Bionic construction of metal-foam-based oil-water separation material

A metal foam, oil-water separation technology, applied in the direction of liquid separation, separation methods, chemical instruments and methods, etc., can solve the problems of poor separation method effect, difficult oil and material recovery, difficult removal, etc., to achieve low cost and easy raw materials The effect of simple preparation method

Active Publication Date: 2013-01-23
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, due to the lipophilic nature of the oil-absorbing material, oil stains tend to adhere to the surface and pores of the material, which is very difficult to remove, making the effect of the separation method gradually worse, and the recovery of oil and materials has also become a problem

Method used

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  • Bionic construction of metal-foam-based oil-water separation material
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  • Bionic construction of metal-foam-based oil-water separation material

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preparation example Construction

[0028] The second step, the preparation of polyacrylamide hydrogel: measure 20 ~ 70ml deionized and pour it into a beaker, according to the mass ratio of 50:1.5:1:0.5, weigh acrylamide, N,N'-methylene Bisacrylamide, 2,2-diethoxyacetophenone, and polyacrylamide were poured into the above-mentioned beaker filled with deionized water in sequence, and stirred evenly until the solution in the beaker became a transparent colloid, and polyacrylamide was obtained. Acrylamide hydrogel.

[0029] The third step is to immerse the pretreated metal foam in the first step into the prepared polyacrylamide hydrogel, and soak it at room temperature for 0.5-5 minutes (preferably 3 minutes), so that the polyacrylamide hydrogel is completely attached to the After the metal foam is on, take out the metal foam and place the metal foam in a watch glass.

[0030] The fourth step is to use the method of photoinitiated polymerization to irradiate the metal foam in the watch glass under 365nm ultraviole...

Embodiment 1

[0034] Apply the bionic structure proposed by the present invention to build the oil-water separation material based on metal foam, select nickel metal foam, and its method includes the following steps:

[0035] 1. Metal foam pretreatment: take a beaker, pour deionized water, immerse nickel metal foam (30mm×50mm×1mm) in deionized water, put the beaker into an ultrasonic device and ultrasonically clean it for 5 minutes to clean the metal Stains on the surface of the foam; pour out the cleaning solution, pour absolute ethanol (analytical alcohol, ethanol mass fraction ≥ 99.7%) into the beaker, continue to ultrasonically clean the metal foam for 20 minutes, remove the grease on the metal foam, take it out and dry it (oven temperature 60°C), put it in 1mol / L dilute nitric acid solution for 10 minutes, take it out and dry it (oven temperature 60°C) for use;

[0036] Using dilute acid to corrode the surface of the metal foam, the purpose is to make the structure of the metal foam ro...

Embodiment 2

[0043] The bionic construction proposed by the present invention is based on the oil-water separation material of nickel metal foam, and its method comprises the following steps:

[0044] 1. Metal foam pretreatment: take a beaker, pour deionized water, immerse nickel metal foam (20mm×40mm×2mm) in deionized water, put the beaker into an ultrasonic device and ultrasonically clean it for 10 minutes to clean the metal Stains on the surface of the foam; pour out the cleaning solution, pour absolute ethanol (analytical alcohol, ethanol mass fraction ≥ 99.7%) into the beaker, continue to ultrasonically clean the metal foam for 30 minutes, remove the grease on the metal foam, take it out and dry it (oven temperature 70°C), corrode in 2mol / L dilute hydrochloric acid solution for 6 minutes, take it out and dry it (oven temperature 70°C) for use;

[0045] 2. Preparation of polyacrylamide hydrogel: Measure 40ml of deionized water and pour it into a beaker. According to the mass ratio of 5...

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Abstract

The invention discloses bionic construction of a metal-foam-based oil-water separation material and belongs to the technical field of functional materials. A bionic construction method comprises the following steps of: pre-treating metal foam; preparing a polyacrylamide hydrogel; immersing the metal foam into the polyacrylamide hydrogel; and irradiating the metal foam to which the polyacrylamide hydrogel is adhered under ultraviolet light, taking out, cleaning by using deionized water, drying and the like. The preparation method is simple; and by the slight corrosion of nitric acid and the adhesion of the polyacrylamide hydrogel, the metal surface becomes a super-oleophobic / super-hydrophilic surface, so that the material achieves an oil-water separation effect.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and specifically relates to the bionic construction of a metal foam-based oil-water separation material, which solves the existing technical problems of low efficiency and high cost of adsorbing organic matter by substances for oil-water separation. Background technique [0002] The leakage of submarine oil has brought a lot of trouble to our environment and economy, and cleaning up the oil pollution is indeed not an easy task. Researchers are trying to find a good way to separate oil and water, not only to protect our environment, but also to recover oil, a scarce resource, as much as possible. Moisture and impurities in the oil are the key factors affecting the quality of the oil. It is an important subject in the separation process to seek economical and practical and continuous removal of water in the oil. There are two main factors affecting the wettability of solid surfaces: o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/022
Inventor 刘克松张玺瑶李舟江雷
Owner BEIHANG UNIV
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