Preparation method of super-hydrophobic porous mesh for oil water separation

An oil-water separation and superphobic technology, applied in separation methods, liquid separation, chemical instruments and methods, etc., can solve the problems of complex operation, high cost, membrane fouling, etc., and achieve simple operation, low cost, and controllable experimental parameters. Effect
CN103849906AInactive Publication Date: 2014-06-11HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2014-06-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a super-hydrophobic porous mesh for oil water separation. A porous meshy Sn film is prepared by using a hydrogen bubble template method. The concrete steps are realized under the following conditions that a platinum sheet is used as an anode, a copper wire mesh is used as an electrode cathode, a plating solution comprises the following components: 0.01-0.2mol.L<-1> of SnSO4 and 0.01-0.2mol.L<-1> of H2SO4, the pH value is equal to 4.0+ / -0.5, the current density is 0.1-6.0A.cm<-2>, and the deposition time is 5-40s. The hydrogen bubble template method for preparing a porous material has the advantages of simplicity, convenience, low cost and parameter controllability; a three-dimensional porous meshy film can be obtained through depositing on the copper wire mesh by using the method; the porous film is prepared by taking a dynamic hydrogen bubble as a template; compared with a hard template method, the method has the advantages that the template is not needed to be removed, the problems such as high cost, complexity in operation and serious film pollution in the traditional method are solved, and the industrial production is expected to be realized.
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Description

technical field

[0001] The invention relates to a preparation method of a super-hydrophobic porous network film. Background technique

[0002] Oily wastewater is a common wastewater in industry. Direct discharge will cause serious harm to the environment, indirectly pollute the atmosphere and soil, and seriously endanger human health. Oil-water separation technology has an important impact in petrochemical and other fields, including the recovery of sea waste oil, oil production wastewater, and the separation of organic solvents. Due to the large difference in surface tension between water and oil, choosing a surface with different wettability to water and oil can selectively adsorb one phase and repel the other phase. Enhancing the wettability of the surface can improve the separation efficiency.

[0003] The superhydrophobic phenomenon ubiquitous in nature, the main factors affecting its wettability are the surface chemical composition and surface microstructure, accordin...

Claims

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