Preparation method of bionic oil-water separation copper net

A technology of bionic oil and copper mesh, which is applied in the field of preparing bionic oil-water separation copper mesh by electrochemical deposition method, can solve the problems of complicated processing steps, easy to be polluted, high operating costs, etc., and achieve good mechanical stability and reusable properties, The effect of controllable experimental parameters and low cost

Inactive Publication Date: 2015-11-25
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the treatment methods have problems such as expensive equipment, complicated treatment steps, long treatment time, and regeneration pollution to the environment.
Although the membrane separation method is simple, efficient and widely used in the oil-water separation process, it is prone to pollution, difficult to clean, and high operating costs in practical applications.

Method used

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  • Preparation method of bionic oil-water separation copper net
  • Preparation method of bionic oil-water separation copper net
  • Preparation method of bionic oil-water separation copper net

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of a bionic oil-water separation copper mesh, the specific steps are as follows:

[0032] A. Pretreatment of the copper mesh: Place the copper mesh in dilute hydrochloric acid, acetone and distilled water for 10 minutes of ultrasonic cleaning to remove the oxide film and dirt on the surface;

[0033] B. Electrochemical deposition: The copper grid after cleaning is immersed in the electroplating solution for electrolysis. The electroplating solution is composed of 0.12mol / L copper sulfate and 0.1mol / L sulfuric acid. The volume of the electroplating solution is 150ml. The anode and the copper mesh are used as the cathode to electroplate the copper mesh. The voltage is 3.5V and the electroplating time is 100s. Double-layer hierarchical structure surface;

[0034] C. Surface modification: After the electroplating is completed, soak the copper mesh with bionic micro-nano double-layer hierarchical structure to contain 1.5×10 -3 mol / L ethanol solution of...

Embodiment 2

[0036] A preparation method of a bionic oil-water separation copper mesh, the specific steps are as follows:

[0037] A. Pretreatment of the copper mesh: Place the copper mesh in dilute hydrochloric acid, acetone and distilled water for 10 minutes of ultrasonic cleaning to remove the oxide film and dirt on the surface;

[0038] B. Electrochemical deposition: The copper net after cleaning is immersed in the electroplating solution for electrolysis. The electroplating solution is composed of 0.12mol / L copper sulfate and 0.2mol / L sulfuric acid. The volume of the electroplating solution is 180ml. The anode and the copper mesh are used as the cathode to electroplate the copper mesh. The voltage is 3.5V and the electroplating time is 150s. layer hierarchy surface;

[0039] C. Surface modification: After the electroplating is completed, soak the copper mesh with bionic micro-nano double-layer hierarchical structure to contain 1.5×10 -3 mol / L ethanol solution of lauric acid, take it...

Embodiment 3

[0041] A preparation method of a bionic oil-water separation copper mesh, the specific steps are as follows:

[0042] A. Pretreatment of the copper mesh: Place the copper mesh in dilute hydrochloric acid, acetone and distilled water for 10 minutes of ultrasonic cleaning to remove the oxide film and dirt on the surface;

[0043]B. Electrochemical deposition: The copper grid after cleaning is immersed in the electroplating solution for electrolysis. The electroplating solution is composed of 0.15mol / L copper sulfate and 0.2mol / L sulfuric acid. The volume of the electroplating solution is 200ml; The anode and the copper mesh are used as the cathode to electroplate the copper mesh, the voltage is 4.0V, and the electroplating time is 250s. After the reaction is completed, a microstructure is formed on the surface of the copper mesh as a bionic papillae, that is, a bionic micro-nano scale double-layer is formed on the copper substrate. layer hierarchy surface;

[0044] C. Surface m...

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Abstract

The invention relates to a preparation method of a bionic oil-water separation copper net; and the preparation method is enlightened by hydrophobic self-cleanness of natural plant leaf surfaces, and an electrochemical deposition method is adopted to prepare super-hydrophobic surfaces with bionic micro-nanoscale double-layer classification. The method comprises the following steps: firstly, diluted hydrochloric acid, acetone and distilled water are used to clean the copper net for pretreatment; then, the copper net is dipped in electroplating liquid for electrochemical deposition, so that the surface morphology features are changed, and a bionic micro-nanoscale double-layer classification structure is formed on the surface of the copper net; after the electric deposition is finished, the copper net with the bionic micro-nanoscale double-layer classification structure is dipped into modifying solution, so that the surface thereof is formed with a low-surface-energy film; and finally, the surface of the copper net has super-hydrophobic and super-oleophylic characteristics. The preparation method of the bionic oil-water separation copper net is simple in operation, controllable in experimental parameters and low in cost, and can be used for manufacturing oil-water separation materials; and the materials have the super-hydrophobic and super-oleophylic characteristics, excellent mechanical stability and the recycling property.

Description

technical field [0001] The invention relates to a preparation method of a superhydrophobic and superoleophilic oil-water separation copper mesh, in particular to a method for preparing a bionic oil-water separation copper mesh by using an electrochemical deposition method. Background technique [0002] In the past few years, oil spill accidents have occurred continuously all over the world. At the same time, a large amount of industrial oily wastewater has been directly discharged into the environment, polluting the atmosphere and soil, and seriously endangering human health. Oil-water separation has become a severe challenge, which has attracted widespread attention at home and abroad. At present, oily sewage treatment methods are mainly divided into: membrane separation method, oil skimmer method, centrifugal separation method, biological oxidation method, gravity separation method, magnetic separation method, flotation method, adsorption method and chemical method. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D7/04C25D3/38C25D5/48
Inventor 刘燕张开腾姚文广韩志武任露泉
Owner JILIN UNIV
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