Graphene/black phosphorus nanosheet/sulfur-containing ionic liquid composite aerogel and preparation method thereof

A composite airgel and nanosheet technology, which is applied in the direction of aerosol preparation, sulfur compounds, phosphorus compounds, etc., can solve the problems of inconvenient recycling and reuse, and there are no research reports on black phosphorus aerogels, so as to facilitate recycling and recycling. Utilization, excellent stability, high recovery effect

Active Publication Date: 2017-12-01
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, most research reports are based on two-dimensional black phosphorus nanosheets or black phosphorus quantum dots, and there is no research report on black phosphorus aerogels.
However, two-dimensional black phosphorus nanosheets or black phosphorus quantum dots mostly exist in the form of powder or solution, which makes it difficult to recycle these black phosphorus materials after use.

Method used

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  • Graphene/black phosphorus nanosheet/sulfur-containing ionic liquid composite aerogel and preparation method thereof
  • Graphene/black phosphorus nanosheet/sulfur-containing ionic liquid composite aerogel and preparation method thereof
  • Graphene/black phosphorus nanosheet/sulfur-containing ionic liquid composite aerogel and preparation method thereof

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Embodiment 1

[0061] A preparation method of graphene / black phosphorus nanosheet / sulfur-containing ionic liquid composite airgel, comprising the following steps:

[0062] Step (1). Prepare uniform, stable black phosphorus nanosheet solution by liquid phase stripping method, and its specific steps are as follows:

[0063] 1-a): Di(butyl)methylsulfonium hexafluorophosphate (ie sulfur-containing ionic liquid) was vacuum-dried at 110°C for 48 hours;

[0064] 1-b): 25 mg of bulk black phosphorus and 500 mg of dried bis(butyl) methylsulfonium hexafluorophosphate (i.e. sulfur-containing ionic liquid) were added to an agate mortar in a mass ratio of 100:2000 for mechanical Grinding for 40 minutes; the mixture obtained after grinding was transferred to a round bottom flask, and 180 mL of N-methylpyrrolidone (NMP) was added to obtain the first mixed solution;

[0065] 1-c): The above-mentioned first mixed solution is subjected to probe ultrasonication for 3 hours, and the ultrasonic power is 600W; a...

Embodiment 2

[0105] A preparation method of graphene / black phosphorus nanosheet / sulfur-containing ionic liquid composite airgel, comprising the following steps:

[0106] Step (1). Prepare uniform, stable black phosphorus nanosheet solution by liquid phase stripping method, and its specific steps are as follows:

[0107]1-a): Di(butyl)methylsulfonium hexafluorophosphate (ie sulfur-containing ionic liquid) was vacuum-dried at 110°C for 48 hours;

[0108] 1-b): 25 mg of bulk black phosphorus and 25 mg of dried bis(butyl) methylsulfonium hexafluorophosphate (i.e. sulfur-containing ionic liquid) were added to an agate mortar in a mass ratio of 100:100 for mechanical Grinding, the grinding time was 40 minutes; the mixture obtained after grinding was transferred to a round bottom flask, and 180 mL of N-methylpyrrolidone (NMP) was added to obtain the first mixed solution;

[0109] 1-c): The above-mentioned first mixed solution is subjected to probe ultrasonication for 3 hours, and the ultrasonic ...

Embodiment 3

[0118] A preparation method of graphene / black phosphorus nanosheet / sulfur-containing ionic liquid composite airgel, comprising the following steps:

[0119] Step (1). Prepare uniform, stable black phosphorus nanosheet solution by liquid phase stripping method, and its specific steps are as follows:

[0120] 1-a): Di(butyl)methylsulfonium hexafluorophosphate (ie sulfur-containing ionic liquid) was vacuum-dried at 110°C for 48 hours;

[0121] 1-b): Add 25 mg of bulk black phosphorus and 5,000 mg of dried di(butyl)methylsulfonium hexafluorophosphate (i.e. sulfur-containing ionic liquid) into an agate mortar in a mass ratio of 100:20,000 for mechanical Grinding, the grinding time was 40 minutes; the mixture obtained after grinding was transferred to a round bottom flask, and 180 mL of N-methylpyrrolidone (NMP) was added to obtain the first mixed solution;

[0122] 1-c): The above-mentioned first mixed solution is subjected to probe ultrasonication for 3 hours, the power is 600W, ...

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Abstract

The invention discloses graphene/black phosphorus nanosheet/sulfur-containing ionic liquid composite aerogel, which includes a graphene three-dimensional framework, as well as black phosphorus nanosheets and a sulfur-containing ionic liquid that are supported thereon; the black phosphorus nanosheets are coated with the sulfur-containing ionic liquid. The graphene/black phosphorus nanosheet/sulfur-containing ionic liquid composite aerogel has a three-dimensional porous network structure and has high elasticity, high resilience, high electric-conductivity and excellent stability. The composite aerogel increases products of black phosphorus and broadens application range of the black phosphorus. The invention also provides a preparation method of the graphene/black phosphorus nanosheet/sulfur-containing ionic liquid composite aerogel.

Description

technical field [0001] The invention belongs to the field of preparation of electrodeless nanometer materials, and in particular relates to a graphene / black phosphorus nanosheet / sulfur-containing ionic liquid composite airgel and its preparation method and application. Background technique [0002] Black phosphorus (Black phosphorene) is a new type of direct bandgap two-dimensional material, its bandgap can be adjusted from 0.3eV (bulk state) to 1.5eV (single layer) through its number of layers, it can absorb from visible light to infrared for communication Light with a wide range of wavelengths, coupled with its high carrier mobility (when the thickness of black phosphorus is 10nm, it can be as high as 1000cm 2 ˙v -1 ˙s -1 ) and higher on-off ratio (10 4 ), making it show great potential advantages in the semiconductor field, optoelectronic field, and photothermal field. [0003] In practical applications, black phosphorus bulks need to be exfoliated into single-layer, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/158C01B25/00C01B32/198C01B17/00B01J13/00
CPCB01J13/0095C01B17/00C01B25/00C01B33/1585
Inventor 张晗邢晨阳张家宜
Owner SHENZHEN UNIV
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