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A kind of tin disulfide-black phosphorus composite material, preparation method and application thereof

A technology of tin disulfide and composite materials, which is used in chemical instruments and methods, analytical materials, tin compounds, etc., can solve the problems of high working temperature, inability to achieve ppb level gas detection, etc., and achieves stable bonding and is conducive to gas sensing characteristics. , the effect of high efficiency and productivity

Active Publication Date: 2021-08-13
咸阳瞪羚谷新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of tin disulfide applied to gas sensors that the working temperature is too high and the detection of ppb level gas cannot be realized, and to provide a tin disulfide-black phosphorus composite material, a preparation method and its application

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  • A kind of tin disulfide-black phosphorus composite material, preparation method and application thereof
  • A kind of tin disulfide-black phosphorus composite material, preparation method and application thereof
  • A kind of tin disulfide-black phosphorus composite material, preparation method and application thereof

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Embodiment 1

[0043] 1) The present invention adopts the electrochemical method to strip and prepare black phosphorus nanosheets, and the specific operation is as follows:

[0044] The platinum wire was used as the counter electrode, and the black phosphorus block material was used as the working electrode to form a two-phase working circuit, and a voltage of 10 V was provided through the electrochemical workstation for 30 min; the electrolyte was dimethyl ammonium tetrafluoroborate dissolved in dimethyl For sulfoxide solution, 300 mg tetramethylammonium tetrafluoroborate was added to every 50 mL of dimethyl sulfoxide; the black phosphorus block swelled into a sponge.

[0045] 2) The spongy black phosphorus was dispersed in the cell breaker, the setting time was 7 min, the power was 270 W, and the working time and rest time were 5 s respectively.

[0046] 3) Centrifuge the dispersed black phosphorus nanosheets at a speed of 2000 rpm for 5 minutes, and then take the suspension above it to re...

Embodiment 2

[0061] 1) In the two-phase electrolyzer device, the platinum wire is used as the counter electrode, and the black phosphorus block material is used as the working electrode, and the voltage of 15 V is provided through the electrochemical workstation and kept for 15 min; the electrolyte used is dissolved tetramethyltetrafluoroethylene Ammonium borate solution in dimethyl sulfoxide with 100 mg tetramethylammonium tetrafluoroborate added per 30 mL of dimethyl sulfoxide.

[0062] 2) The spongy black phosphorus obtained after electrochemical stripping was crushed in a cell crusher for 6 minutes with a power of 240W, and the working time and rest time were 4 s, respectively.

[0063] 3) Centrifuge the dispersed black phosphorus nanosheets at a speed of 1500 rpm for 8 min, and then take the suspension above it.

[0064] 4) The suspension dispersed with black phosphorus nanosheets was centrifuged in absolute ethanol at a speed of 10,000 rpm for 8 min, collected and dried in a vacuum o...

Embodiment 3

[0069]1) Use platinum wire as the positive electrode and black phosphorus bulk material as the negative electrode in the two-phase electrolyzer device, use platinum wire as the counter electrode, black phosphorus bulk material as the working electrode, provide 25 V voltage through the electrochemical workstation, and keep 10 min; the bulk black phosphorus swells into a sponge shape, and the electrolyte used is a dimethyl sulfoxide solution containing tetramethylammonium tetrafluoroborate, and 200 mg tetramethylammonium tetrafluoroborate is added to every 40 mL of dimethyl sulfoxide .

[0070] 2) Disperse the spongy black phosphorus in the cell crusher, set the time to 10 min, the power to 210 W, and the working time and rest time to be 3 s, respectively.

[0071] 3) Centrifuge the dispersed black phosphorus nanosheets at a speed of 1800 rpm for 6 min, and then take the suspension above it.

[0072] 4) The ultrasonicated black phosphorus nanosheets were cleaned by centrifugati...

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Abstract

The invention discloses a tin disulfide-black phosphorus composite material, a preparation method and an application thereof, belonging to the field of material preparation. A preparation method of tin disulfide-black phosphorus composite material, comprising the following steps: 1) dispersing black phosphorus nanosheets in absolute ethanol, and adding tin tetrachloride pentahydrate and cysteine ​​successively to obtain a precursor solution; 2) After the precursor is transferred to a polytetrafluoroethylene reactor, a solvothermal reaction is carried out, and the obtained reaction product is centrifugally cleaned and dried to obtain a tin disulfide-black phosphorus composite material. The tin disulfide-black phosphorus composite material prepared by the preparation method of the invention has uniform appearance and stable performance. Invented tin disulfide-black phosphorus composite material as a gas-sensing material in NO 2 Application in gas sensor, able to detect ppb level NO at room temperature 2 With obvious and fast response and good selectivity, it has great application prospects in the field of gas sensing.

Description

technical field [0001] The invention belongs to the field of material preparation, in particular to a tin disulfide-black phosphorus composite material, a preparation method and an application thereof. Background technique [0002] In recent years, the problem of air pollution has become increasingly serious, which has attracted widespread international attention. The rapid development of science and technology and industry is accompanied by a large amount of harmful gas emissions, which has caused extremely serious adverse effects on the atmospheric environment and has gradually threatened the living environment of human beings. [0003] NO 2 It is a harmful gas with high content in industrial waste gas and automobile exhaust. In order to improve the atmospheric environment and control the emission of harmful gases, the NO 2 Real-time monitoring of emissions is crucial for regulating gas emissions. Based on this, the development of NO 2 Gas sensors that can respond qui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G19/00C01B25/00G01N27/12
CPCC01B25/003C01G19/00C01P2002/70C01P2002/72C01P2002/82C01P2002/85C01P2004/03C01P2004/04G01N27/12G01N27/127
Inventor 戴正飞梁婷婷张旭张鹏飞
Owner 咸阳瞪羚谷新材料科技有限公司
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