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Preparation method of recyclable lightweight graphene sponge oil absorbing material

A graphene sponge and oil-absorbing material technology is applied in the field of preparing light-weight graphene sponge oil-absorbing materials, which can solve the problems of cycle performance degradation, affecting product service life, and inability to further improve oil absorption, and achieves widening of layer spacing and higher ratio of oil absorption. The effect of surface area improvement, oil absorption rate and oil absorption improvement

Inactive Publication Date: 2019-03-12
胡果青
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main technical problem to be solved by the present invention is: during the use of traditional oil-absorbing materials, the oil-absorbing capacity cannot be further improved, and the recycling performance is obviously attenuated with the increase of the number of cycles, which affects the service life of the product. A recyclable Preparation method using light graphene sponge oil-absorbing material

Method used

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  • Preparation method of recyclable lightweight graphene sponge oil absorbing material

Examples

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example 1

[0022]In parts by weight, take 60 parts of graphene oxide, 10 parts of sodium polystyrene sulfonate, and 150 parts of water in turn, mix them into a beaker, stir and mix them with a glass rod for 5 minutes, and ultrasonically React for 60 minutes, filter to obtain No. 1 filter residue, and wash No. 1 filter residue with deionized water for 5 times, then transfer the washed No. 1 filter residue into a vacuum drying oven, and vacuum dry at a temperature of 100°C and a pressure of 80Pa To constant weight, pretreated graphene oxide is obtained; according to the mass ratio of 80:1, the iron salt solution with a concentration of 0.05mol / L and the pretreated graphene oxide are mixed and poured into a three-necked flask, and the ultrasonic frequency is 50kHz, and the temperature is Under the condition of 45°C, after ultrasonic impregnation for 60 minutes, filter to obtain No. 2 filter residue, and dry the obtained No. 2 filter residue at a temperature of 110°C to constant weight to obt...

example 2

[0024] According to the mass ratio of 80:1, the iron salt solution with a concentration of 0.05 mol / L and graphene oxide were mixed and poured into a three-necked flask, and ultrasonically impregnated for 60 minutes at an ultrasonic frequency of 50 kHz and a temperature of 45 ° C, and then filtered to obtain No. 2 filter residue, and the resulting No. 2 filter residue was dried to constant weight at a temperature of 110°C to obtain a dry impregnating material; the obtained dried impregnating material was transferred to a tube furnace, and the reducing Under the protective state of reducing gas, the temperature was slowly programmed to rise to 1000°C at a rate of 4°C / min. After the reduction reaction was held for 3 hours, it was cooled to room temperature with the furnace, and the material was discharged to obtain the raw material. The hydrochloric acid solution with a fraction of 10% was mixed according to the mass ratio of 1:20, ultrasonically impregnated for 60 minutes at an ...

example 3

[0026] In parts by weight, take 60 parts of graphene oxide, 10 parts of sodium polystyrene sulfonate, and 150 parts of water in turn, mix them into a beaker, stir and mix them with a glass rod for 5 minutes, and ultrasonically React for 60 minutes, filter to obtain No. 1 filter residue, and wash No. 1 filter residue with deionized water for 5 times, then transfer the washed No. 1 filter residue into a vacuum drying oven, and vacuum dry at a temperature of 100°C and a pressure of 80Pa To constant weight, pretreated graphene oxide is obtained; in parts by weight, 40 parts of pretreated graphene oxide, 120 parts of absolute ethanol, 15 parts of (N-amidino) dodecyl acrylamide, 4 parts Polyethylene glycol derivatives, 0.02 parts of catalyst, firstly pour the pretreated graphene oxide and absolute ethanol into the reactor, stir and disperse with a stirrer at a speed of 800r / min for 60min, then turn on the heater of the reactor, at a temperature of At 70°C and a rotating speed of 600...

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Abstract

The invention discloses a preparation method of a recyclable lightweight graphene sponge oil absorbing material, and belongs to the technical field of environmentally friendly materials. The preparation method of the recyclable lightweight graphene sponge oil absorbing material comprises the following steps: after carrying out mixing reaction on graphene oxide, sodium polystyrenesulfonate and water, filtering, washing and drying the mixture to obtain pretreated graphene oxide; after mixing and dipping the pretreated graphene oxide in an iron salt solution, carrying out slow heating reaction under the protection state of reducing gas, and then carrying out acid leaching, washing and drying to obtain an impurity removed reducing material; and then dispersing the impurity removed reducing material in anhydrous ethanol, successively adding (N-guanyl) dodecylacrylamide, polyoxyethylene stearate, dicyclopentadienyl iron and p-dichlorobenzene in a constant-temperature stirring state, keepingstirring reaction, and then carrying out suction filtering, washing and drying to obtain the recyclable lightweight graphene sponge oil absorbing material. The recyclable lightweight graphene sponge oil absorbing material prepared by the technical scheme has the characteristics of excellent oil absorbing property and recycling property, and has wide prospect in development of the environmentally friendly material technical industry.

Description

technical field [0001] The invention discloses a preparation method of a recyclable lightweight graphene sponge oil-absorbing material, which belongs to the technical field of environmental protection materials. Background technique [0002] Graphene sponge is a three-dimensional porous material based on graphene nanosheets. It has the characteristics of ultra-light density, high porosity, and high specific surface area, so it has attracted much attention among graphene materials. Graphene sponge has good application value in energy, environment, electronics and other fields. In addition, the three-dimensional graphene sponge is easier to manipulate than the two-dimensional graphene nanosheets, which is an effective way to apply the excellent properties of graphene to the practical field. Graphene sponge is a three-dimensional network structure adsorption material obtained by cross-linking graphene flakes through intermolecular forces or chemical bond interactions. Graphen...

Claims

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Application Information

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IPC IPC(8): B01J20/20C01B32/184B01J20/30
CPCC01B32/184B01J20/205
Inventor 胡果青许正祥吴加仁
Owner 胡果青
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