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Super-hydrophobic and superoleophilic metal nickel net as well as preparation method and application thereof

A super-oleophilic and super-hydrophobic technology, applied in separation methods, chemical instruments and methods, and separation of immiscible liquids, can solve problems such as high cost, poor durability, and complex manufacturing process of super-hydrophobic and super-oleophilic membrane materials, and achieve The effect of small rolling angle, good durability, and good recyclability

Active Publication Date: 2017-11-21
中国科学院上海硅酸盐研究所苏州研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problems of complex manufacturing process, high cost, and poor durability of the above-mentioned superhydrophobic superoleophilic membrane material for oil-water separation, the purpose of the present invention is to provide a superhydrophobic superhydrophobic membrane material that is simple, easy to operate, low cost and has good durability. Oleophilic metal nickel mesh and preparation method thereof, in order to realize stable and efficient oil-water separation effect

Method used

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  • Super-hydrophobic and superoleophilic metal nickel net as well as preparation method and application thereof
  • Super-hydrophobic and superoleophilic metal nickel net as well as preparation method and application thereof
  • Super-hydrophobic and superoleophilic metal nickel net as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A nickel mesh sample with a diameter of 4 cm (mass 0.65 g) was ultrasonicated in acetone, ethanol, and pure water for 10 minutes, washed with pure water and dried in an oven at 50°C for 2 hours; then immersed in 3M HCl solution for 2 After taking it out, wash it with pure water and dry it in an oven at 50°C for 2 hours; then soak it in 70 ml of thiourea solution with a concentration of 13.8%, and conduct a closed hydrothermal reaction at 180°C for 6 hours, take it out, wash it with pure water, and then It was dried in an oven at 50°C for 2 hours; then the sample was immersed in a 0.1% ethanol solution of octadecanethiol (50 ml) for 24 hours, taken out and washed with ethanol and dried in an oven at 50°C for 2 hours. Finally, the Ni used in this experiment was obtained 3 S 2 Superhydrophobic superoleophilic nickel mesh. figure 1 for the resulting Ni 3 S 2 SEM photographs of superhydrophobic superoleophilic nickel mesh, visible, Ni 3 S 2 It is rod-shaped, with a dia...

Embodiment 2

[0050] A nickel mesh sample (0.63g) with a diameter of 4 cm was ultrasonicated in acetone, ethanol and pure water for 10 minutes, washed with pure water and dried in an oven at 50°C for 2 hours; then immersed in 3M HCl solution for 2 hours, After taking it out, wash it with pure water and dry it in an oven at 50°C for 2 hours; then immerse it in a thiourea solution (70 ml) with a concentration of 13.8%, and conduct a closed hydrothermal reaction at 180°C for 12 hours. After taking it out, wash it with pure water and put it on Dry in an oven at 50°C for 2 hours; then put the sample in 0.1% stearyl mercaptan ethanol solution (50 ml) for 12 hours, take it out and wash it with ethanol and dry it in an oven at 50°C for 2 hours. Finally, the Ni used in this experiment was obtained 3 S 2 Superhydrophobic superoleophilic nickel mesh. Through measurement, the contact angle reached 150°, and the rolling angle was about 13°, showing good superhydrophobic performance. The Ni 3 S 2 Th...

Embodiment 3

[0053] A nickel mesh sample (0.65 g) with a diameter of 4 cm was ultrasonicated in acetone, ethanol and pure water for 10 minutes, washed with pure water and dried in an oven at 50 °C for 2 hours; then immersed in 3M HCl solution for 2 hours, After taking it out, wash it with pure water and dry it in an oven at 50°C for 2 hours; then immerse it in a mixed solution of ammonium molybdate and thiourea (70 ml), in which the mass concentration of ammonium molybdate is 15%, and the concentration of thiourea is 40%. Hydrothermal reaction at 230°C for 24 hours, take it out, wash it with pure water, and dry it in an oven at 50°C for 2 hours; then put the sample in 0.1% stearyl mercaptan ethanol solution (50 ml) for 24 hours, take it out After washing with ethanol, dry in an oven at 50°C for 2 hours. Finally, the superhydrophobic superlipophilic MoS used in this experiment was obtained 2 -Ni 3 S 2 Finished nickel mesh. Figure 4 For its SEM photo, it can be seen that MoS 2 and Ni ...

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Abstract

The invention relates to a super-hydrophobic and superoleophilic metal nickel net as well as a preparation method and application thereof. The super-hydrophobic and superoleophilic metal nickel net comprises a nickel net and a metal sulfide coating with a micro-nanostructure; the metal sulfide coating is generated on the surface of the nickel net in situ, is modified by a surface modifier and is an Ni3S2 coating or a composite coating of Ni3S2 and MoS2; the surface modifier is a silane coupling agent or / and a mercaptan long-chain compound.

Description

technical field [0001] The invention relates to a separation metal mesh and a preparation method thereof, in particular to a super-hydrophobic and super-oleophilic metal nickel mesh for separating oil-water mixtures, a preparation method and application thereof. Background technique [0002] With the continuous improvement of people's requirements for material living standards, more and more oily wastewater will be produced in industrial production and daily life. According to incomplete statistics, at least 5 million to 10 million tons of oil per year are discharged into water, soil or the atmosphere through wastewater. The damage to the environment and human beings caused by oil entering the water body is very serious: when the oil film on the water surface reaches a certain thickness, the oil film will isolate the gas exchange between the air and the water body, causing hypoxia in the water area, and killing a large number of fish, shrimp and other aquatic organisms The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/022
CPCB01D17/02
Inventor 刘阳桥顾雅洁孙盛睿于伟东
Owner 中国科学院上海硅酸盐研究所苏州研究院
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