Preparation method of graphene sponge for efficient oil-water separation

Abstract

A preparation method of graphene sponge for efficient oil-water separation comprises the following steps that (1) clean polyurethane sponge is taken; (2) graphene oxide is prepared; (3) graphene oxidedispersion is prepared; (4) 2 mg / ml of graphene oxide ethanol suspension is prepared; (5) hydrazine hydrate and the clean polyurethane sponge obtained in the step 1 are added into the graphene oxideethanol suspension obtained in the step 4, the mixture is put in a chemical microwave reactor, microwave heating reaction is executed for 30-60 minutes, then the mixture is put in an ultrasonic cleaner, ultrasonic dispersion is executed for 30-50 minutes to increase the distribution uniformity of graphene oxide, the sponge is taken out, washed with deionized water, and is dried in an oven at 80-100 DEG C; (6) a polydimethylsiloxane / n-hexane solution is prepared; (7) the graphene sponge for efficient oil-water separation is prepared. The graphene sponge has excellent adsorption properties as well as good hydrophobicity.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a preparation method of a graphene sponge for efficient oil-water separation. Background technique [0002] With the rapid development of modern industry, the increasing scarcity of land resources and the rapid growth of human demand for energy, shallow sea oil and gas resources have been continuously developed. However, with the development of submarine oil and crude oil, their products are also continuously transported at sea, which inevitably produces many marine oil pollution incidents, such as blowout accidents during development and leakage accidents from transport tankers. Oil spills on the ocean not only brought us huge economic losses, but more importantly, caused significant pollution to the marine ecological environment and surrounding coasts. First of all, oil will seriously endanger the survival of aquatic organisms. After marine mammals ingest oil spills, their vis...

AI Technical Summary

Problems solved by technology

The physical mechanical recovery method not only solves the problem of oil slicks on the ocean, but also recycles energy without wasting energy. However, the oil boom cannot ensure rapid and complete control of the oil diffusion trend, so it still has certain limitations.

The combustion method seems to be the simplest method, but the products after combustion will cause secondary pollution to the environment, so all oil spills on the high seas have not used this method so far

Bioremediation is mostly implemented by surfactants, especially biosurfactants that combine the hydrophobicity of surfactants and the degradation function of microorganisms, which can achieve high efficiency, non-toxic, antibacterial, economical, easy to degrade and no secondary Pollution and other advantages, but considering the industrial cost, ecological balance and long time, it is not often used as oil spill pollution treatment