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Super-hydrophobic reduced graphene oxide/sponge composite material and preparation method thereof

A composite material and graphene technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of harsh preparation conditions, poor stability, cumbersome process, etc., and achieve simple preparation process, short reaction time, and low energy consumption Effect

Inactive Publication Date: 2016-07-13
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to solve the deficiencies in the current technology, provide a simple and quick method for preparing superhydrophobic reduced graphene oxide / sponge composite materials, and solve the harsh preparation conditions, cumbersome process and long cycle in the current composite material preparation process , poor stability and other issues

Method used

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  • Super-hydrophobic reduced graphene oxide/sponge composite material and preparation method thereof
  • Super-hydrophobic reduced graphene oxide/sponge composite material and preparation method thereof
  • Super-hydrophobic reduced graphene oxide/sponge composite material and preparation method thereof

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Embodiment 1

[0031] The preparation method of superhydrophobic reduced graphene oxide / melamine sponge composite material comprises the following steps:

[0032] 1) Pretreatment of substrate (sponge)

[0033] Soak a melamine sponge (3cm×2cm×2cm) in absolute ethanol solution, ultrasonically clean it, rinse it with water after taking it out, dry it after taking it out, and set aside;

[0034] 2) Preparation of superhydrophobic reduced graphene oxide / melamine sponge composite

[0035] Weigh 100mg of graphite oxide and dissolve it in 50mL of water, and ultrasonically disperse it evenly for 10min to obtain a graphene oxide solution with a concentration of 2.0mg / mL, then add 2.0mL of ethylenediamine, and then pour the above mixed solution into microwave-ultrasonic reaction In the reactor, the microwave power is 400W, the ultrasonic power is 750W, and the solution is boiled and refluxed. After reacting for 40 minutes, the sponge pretreated in step 1) is put into the mixed solution of the reactor,...

Embodiment 2

[0039] The preparation method of superhydrophobic reduced graphene oxide / polyurethane sponge composite material comprises the following steps:

[0040] 1) Pretreatment of substrate (sponge)

[0041] Soak the polyurethane sponge (3cm×2cm×2cm) in anhydrous ethanol solution, clean it ultrasonically, rinse it with water after taking it out, dry it, and set it aside;

[0042] 2) Preparation of superhydrophobic reduced graphene oxide / polyurethane sponge composites

[0043]Weigh 50 mg of graphite oxide and dissolve it in 50 mL of water, and disperse it evenly by ultrasonication for 5 minutes to obtain a graphene oxide solution with a concentration of 1.0 mg / mL, then add 1.0 mL of ethylenediamine, and then pour the above mixed solution into microwave-ultrasonic reaction In the reactor, the microwave power is 300W, the ultrasonic power is 700W, and the solution is boiled and refluxed. After reacting for 30 minutes, the sponge pretreated in step 1) is put into the mixed solution of the...

Embodiment 3

[0046] The preparation method of superhydrophobic reduced graphene oxide / polyester sponge composite material comprises the following steps:

[0047] 1) Pretreatment of substrate (sponge)

[0048] Soak the polyester sponge (3cm×2cm×1cm) in anhydrous ethanol solution, ultrasonically clean it, rinse it with water after taking it out, dry it, and set it aside;

[0049] 2) Preparation of superhydrophobic reduced graphene oxide / polyester sponge composites

[0050] Weigh 150 mg of graphite oxide and dissolve it in 50 mL of water, and disperse it evenly by ultrasonication for 15 minutes to obtain a graphene oxide solution with a concentration of 3.0 mg / mL, then add 3.5 mL of ethylenediamine, and then pour the above mixed solution into microwave-ultrasonic reaction In the reactor, the microwave power is 400W, the ultrasonic power is 900W, and the solution is boiled and refluxed. After reacting for 50 minutes, the sponge pretreated in step 1) is put into the mixed solution of the react...

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Abstract

The invention discloses a super-hydrophobic reduced graphene oxide / sponge composite material and a preparation method thereof. The method includes: employing a microwave-ultrasonic wave method and using ethylenediamine as the reducing agent to reduce graphene oxide into reduced graphene oxide, and under the action of hole and other sound waves, dispersing and attaching the reduced graphene oxide to a commodity sponge, thus obtaining the super-hydrophobic reduced graphene oxide / sponge composite material. The method provided by the invention has the characteristics of simple operation, low cost, short reaction time, high efficiency and low energy consumption, and is beneficial to industrial mass production. The reduced graphene oxide / sponge composite material prepared by the method provided by the invention has excellent hydrophobic and oil absorption properties, large adsorption capacity and good stability, and can be used as a selective adsorbent for oily wastewater treatment.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional composite materials, in particular to a method for compounding organic nanometer materials and sponges. Background technique [0002] In recent years, oil spills at sea have occurred frequently, from the direct leakage of oil wells in the Bohai Bay of my country, the oil spill in Qingdao to the leakage of a large number of ocean-going tankers, all of which have caused great damage to the marine ecological environment. Oily industrial wastewater and domestic wastewater enter the ocean. The oil leaked on the water surface must be removed in time, otherwise it will bring huge disasters to nature, ecological environment and human beings. At present, the main methods to deal with oil pollution in water bodies are as follows: one is chemical method, which mainly includes combustion method and chemical treatment agent, such as dispersant, oil coagulant and oil collector; the other is bi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/00C08K9/04C08K3/04C08L61/28C08L75/04C08L67/00C08L71/00C08L29/04C09K3/32
CPCC08K3/04C08K9/00C08K9/04C09K3/32C08L61/28C08L75/04C08L67/00C08L71/00C08L29/04
Inventor 杨浩宋爽陈嵘吕中程刚邓黎丹
Owner WUHAN INSTITUTE OF TECHNOLOGY
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