Preparation method and application of cobalt oxide supported composite mesh film bifunctional material

A bifunctional material, cobalt oxide technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, separation methods, etc. Complex equipment requirements, single functionalization and other problems, to achieve the dual functions of catalysis and oil-water separation, increase roughness, and simple operation methods

Active Publication Date: 2019-02-01
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the traditional oil-water separation method, there are disadvantages such as long time-consuming, high energy consumption, complex equipment requirements, etc., and the single function makes it impossible to realize the dual functions of oil-water separation and antibiotic catalytic degradation at the same time. To explore and develop a more effective simultaneous dual-function material is of great importance

Method used

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  • Preparation method and application of cobalt oxide supported composite mesh film bifunctional material
  • Preparation method and application of cobalt oxide supported composite mesh film bifunctional material
  • Preparation method and application of cobalt oxide supported composite mesh film bifunctional material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Dissolve the cobalt chloride in the ethanol solution to obtain a cobalt chloride ethanol solution with a mass percentage concentration of 0.5%, perform ultrasonic oscillation for 15 minutes, fully dissolve, and wait for use; after the stainless steel mesh is appropriately cut, put it in acetone and ethanol solutions in turn Ultrasonic treatment was carried out for 60 min; then the treated stainless steel mesh was immersed in a cobalt chloride ethanol solution for 30 s, and then the stainless steel mesh was taken out and burned under the external flame of an alcohol lamp for 40 s to obtain a cobalt oxide-supported omentum bifunctional material.

[0026] Pad the bifunctional material of the cobalt oxide loaded omentum in the PTFE flange, assemble the oil-water separation device, weigh the persulfate at a concentration of 5 mmol / L and add it to the oil-water mixture to be treated, and pour the oil-water mixture into the oil-water mixture. In the quartz tube, it was found th...

Embodiment 2

[0028] Dissolve cobalt chloride in an ethanol solution to obtain a cobalt chloride ethanol solution with a mass percentage concentration of 3%, perform ultrasonic vibration for 25 minutes, fully dissolve, and wait for use; after appropriately cutting the stainless steel mesh, put it into acetone and ethanol solutions in turn Ultrasonic treatment was carried out for 90 min; then the treated stainless steel mesh was immersed in a cobalt chloride ethanol solution for 60 s, and then the stainless steel mesh was taken out and burned under the external flame of an alcohol lamp for 60 s to obtain a cobalt oxide-supported omentum bifunctional material.

[0029] Pad the bifunctional material of the cobalt oxide-loaded omentum in the PTFE flange, assemble the oil-water separation device, weigh the persulfate at a concentration of 7.5 mmol / L and pour it into the oil-water mixture to be treated. Pour it into the quartz tube, and find that the oil is blocked above the flange, and the water ...

Embodiment 3

[0031] Dissolve cobalt chloride in an ethanol solution to obtain a cobalt chloride ethanol solution with a mass percentage concentration of 1.5%, perform ultrasonic vibration for 30 minutes, fully dissolve, and stand by for use; after appropriately cutting the stainless steel mesh, put it into acetone and ethanol solutions in turn Ultrasonic treatment was carried out for 120 min; then the treated stainless steel mesh was immersed in a cobalt chloride ethanol solution for 45 s, and then the stainless steel mesh was taken out and burned under the external flame of an alcohol lamp for 45 s to obtain a cobalt oxide-supported omentum bifunctional material.

[0032] Pad the bifunctional material of the cobalt oxide loaded omentum in the PTFE flange, assemble the oil-water separation device, weigh the persulfate at a concentration of 10 mmol / L and pour it into the oil-water mixture to be treated, and pour it into the In the quartz tube, it was found that the oil was blocked above the ...

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Abstract

The invention belongs to the technical field of preparation technologies of nanometer functional mesh film materials, and concretely relates to a preparation method of a cobalt oxide supported composite mesh film bifunctional material. The method concretely comprises the following steps: (1) dissolving cobalt chloride in an ethanol solution to obtain an ethanol solution of cobalt chloride, havinga certain concentration, and performing ultrasonic vibration to achieve sufficient dissolving; (2) properly cutting a stainless steel mesh, and sequentially ultrasonically treating the cut stainless steel mesh in an acetone solution and the ethanol solution; and (3) immersing the treated stainless steel mesh in the ethanol solution of cobalt chloride, prepared in step (1), taking out the stainlesssteel mesh, and burning the stainless steel mesh above the outer flame of an alcohol burner to obtain the cobalt oxide supported composite mesh film bifunctional material. The cobalt chloride used inthe invention is oxidized to obtain tricobalt tetroxide having a catalytic function, so the catalysis performance is achieved, and the roughness of the surface of the mesh film is increased; and themesh film has the dual functions of catalysis and oil-water separation, and has excellent comprehensive performances.

Description

technical field [0001] The invention relates to a preparation method of a cobalt oxide-supported mesh membrane bifunctional material, which has both catalytic performance and oil-water separation performance, and belongs to the technical field of nano-functional mesh membrane material preparation technology. Background technique [0002] With the frequent occurrence of marine oil spill accidents and the massive discharge of industrial oily sewage, the environmental problems caused by oil pollution are becoming more and more serious. And with the abuse of antibiotics, as many as 24 kinds of antibiotic contamination were detected in seawater. [0003] The traditional preparation methods of nano-membrane materials for oil-water separation include chemical oxidation method, hydrothermal method, etc., and the processing steps are cumbersome, including a series of complex steps such as high-temperature calcination, high-temperature hydrothermal, dissolution and dispersion; based o...

Claims

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Application Information

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IPC IPC(8): C02F1/40C02F1/58B01J23/75C02F101/36C02F101/38C02F101/30
CPCB01J23/75C02F1/40C02F1/58C02F2101/308C02F2101/36C02F2101/38C02F2101/40
Inventor 葛文娜戴江栋谢阿田张瑞龙闫永胜周志平
Owner JIANGSU UNIV
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