtain the porous three-dimensional graphene foam material with a novel structure characteristic. The three-dimensional graphene foam material obtained through the invention has the characteristics of porosity and light weight, and has a higher infiltration capability on water / oil. Therefore, the graphene foam material provided by the invention can be used as an adsorbent or a catalyst so as to be applied in the fields such as marine oil leakage and water organic pollutant treatment, and meanwhile, the three-dimensional graphene foam material is stable in structure framework, and can be recycled repeatedly. The ultralight ultra-amphiphilic type three-dimensional graphene foam material provided by the invention is simple and practicable in preparation process, wide in raw material source, and favorable in preparation method repeatability, and can adapt to the requirement of industrial production.

Description

Technical field [0001] The invention relates to the field of new materials, in particular to an ultra-light and super amphiphilic three-dimensional graphene foam material and a preparation method and application thereof. Background technique [0002] Graphene is a planar two-dimensional layered material with a honeycomb lattice structure. Because of its excellent electrical, optical, thermodynamic, mechanical and other properties, it has received wide attention from researchers. Due to the strong interaction and van der Waals force between graphene nanosheets, graphene sheets usually undergo irreversible agglomeration and stacking, making the actual specific surface area much lower than the theoretical value, and the effective area is greatly reduced. Masking a large number of catalytic active sites is also not conducive to the synthesis of graphene composite materials, resulting in serious impact on its application performance. Integrating two-dimensional graphene sheets into ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/184B01J20/20B01J20/28B01J20/30C02F1/28
CPCB01J20/20B01J20/28045C01B2204/20C01P2004/03C01P2006/10C02F1/283
Inventor 宋昕鸿
Owner SHANGHAI MARITIME UNIVERSITY
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