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Method for preparing layered MoS2-SnO2 nano composite material

A nano-composite material, mos2-sno2 technology, applied in the field of metal molybdenum, can solve the problems of poor photocatalysis and lubricating performance, unsuitable for industrial production, complex preparation process, etc., achieve high preparation efficiency, improve catalytic hydrogenation and lubrication performance. , the effect of simple operation

Active Publication Date: 2016-06-22
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Based on the problems existing in the prior art, the present invention proposes a layered MoS 2 -SnO 2 Preparation method of nanocomposite materials to obtain layered MoS with nanoscale and superior properties 2 -SnO 2 Nanocomposites to address existing MoS 2 -SnO 2 The preparation process of composite materials is complicated, consumes a lot of energy, is not suitable for industrial production, and is in the form of particles, which makes the photocatalytic and lubricating performance poor.

Method used

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  • Method for preparing layered MoS2-SnO2 nano composite material
  • Method for preparing layered MoS2-SnO2 nano composite material
  • Method for preparing layered MoS2-SnO2 nano composite material

Examples

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Embodiment 1

[0039] This example gives a layered MoS 2 -SnO 2 A method for preparing a nanocomposite material, the method specifically comprising the following steps:

[0040] Step 1: Take 10g of molybdenum disulfide powder and grind it to 200 mesh and sieve it, add it to an ethanol solution with a mass concentration of 10% and containing 100g of polyphenylene sulfide, heat it in a water bath to 30°C and stir for 12h to obtain a mixed solution.

[0041] Step 2, add 5gKMnO in the mixed solution 4 powder, heated to 50°C in a water bath and stirred for 5h, adding 3g of SnO under rapid stirring 2 Nano powder, continue to stir for 1h, filter and dry the filter cake to obtain 6.5g intercalated MoS 2 -SnO 2 Mix powder.

[0042] Step 3, take 3g intercalated MoS 2 -SnO 2 The mixed powder and 1.5g of picric acid are evenly mixed and put into a high-pressure reactor, vacuumized and argon is introduced, the reactor is heated to 500°C and explodes, and after cooling to room temperature with the ...

Embodiment 2

[0048] This example gives a layered MoS 2 -SnO 2 A method for preparing a nanocomposite material, the method specifically comprising the following steps:

[0049] Step 1: Grind 10 g of molybdenum disulfide powder to a 200-mesh sieve, add it to an ethanol solution with a mass concentration of 20% and containing 200 g of polyphenylene sulfide, heat in a water bath to 40° C. and stir for 10 h to obtain a mixed solution.

[0050] Step 2, add 10gKMnO in the mixed solution 4 powder, heated to 60°C in a water bath and stirred for 4.5h, adding 6g of SnO under rapid stirring 2 Nano powder, continue to stir for 1.5h, filter and dry the filter cake to obtain 8g intercalated MoS 2 -SnO 2 Mix powder.

[0051] Step 3, take 3g intercalated MoS 2 -SnO 2 The mixed powder and 3g of picric acid are evenly mixed and put into the high-pressure reactor, vacuumized and argon is introduced, the reactor is heated to 480°C to explode, and the explosive reactant is taken out after cooling to room...

Embodiment 3

[0054] This example gives a layered MoS 2 -SnO 2 A method for preparing a nanocomposite material, the method specifically comprising the following steps:

[0055] Step 1: Grind 10 g of molybdenum disulfide powder to a 200-mesh sieve, add it to an ethanol solution with a mass concentration of 30% and containing 300 g of polyphenylene sulfide, heat it in a water bath to 50° C. and stir for 8 hours to obtain a mixed solution.

[0056] Step 2, add 15gKMnO in the mixed solution 4 powder, heated to 70°C in a water bath and stirred for 4h, adding 9g of SnO under rapid stirring 2 Nano powder, continue to stir for 2h, filter and dry the filter cake to obtain 12g intercalated MoS 2 -SnO 2 Mix powder.

[0057] Step 3, take 3g intercalated MoS 2 -SnO 2 The mixed powder and 4.5g of picric acid are evenly mixed and put into a high-pressure reactor, vacuumized and argon is introduced, the reactor is heated to 450°C to explode, and the explosive reactant is taken out after cooling to r...

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Abstract

The invention provides a method for preparing a layered MoS2-SnO2 nano composite material. Molybdenum disulfide powder is added into a layering solution for layering reaction to form a mixed solution; oxidant is added into the mixed solution for oxidation-intercalation reaction, then SnO2 nano powder is added under the stirring condition and continues to be stirred evenly, and intercalation MoS2-SnO2 mixed powder is obtained; the intercalation MoS2-SnO2 mixed powder and an explosion agent are mixed for explosion reaction, an explosion reaction product is taken out after being cooled to room temperature, and the layered MoS2-SnO2 nano composite material is obtained. The sulphophile characteristic of aromatic thioether is used, interlayer van der Waals' force of molybdenum disulfide raw material powder is reduced, and intercalation exfoliation is conducted on the molybdenum disulfide raw material powder in cooperation with explosion impact. The product prepared through the method is the layered molybdenum disulfide and SnO2 nano-particle composite nano material with high carrier mobility, SnO2 nano-particles are evenly attached to a single-layer molybdenum sulfide lamella, catalytic hydrogenation and lubricating performance of the single-layer molybdenum sulfide lamella are improved, and the application range of molybdenum sulfide is greatly enlarged.

Description

technical field [0001] The invention belongs to the technical field of metal molybdenum, relates to molybdenum disulfide composite materials, and in particular to a layered MoS 2 -SnO 2 Preparation methods of nanocomposites. Background technique [0002] Graphene-like MoS2 composed of single or few layers of MoS 2 ) is a new type of two-dimensional (2D) layered compound with graphene-like structure and properties. In recent years, it has become an emerging research hotspot due to its unique physical and chemical properties. Graphene-like molybdenum disulfide is a two-dimensional crystal material with a "sandwich sandwich" layered structure composed of a hexagonal single-layer or multi-layer molybdenum disulfide. The single-layer molybdenum disulfide is composed of three atomic layers. The layer is a molybdenum atomic layer, and the upper and lower layers are sulfur atomic layers. The molybdenum atomic layer is sandwiched by two sulfur atomic layers to form a "sandwich" st...

Claims

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Application Information

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IPC IPC(8): B01J27/051B01J37/12B01J37/00C10M125/00C10M125/22B82Y40/00
CPCC10M125/00C10M125/22B82Y40/00B01J27/051B01J37/00B01J37/12C10M2201/062C10M2201/066B01J35/40B01J35/39
Inventor 胡平王快社杨帆胡卜亮宋瑞陈震宇李秦伟戴晓庆
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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