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A kind of black phosphorus quantum dot/attapulgite nanocomposite material and its preparation method and application

A nanocomposite material and composite material technology are applied in the field of black phosphorus quantum dots/attapulgite nanocomposite materials and their preparation, which can solve the problems of limiting the functional application prospect of black phosphorus quantum dots and the harsh preparation process, and avoid mechanical peeling. , the effect of uniform dispersion

Active Publication Date: 2020-05-26
盱眙县中材凹凸棒石粘土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, black phosphorus quantum dots, as a new type of quantum dot material that has just emerged in the past two years, are attracting more and more people's interest. Phosphorus quantum dots are very sensitive to air and water, and often require inert gas isolation protection, and the preparation process is relatively harsh, and only a single black phosphorus quantum dot in an organic solvent solution state can be obtained, which greatly limits the development of black phosphorus quantum dots. Functional application prospects

Method used

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  • A kind of black phosphorus quantum dot/attapulgite nanocomposite material and its preparation method and application
  • A kind of black phosphorus quantum dot/attapulgite nanocomposite material and its preparation method and application

Examples

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Effect test

Embodiment 1

[0015] Disperse 0.35g of black phosphorus powder, 1.0g of attapulgite and 0.2g of NaOH in 100ml of n-methyl-2-pyrrolidone, and vigorously stir at 120°C for 10 hours under the protection of nitrogen. Take the upper suspension and dry it in vacuum to obtain the black phosphorus quantum dot / attapulgite nanocomposite material. The obtained product is observed with a scanning electron microscope and a transmission electron microscope. The SEM and TEM images are as follows: figure 1 with figure 2 Shown: the attapulgite rods present a nanorod-like structure, and the black phosphorus quantum dots are uniform in size and are evenly loaded on the attapulgite rods.

[0016] The black phosphorus quantum dot / attapulgite nanocomposite material in Example 1 is used for photocatalytic denitrification immediately after the preparation is completed. The gas ratio is: 0.1% (volume percentage relative to the total gas flow, the same below) NH 3 , 0.1% NO and 3% O 2 , N 2 As the balance gas, ...

Embodiment 2

[0030] Disperse 0.32g of black phosphorus powder, 0.8g of attapulgite and 0.3g of NaOH in 100ml of n-methyl-2-pyrrolidone and stir vigorously at 140°C for 8 hours under the protection of argon. After the reaction, centrifuge at 7000rpm for 2h , take the upper suspension and dry it in vacuum to obtain the black phosphorus quantum dot / attapulgite nanocomposite material, and the subsequent detection is as in Example 1.

Embodiment 3

[0032] Disperse 0.28g of black phosphorus powder, 1.0g of attapulgite and 0.3g of NaOH in 100ml of n-methyl-2-pyrrolidone, and vigorously stir at 160°C for 6 hours under nitrogen protection. After the reaction, centrifuge at 7000rpm for 2h, Take the upper suspension and dry it in vacuum to obtain the black phosphorus quantum dot / attapulgite nanocomposite material, and the subsequent detection is as in Example 1.

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Abstract

The invention belongs to the field of new chemical materials, and particularly relates to a black phosphorus quantum dot / attapulgite nanocomposite material and its preparation method and application. Black phosphorus powder, attapulgite rods and NaOH are dispersed in an organic solvent, and a solvothermal stirring reaction is performed under the protection of an inert gas. After the reaction, the upper suspension is taken out by high-speed centrifugation and vacuum dried to obtain a black phosphorus quantum dot / attapulgite nanocomposite. Material; when this nanocomposite material is used for denitration, compared with traditional SCR denitration, the conversion efficiency of NO at low temperature is significantly improved, which can greatly reduce energy consumption.

Description

technical field [0001] The invention belongs to the field of new chemical materials, in particular to a black phosphorus quantum dot / attapulgite nanocomposite material and its preparation method and application. Background technique [0002] As an important member of the family of nanomaterials, nano-quantum dot materials have attracted great attention due to their quantum tunneling effect, abundant active sites, up-conversion fluorescence, and excellent electron transport. and other fields have shown great application prospects. [0003] Among them, black phosphorus quantum dots, as a new type of quantum dot material that has just emerged in the past two years, are attracting more and more people's interest. Phosphorus quantum dots are very sensitive to air and water, and often require inert gas isolation protection, and the preparation process is relatively harsh, and only a single black phosphorus quantum dot in an organic solvent solution state can be obtained, which gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/182B01J37/08B82Y30/00B82Y40/00B01D53/86B01D53/56
CPCB01D53/8628B82Y30/00B82Y40/00B01J27/182B01J37/08B01D2255/70B01J35/39
Inventor 于龙庆鲁光辉姚超李霞章
Owner 盱眙县中材凹凸棒石粘土有限公司
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