MoS2atg-C3N4 core-shell nanospheres and preparation method thereof

A technology of g-c3n4 and nanospheres, applied in the direction of nitrogen and non-metallic compounds, molybdenum sulfide, etc., to achieve the effect of mild conditions and easy operation

Inactive Publication Date: 2018-09-25
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the three-dimensional MoS 2 Nanospheres and g-C 3 N 4...

Method used

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  • MoS2atg-C3N4 core-shell nanospheres and preparation method thereof
  • MoS2atg-C3N4 core-shell nanospheres and preparation method thereof
  • MoS2atg-C3N4 core-shell nanospheres and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] First prepare MoS 2 Nanospheres, take 0.3g of Na 2 MoO 4 2H 2 O, 0.76g of thiourea and 0.8g of PVP were completely dissolved in 80mL of deionized water, sealed in a 100mL polytetrafluoroethylene reactor, and hydrothermally reacted at 200°C for 12h. Centrifuge and wash with deionized water and absolute ethanol three times respectively, and dry in a blast drying oven at 80°C for 6 hours to obtain sample materials for use. Take an appropriate amount of melamine and put it into a crucible, then put it into a muffle furnace and calcine at 550°C for 2 hours at a heating rate of 20°C / min to obtain g-C 3 N 4 powder. Take 5mg of g-C 3 N 4 The powder is placed in 20ml of methanol and placed in a digitally controlled ultrasonic cleaner for 60 minutes until g-C 3 N 4 The powder is completely and uniformly dispersed in methanol solution. Take another 45mg of MoS 2 Magnetically stir in 10 ml of methanol until completely dissolved in methanol. Mix and disperse the two and ...

Embodiment 2

[0024]According to the hydrothermal reaction in the present invention in Example 1, the amount of thiourea was reduced to 0.19g, and the amount of other raw materials and experimental steps remained unchanged to obtain MoS 2 @g-C 3 N 4 Core-shell nanospheres.

Embodiment 3

[0026] According to the hydrothermal reaction in the present invention in Example 1, the amount of thiourea was reduced to 0.38g, and the amount of other raw materials and the experimental steps remained unchanged to obtain MoS 2 @g-C 3 N 4 Core-shell nanospheres.

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Abstract

The invention provides MoS2atg-C3N4 core-shell nanospheres and a preparation method thereof, and belongs to the technical field of preparation of a catalytic material and a nano material. Firstly, mixed solution is prepared by using sodium molybdate dihydrate, urea and PVP (Polyvinyl Pyrrolidone) as raw materials, and by a hydrothermal reaction, MoS2 nanospheres are obtained; then MoS2 and g-C3N4are subjected to ultrasonic dispersion, an electrostatic adsorption method is adopted, and thus the MoS2atg-C3N4 core-shell nanospheres are obtained. A material consists of the MoS2atg-C3N4 core-shellnanospheres which are uniform in size; the diameter of the core-shell nanospheres is about 240 to 260nm. According to the invention, the used raw materials are cheap and easy to obtain; the preparation method is simple and easy to operate, mild in conditions and low in equipment requirements, and environmentally friendly. The prepared MoS2atg-C3N4 core-shell nanospheres can be used for the fieldsof light, electricity, energy storage, catalysis and the like.

Description

technical field [0001] The present invention relates to a kind of MoS 2 @g-C 3 N 4 The core-shell nanosphere and its preparation method belong to the technical field of catalytic materials and nano-material preparation, and in particular relate to MoS with a core-shell structure 2 @g-C 3 N 4 The method of preparation of the material. Background technique [0002] Nano-assembly technology is an important method for preparing new multifunctional materials. The core-shell composite material combines the advantages of two or more materials, and can change the physical properties and photoelectrochemical properties of the material by changing the core-shell structure. It has been applied to the fields of semiconductor materials, drug delivery and biotechnology, and has potential application value, so it has received widespread attention. Since transition metal sulfides have a crystal structure similar to graphene, they have become a research hotspot. where MoS 2 It is con...

Claims

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Application Information

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IPC IPC(8): C01G39/06C01B21/082
Inventor 李新勇王新
Owner DALIAN UNIV OF TECH
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