Super-amphiphilic graphene oxide as well as preparation method and application thereof

Abstract

The invention discloses super-amphiphilic graphene oxide as well as a preparation method and application thereof. The preparation method of the super-amphiphilic graphene oxide comprises the followingsteps: mixing a graphene oxide dispersion with a solution with a hydrophobic modifier, and performing a reaction I under the action of a template agent, so as to obtain an amphiphilic graphene oxidedispersion; mixing the amphiphilic graphene oxide dispersion with a solution with a hydrophilic modifier so as to obtain a mixed liquid, and performing a reaction II, so as to obtain the super-amphiphilic graphene oxide. By adopting the preparation method disclosed by the invention, hydrophobic modified graphene oxide is combined with hydrophilic modified graphene oxide, then the super-amphiphilicgraphene oxide with excellent hydrophilcity and lipophilicity is prepared, the solvent dispersibility of the graphene oxide can be improved, and further application of the graphene oxide can be promoted.

Description

technical field [0001] The present application relates to a super amphiphilic graphene oxide, more specifically, to a super amphiphilic graphene oxide and its preparation method and application, belonging to the field of chemical materials. Background technique [0002] Graphene is a sp 2 The two-dimensional carbon nanomaterials formed by hybridized carbon atoms in a hexagonal arrangement in a honeycomb lattice are considered to be the hardest materials in the world, with excellent electrical properties, mechanical properties, thermal stability, thermal conductivity, etc. . Graphene oxide is a graphene derivative material with a large number of oxygen-containing groups on the surface. The oxygen-containing groups on the surface of graphene oxide materials allow the material to be modified in a variety of ways, enabling controllable design of functions. Studies have shown that the surface of graphene oxide is hydrophilic, which makes it easy to agglomerate in some hydrophob...

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Problems solved by technology

[0008] It can be known from the above prior art that super amphiphilic graphene oxide that is both hydrophilic and lipophilic is seldom reported, and in the existing preparation methods of reported amphiphilic graphene oxide, most of them only carry out the modification of hydrophobic segment (lipophilicity) , the hydrophilic end is not treated, and only relying on the oxygen-containing functional groups of graphene oxide itself to maintain hydrophilicity is far from reaching superhydrophilicity; and some methods are expensive or the process is toxic.

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