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a layered mos 2 -fe 3 o 4 Preparation methods of nanocomposites

A nano-composite material, mos2-fe3o4 technology, applied in the field of metal molybdenum, can solve the problems of poor particle performance of granular composite materials, complex preparation process of composite materials, unsuitable for industrial production, etc. Simple to use effects

Active Publication Date: 2017-06-13
JINDUICHENG MOLYBDENUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Based on the problems existing in the prior art, the present invention proposes a layered MoS 2 -Fe 3 o 4 Nanocomposite material and its preparation method to obtain layered MoS with nanoscale and superior performance 2 -Fe 3 o 4 Nanocomposites to address existing MoS 2 -Fe 3 o 4 The preparation process of composite materials is complicated, energy consumption is high, it is not suitable for industrial production, and the technical problems of poor performance of granular composite materials in terms of adsorption and photocatalysis

Method used

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  • a layered mos <sub>2</sub> -fe <sub>3</sub> o <sub>4</sub> Preparation methods of nanocomposites
  • a layered mos <sub>2</sub> -fe <sub>3</sub> o <sub>4</sub> Preparation methods of nanocomposites
  • a layered mos <sub>2</sub> -fe <sub>3</sub> o <sub>4</sub> Preparation methods of nanocomposites

Examples

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Effect test

Embodiment 1

[0037] This example gives a layered MoS 2 -Fe 3 o 4 A method for preparing a nanocomposite material, the method specifically comprising the following steps:

[0038] Step 1: Take 10g of molybdenum disulfide powder and grind it to a 200-mesh sieve, 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, filter and remove the filter cake Dry, grind to 200 mesh and sieve to obtain 3g layered molybdenum disulfide powder.

[0039] Step 2, get 100g Fe(NO 3 ) 3 9H 2 O was mixed with 80g of citric acid and added to 100g of distilled water, and ammonia water was added to adjust the pH value to 6.5. After stirring and chelating at 45°C for 8h, a yellow sol was obtained, and the sol was dried at 100°C for 6h to obtain a xerogel, and Grind to 200 mesh and sieve to obtain xerogel powder;

[0040] Step 3: Mix the obtained 3g of layered molybdenum disulfide powder with 1.5g of xeroge...

Embodiment 2

[0046] This example gives a layered MoS 2 -Fe 3 o 4 A method for preparing a nanocomposite material, the method specifically comprising the following steps:

[0047] Step 1: Take 10g of molybdenum disulfide powder and grind it to a 200-mesh sieve, add it to an ethanol solution with a mass concentration of 20% and containing 200g of polyphenylene sulfide, heat it in a water bath to 70°C and stir for 5h, filter and remove the filter cake Dry, grind to 200 mesh and sieve to obtain 3.2g layered molybdenum disulfide powder.

[0048] Step 2, get 100g Fe(NO 3 ) 3 9H 2 O was mixed with 100g of citric acid and added to 150g of distilled water, and ammonia water was added to adjust the pH value to 7. After stirring and chelating at 50°C for 7h, a yellow sol was obtained, and the sol was dried at 105°C for 7h to obtain a xerogel. Grind to 200 mesh and sieve to obtain xerogel powder;

[0049] Step 3: Mix the obtained 3.2g layered molybdenum disulfide powder with 3.2g xerogel powder...

Embodiment 3

[0052] This example gives a layered MoS 2 -Fe 3 o 4 A method for preparing a nanocomposite material, the method specifically comprising the following steps:

[0053] Step 1: Take 10g of molybdenum disulfide powder and grind it to 200 mesh sieve, add it to an ethanol solution with a mass concentration of 30% and containing 300g of polyphenylene sulfide, heat it in a water bath to 40°C and stir for 8h, filter and remove the filter cake Dry, grind to 200 mesh and sieve to obtain 2.8g layered molybdenum disulfide powder.

[0054] Step 2, get 100g Fe(NO 3 ) 3 9H 2 O was mixed with 120g of citric acid and added to 200g of distilled water, and ammonia water was added to adjust the pH value to 7.5. After stirring and chelating at 60°C for 6h, a yellow sol was obtained, and the sol was dried at 110°C for 9h to obtain a xerogel, and the Grind to 200 mesh and sieve to obtain xerogel powder;

[0055] Step 3: Mix the obtained 2.8g layered molybdenum disulfide powder with 4.5g xeroge...

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Abstract

The invention provides a preparation method of a layered MoS2-Fe3O4 nanocomposite. The preparation method comprises the following steps: adding molybdenum disulfide powder to a layered solution for layered reaction, after the reaction, performing filtering after the reaction, and then performing drying so as to obtain layered molybdenum disulfide powder; mixing ferric nitrate with citric acid so as to obtain a mixture; adding the mixture into water, and performing a chelation reaction, so as to obtain xerogel; performing grinding so as to obtain xerogel powder; adding the xerogel powder and a blasting agent to the layered molybdenum disulfide powder, performing an explosive reaction, performing cooling to room temperature, and taking out explosive reaction products, so as to obtain the layered MoS2-Fe3O4 nanocomposite. According to the preparation method disclosed by the invention, the chalcophile characteristic of aromatic thioether is utilized, so that the layer-and-layer van der waals force of the molybdenum disulfide (raw material) powder is reduced; explosion shock is combined, so that layered stripping is successfully performed. According to the preparation method disclosed by the invention, a sol-gel coagulation method is combined with explosive high-temperature impact, and rapid reduction of Fe3O4 and stripping of MoS2 are completed in one step, so that the layered MoS2 / Fe3O4 nanocomposite is successfully prepared.

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 -Fe 3 o 4 Preparation methods of nanocomposites. Background technique [0002] Graphene-like MoS2 composed of single or few layers of MoS2 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 "sandwic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/08
CPCC01G49/08C01P2002/82C01P2004/04
Inventor 曹维成王快社胡平刘东新杨帆安耿卜春阳厉学武唐丽霞何凯刘仁智
Owner JINDUICHENG MOLYBDENUM CO LTD
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