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Method for reducing preparation of graphene-like molybdenum disulfide from protein substance

A molybdenum disulfide, graphene technology, applied in the direction of molybdenum sulfide, nanotechnology, etc., can solve the problems such as complex preparation process and pollution of graphene-like molybdenum disulfide, and achieve the effects of large output, high preparation efficiency and simple operation.

Active Publication Date: 2017-05-10
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Based on the problems existing in the prior art, the present invention proposes a method for preparing graphene-like molybdenum disulfide by reduction of protein substances, and obtains graphene-like molybdenum disulfide with nanoscale and superior performance, which solves the existing problems The preparation process of graphene molybdenum disulfide is complicated, and there are technical problems in the preparation process such as pollution

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  • Method for reducing preparation of graphene-like molybdenum disulfide from protein substance
  • Method for reducing preparation of graphene-like molybdenum disulfide from protein substance
  • Method for reducing preparation of graphene-like molybdenum disulfide from protein substance

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Embodiment 1

[0041] The present embodiment provides a method for preparing graphene-like molybdenum disulfide by reduction of proteinaceous substances, the method comprising the following steps:

[0042] Step 1, the molybdenum disulfide powder is ground to 200 mesh and sieved, and 10 g of the molybdenum disulfide powder under the sieve is added to the intercalation solution. The composition of the intercalation solution is 20 g of potassium chlorate, 10 g of sodium nitrate, and a mass concentration of 98%. 230mL of concentrated sulfuric acid and 70mL of hydrogen peroxide with a mass concentration of 30%;

[0043] Heat in a water bath to 15°C for 2 hours, then stir at 30°C for 30 minutes to carry out intercalation reaction, then heat to 75°C and stir for 30 minutes to react, filter the solution obtained after the reaction and dry the filter cake, grind to 200 mesh sieve, The intercalated molybdenum disulfide powder was obtained.

[0044] Step 2: Take 0.5g of tyrosine and add it into 15g of...

Embodiment 2

[0049] The present embodiment provides a method for preparing graphene-like molybdenum disulfide by reduction of proteinaceous substances, the method comprising the following steps:

[0050] Step 1: Grind molybdenum disulfide powder to 200 mesh and sieve, take 10g of undersize molybdenum disulfide powder and add it to the intercalation solution. The composition of the intercalation solution is 40g of potassium chlorate, 5g of sodium nitrate, and a mass concentration of 98%. The concentrated sulfuric acid is 300mL and the hydrogen peroxide of mass concentration 30% is 60mL.

[0051] Heat in a water bath to 10°C for 2 hours, then stir at 10°C for 30 minutes to carry out intercalation reaction, then heat to 95°C and stir for 25 minutes to react, filter the solution obtained after the reaction and dry the filter cake, grind to 200 mesh sieve, The intercalated molybdenum disulfide powder was obtained.

[0052] Step 2: Take 1.1 g of tyrosine and add it to 12.5 g of deionized water....

Embodiment 3

[0056] The present embodiment provides a method for preparing graphene-like molybdenum disulfide by reduction of proteinaceous substances, the method comprising the following steps:

[0057] Step 1, grind molybdenum disulfide powder to 200 mesh and sieve, take 10g of molybdenum disulfide powder under the sieve and add it to the intercalation solution. The composition of the intercalation solution is 10g of potassium chlorate, 8g of sodium nitrate, and a mass concentration of 98%. The concentrated sulfuric acid is 400mL and the hydrogen peroxide of mass concentration 30% is 45mL.

[0058] Heated in a water bath to 30°C for 1 hour, then stirred at 45°C for 50 minutes for intercalation reaction, then heated to 98°C and stirred for 15 minutes, filtered the solution obtained after the reaction and dried the filter cake, ground to 200 mesh and sieved, The intercalated molybdenum disulfide powder was obtained.

[0059] Step 2: Take 1.1 g of tyrosine and add it to 25 g of deionized w...

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Abstract

The invention provides a method for reducing preparation of graphene-like molybdenum disulfide from a protein substance. The method comprises the following steps: adding molybdenum disulfide powder into an intercalation solution for intercalation reaction, and after the reaction is finished, performing filtering and drying to obtain intercalated molybdenum disulfide powder; mixing and uniformly stirring the intercalated molybdenum disulfide powder prepared by step 1, the protein substance and water, and performing drying and grinding to obtain precursor powder; performing reducing reaction on the precursor powder under protective gas, performing cooling after complete reaction, and extracting and grinding a reaction product to obtain the graphene-like molybdenum disulfide. According to the method, a protein organic carbon source and molybdenum disulfide are mixed to form a precursor, then the organic carbon source is intercalated between molybdenum disulfide powder layers to increase the distance between the layers and weaken the action of van der waals force between the molybdenum sulfide powder layers, and heating carbonization of the protein organic carbon source is combined to promote reduction and stripping of the molybdenum disulfide.

Description

technical field [0001] The invention belongs to the field of novel two-dimensional materials and relates to graphene-like molybdenum disulfide, in particular to a method for preparing graphene-like molybdenum disulfide by reduction of protein substances. Background technique [0002] Graphene-like MoS2 composed of few layers of MoS2 is a new two-dimensional (2D) layered compound with graphene-like structure and properties. In recent years, it has become a new 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 hexagonal multi-layer molybdenum disulfide. The single-layer molybdenum disulfide is composed of three atomic layers, and the middle layer is molybdenum The atomic layer, the upper and lower layers are sulfur atomic layers, the molybdenum atomic layer is sandwiched by two sulfur atomic layers to form a "sandwich sandwich" s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G39/06B82Y40/00
CPCC01G39/06C01P2002/20C01P2004/03C01P2002/82C01P2004/64
Inventor 胡平王快社陈震宇周宇航常恬杨帆胡卜亮李秦伟邓洁刘晓平
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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