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Cuprous sulfide material with surface hydrophobicity and preparation method for cuprous sulfide material

A cuprous sulfide, hydrophobic technology, applied in chemical instruments and methods, analytical materials, metal material coating processes, etc., can solve the problems of complex processes, unfavorable hydrophobic surfaces, and many influencing factors, and achieves simple process and low cost. Low, repeatable effect

Active Publication Date: 2020-01-21
XUCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of cuprous sulfide by electrochemical method has many influencing factors and complicated process. The preparation process requires the help of electrodeposition equipment, and the prepared cuprous sulfide wall structure is very tightly arranged, which is not conducive to the preparation of hydrophobic surfaces.

Method used

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  • Cuprous sulfide material with surface hydrophobicity and preparation method for cuprous sulfide material
  • Cuprous sulfide material with surface hydrophobicity and preparation method for cuprous sulfide material
  • Cuprous sulfide material with surface hydrophobicity and preparation method for cuprous sulfide material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Prepare a cuprous sulfide flake array with surface hydrophobicity, the specific steps are as follows:

[0040] (1) Take a copper sheet (produced by Shanghai Sinopharm Group, with a thickness of 0.1mm and a purity of 99.9%) as a copper-based material, which is polished with sandpaper, ultrasonically cleaned with deionized water, ultrasonically cleaned with absolute ethanol, and then cleaned with deionized water Clean and dry naturally for later use.

[0041] (2) Place the copper-based material treated in step (1) in 2mol L at 15°C -1 React in a sodium hydroxide solution for 48 hours, take it out, wash it with a large amount of deionized water, and dry it naturally.

[0042] (3) Place the treated sample in step 2) in 0.2mol L at 17°C -1 React in a sodium sulfide solution for 24 hours, take it out, rinse it with a large amount of deionized water, and dry it with a hair dryer (the static contact angle of the sample to water in air does not exceed 30°).

[0043] (4) Heat th...

Embodiment 2

[0046] Prepare a cuprous sulfide flake array with surface hydrophobicity, the specific steps are as follows:

[0047] (1) Get the copper sheet (produced by Shanghai Sinopharm Group, the thickness is 0.1mm, and the purity is 99.9%) to be the copper-based material, polished with sandpaper, ultrasonically cleaned with deionized water, ultrasonically cleaned with absolute ethanol, and cleaned with deionized water, Let it dry naturally.

[0048] (2) Place the copper-based material treated in step (1) in 2mol L at 15°C -1 React in a sodium hydroxide solution for 48 hours, take it out, wash it with a large amount of deionized water, and dry it naturally.

[0049] (3) Place the treated sample in step 2) in 0.4mol·L at 17°C -1 React in a sodium sulfide solution for 72 hours, take it out, rinse it with a large amount of deionized water, and dry it with a hair dryer (the static contact angle of the sample to water in air does not exceed 30°).

[0050] (4) Heat the sample treated in st...

Embodiment 3

[0053] Prepare a cuprous sulfide flake array with surface hydrophobicity, the specific steps are as follows:

[0054] (1) Get the copper sheet (produced by Shanghai Sinopharm Group, the thickness is 0.1mm, and the purity is 99.9%) to be the copper-based material, polished with sandpaper, ultrasonically cleaned with deionized water, ultrasonically cleaned with absolute ethanol, and cleaned with deionized water, Let it dry naturally.

[0055] (2) Place the copper-based material treated in step (1) in 2mol L at 15°C -1 React in a sodium hydroxide solution for 48 hours, take it out, wash it with a large amount of deionized water, and dry it naturally.

[0056] (3) Place the treated sample in step 2) in 0.6mol·L at 17°C -1 React in a sodium sulfide solution for 72 hours, take it out, rinse it with a large amount of deionized water, and dry it with a hair dryer (the static contact angle of the sample to water in air does not exceed 30°).

[0057] (4) Heat the sample treated in st...

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Abstract

The invention belongs to the technical field of solid surfaces, and particularly relates to a cuprous sulfide material with the surface hydrophobicity and a preparation method for the cuprous sulfidematerial. The cuprous sulfide material is prepared by densely and vertically arranging cuprous sulfide nanosheets on the surface of a copper-based material and then performing hydrophobic treatment, wherein the size of each cuprous sulfide nanosheet is 0.5-10 microns, and the thickness is 0.1-0.5 micron. The cuprous sulfide material is prepared by using a three-step method which comprises the following steps of step 1, performing in-situ growth of cuprous oxide on the surface of the copper-based material; step 2, performing in-situ growth of the cuprous sulfide nanosheets on the surface of thecuprous oxide; and step 3, enabling the surface of the cuprous sulfide material to be hydrophobic by heating treatment or putting a product in air. The preparation method is simple in process, easy to operate, beneficial to large-scale industrial production and preparation of a cuprous sulfide flake array with the hydrophobicity; and by performing surface hydrophobic modification through a methodof heating treatment or placement in the air only, chemical modification with additional use of low-surface-energy substances is avoided, and the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of solid surfaces, and in particular relates to a cuprous sulfide material with surface hydrophobicity and a preparation method thereof. Background technique [0002] The wettability of a solid surface is mainly determined by the rough structure and chemical composition of the solid surface. In recent decades, due to the increasing role of special wettable solid surfaces in industrial and agricultural production and people's daily life, it has attracted extensive attention of researchers. [0003] With the continuous development of nanotechnology, people have conducted extensive research on semiconductor materials with micro-nanostructures. As a p-type semiconductor material, cuprous sulfide has a bandgap of about 1.2eV and is widely used in solar cells, biosensing and other fields. For solid / liquid (solid / gas) interface contact reactions, the micro-nano structure and wettability of the solid surface have ...

Claims

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Application Information

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IPC IPC(8): C23C22/63C23C22/83B82Y40/00B01J27/04G01N33/00
CPCC23C22/63C23C22/83B82Y40/00B01J27/04G01N33/0004
Inventor 陈新华张万强吴茹梦谢燕吴笑程换换赵一兵侯珂珂王宏胜
Owner XUCHANG UNIV
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