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Oil-water separating membrane material as well as preparation method and application thereof

A technology of oil-water separation membrane and oil-water separation device, which is applied in the field of nanomaterials, can solve the problems of cumbersome preparation process, short service life, and low separation efficiency, and achieve good separation effect, good mechanical properties, and strong corrosion resistance.

Active Publication Date: 2022-01-28
深圳中拓天达环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide an oil-water separation membrane material and its preparation method and application, aiming to solve the problems of low separation efficiency, short service life, cumbersome preparation process and poor environmental protection of oil-water separation membrane materials in the prior art to a certain extent

Method used

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  • Oil-water separating membrane material as well as preparation method and application thereof
  • Oil-water separating membrane material as well as preparation method and application thereof
  • Oil-water separating membrane material as well as preparation method and application thereof

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preparation example Construction

[0053] In a second aspect, the present application provides a method for preparing an oil-water separation membrane material, comprising the following steps:

[0054] S1: Preparation of CuO nanowires;

[0055] S2: Put the CuO nanowires in S1 into the pyrrole monomer solution, carry out the polymerization reaction after stirring, cool, wash and dry after the reaction, and obtain CuO(Cu 2 O) @ppy material;

[0056] S3: Add CuO(Cu 2 O) The @ppy material is soaked in a stearyl chloride solution to obtain an oil-water separation membrane material.

[0057] It should be noted that the solvent of the pyrrole monomer solution is preferably a reducing solvent, including but not limited to absolute ethanol. Under solvothermal conditions, CuO nanowires have good oxidation properties (the reaction converts to Cu 2 O), ethanol has good reducibility (the reaction is transformed into acetaldehyde), and the two generate free radicals through redox reactions, which jointly trigger the in-si...

Embodiment 1

[0080] Using the in-situ chemical etching method, the copper foam is placed in the sodium hydroxide / ammonium persulfate mixture to grow high-density and uniform Cu(OH) 2 nanoarray; the synthesized Cu(OH) 2 The nanoarrays were put into a muffle furnace and calcined at 180°C for 1 h to obtain CuO nanowires with a black-brown array structure. The copper foam covered with CuO nanowires was immersed in 50 mL of pyrrole monomer solution with a volume ratio of 1:80, and then Transfer to a reaction kettle, react at 150°C for 7 hours, take out the sample after the reaction is completed and cool to room temperature, wash with distilled water and ethanol respectively, put it in an oven to dry at 60°C, and then immerse it in 80mL with a volume ratio of 1:12 Soak in stearyl chloride solution at 60°C, take it out after 3 hours, and get superhydrophobic and superlipophilic core-shell structure CuO(Cu 2 O) @ppy material.

[0081] After being irradiated by a sunlight intensity for 10 minutes...

Embodiment 2

[0085] Using the in-situ chemical etching method, the copper foam is placed in the sodium hydroxide / ammonium persulfate mixture to grow high-density and uniform Cu(OH) 2 nanoarray; the synthesized Cu(OH) 2 The nanoarrays were put into a muffle furnace and calcined at 180°C for 1 h to obtain CuO nanowires with a black-brown array structure. The copper foam covered with CuO nanowires was immersed in 50 mL of pyrrole monomer solution with a volume ratio of 1:100, and then Transfer to a reaction kettle, react at 150°C for 5 hours, take out the sample after cooling to room temperature after the reaction, wash with distilled water and ethanol respectively, dry at 60°C, and then immerse it in 80mL of stearyl chloride with a volume ratio of 1:13 Soak in the solution at 60°C, take it out after 4 hours, and get CuO(Cu 2 O) @ppy material.

[0086] After being irradiated by a sunlight intensity for 10 minutes, the CuO(Cu 2 O) The temperature of the @ppy material reaches 77.3°C, and the...

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Abstract

The invention belongs to the technical field of nanomaterials, and particularly relates to an oil-water separating membrane material and a preparation method and application thereof. The oil-water separating membrane material is characterized in that an initiation system composed of copper oxide nanowires and ethyl alcohol is used for initiating pyrrole monomers to be subjected to in-situ oxidation-reduction polymerization on the surfaces of the copper oxide nanowires, a compact polypyrrole coating layer is formed, and a CuO (Cu2O)@ppy material of a core-shell structure is constructed; and a super-hydrophobic and super-oleophylic oil-water separating membrane material is obtained by modifying the surface of the material with super-hydrophobic stearoyl chloride, has excellent photo-thermal conversion performance, extremely high corrosion resistance and long service life, can be repeatedly used, and can be used for realizing efficient purification and recovery of crude oi. The crisis of energy shortage is relieved, meanwhile, sewage recycling is completed, and the environmental problem is relieved.

Description

technical field [0001] The application belongs to the technical field of nanomaterials, in particular to an oil-water separation membrane material and its preparation method and application. Background technique [0002] With the rapid development of modern industry, the amount of oil extraction continues to increase. During the extraction process, many methods of water injection and pressurization are used for extraction, which produces a large number of oil-water mixtures that require fast and efficient crude oil purification and separation. In addition, with frequent oil spill accidents at sea, oily sewage has posed a great threat to human ecological balance and human health. Therefore, the efficient and economical treatment of oil-water mixtures is one of the important ways to obtain oil and water resources. First, it is of great significance to effectively realize the separation of oil and water and the collection and purification of crude oil. [0003] Membrane separa...

Claims

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Application Information

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IPC IPC(8): B01D69/02B01D67/00B01D17/022
CPCB01D69/02B01D67/00B01D17/0202B01D2325/38Y02A20/131
Inventor 黄方志李士阔查长虹吴超刘建珂
Owner 深圳中拓天达环境工程有限公司
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