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A method for preparing graphene-like molybdenum disulfide-bismuth molybdate composite material by reduction of sugar organic carbon

A technology of molybdenum disulfide and composite materials, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of complex preparation process, low photocatalytic activity and low efficiency, Achieve high preparation efficiency, large output, and good photocatalytic performance

Active Publication Date: 2018-12-07
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

Although this method has obtained the graphene-bismuth molybdate composite material with higher photocatalytic activity, the preparation process of this method is complicated and the efficiency is low, and the photocatalytic activity of the composite material obtained has not reached the required high efficiency, and it needs further research and development. Further explore other means to improve its photocatalytic activity

Method used

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  • A method for preparing graphene-like molybdenum disulfide-bismuth molybdate composite material by reduction of sugar organic carbon
  • A method for preparing graphene-like molybdenum disulfide-bismuth molybdate composite material by reduction of sugar organic carbon
  • A method for preparing graphene-like molybdenum disulfide-bismuth molybdate composite material by reduction of sugar organic carbon

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Embodiment 1

[0036] The present embodiment provides a method for preparing graphene-like molybdenum disulfide-bismuth molybdate composite material by reduction of sugar organic carbon, the method may further comprise the steps:

[0037] 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%;

[0038] 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.

[0039] Step 2, dissolve 9....

Embodiment 2

[0045] The present embodiment provides a method for preparing graphene-like molybdenum disulfide-bismuth molybdate composite material by reduction of sugar organic carbon, the method may further comprise the steps:

[0046] 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.

[0047] 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.

[0048] Step 2: Dissolve 8.7g of bismuth nitra...

Embodiment 3

[0052] The present embodiment provides a method for preparing graphene-like molybdenum disulfide-bismuth molybdate composite material by reduction of sugar organic carbon, the method may further comprise the steps:

[0053] 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.

[0054] 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.

[0055] Step 2: Dissolve 20g of bismuth...

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Abstract

The invention provides a method for preparing a graphene-like molybdenum disulfide-bismuth molybdate composite material by reduction of sugar organic carbon. Molybdenum disulfide powder is added to an intercalation solution for intercalation reaction. After the reaction is completed, it is filtered and dried , to obtain intercalation molybdenum disulfide powder; dissolving bismuth nitrate and sodium molybdate in ethylene glycol under magnetic stirring, after stirring evenly, adding the intercalation molybdenum disulfide powder prepared in step 1 and carbohydrate organic carbon Stir evenly, dilute with water, then dry and grind to obtain the precursor powder; the precursor powder is subjected to a reduction reaction under a protective gas, cooled after the reaction is complete, and the reaction product is taken out. The present invention completes the exfoliation of molybdenum disulfide, the generation of bismuth molybdate and the composite reaction between the graphene-like molybdenum disulfide and bismuth molybdate in one step by preparing the precursor and finally reducing it uniformly.

Description

technical field [0001] The invention belongs to the field of novel two-dimensional materials, and relates to a graphene-like molybdenum disulfide composite material, in particular to a method for preparing a graphene-like molybdenum disulfide-bismuth molybdate composite material by reducing carbohydrate organic carbon. Background technique [0002] Graphene-like molybdenum disulfide composed of few layers of molybdenum disulfide 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. As an important class of two-dimensional layered nanomaterials, molybdenum disulfide is widely used in many fields such as lubricants, catalysis, energy storage, and composite materials due to its unique "sandwich sandwich" layered structure. Compared with the zero-energy bandgap of graphene, graphene-like molybdenum disulfide has an adj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/051
CPCB01J27/051B01J35/39
Inventor 胡平王快社陈震宇常恬邓洁杨帆胡卜亮李秦伟周宇航李奕霏
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY