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Preparation method of MoS2 / Ag2S nano-composite photocatalytic material

A photocatalytic material and nanocomposite technology, which is applied in the field of preparation of MoS2/Ag2S nanocomposite photocatalytic materials, can solve the problems of low utilization rate of sunlight and achieve simple and easy preparation method, high yield and good dispersibility Effect

Inactive Publication Date: 2015-01-28
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at the problem of low utilization rate of sunlight by most photocatalytic materials at present, and proposes a kind of MoS 2 / Ag 2 The preparation method of S nanometer photocatalytic material, the method is simple and easy, and the dispersibility is good

Method used

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  • Preparation method of MoS2 / Ag2S nano-composite photocatalytic material
  • Preparation method of MoS2 / Ag2S nano-composite photocatalytic material

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Effect test

Embodiment 1

[0023] (1) Dissolve 0.160 g of molybdenum disulfide in 40 mL of water. After ultrasonic dispersion and dissolution, add 0.2 g of polyvinylpyrrolidone and stir rapidly under the action of a magnetic stirrer to obtain a black molybdenum disulfide aqueous solution.

[0024] (2) Dissolve 0.170 g of silver nitrate in 20 mL of water, slowly add dropwise to molybdenum disulfide aqueous solution, stir at room temperature for 2 h, transfer to a stainless steel reactor lined with polytetrafluoroethylene, and keep at 180 °C 24 h; then centrifuged to collect the product, washed with deionized water, absolute ethanol, and dried in vacuum to obtain nano-MoS 2 / Ag 2 S.

[0025] figure 1 is the MoS prepared in Example 1 2 / Ag 2 XRD pattern of S nanophotocatalytic material, it can be seen from the figure that the nanomaterial is MoS 2 / Ag 2 S composite material, no other substances are present; figure 2 is the MoS prepared in Example 1 2 / Ag 2 Scanning electron microscope image of S ...

Embodiment 2

[0027] (1) Dissolve 0.160 g of molybdenum disulfide in 40 mL of water. After ultrasonic dispersion and dissolution, add 0.2 g of polyvinylpyrrolidone and stir rapidly under the action of a magnetic stirrer to obtain a black molybdenum disulfide aqueous solution.

[0028] (2) Dissolve 0.2265g of silver nitrate in 20 mL of water, slowly add dropwise to the molybdenum disulfide aqueous solution, stir at room temperature for 2 h, transfer to a stainless steel reactor lined with polytetrafluoroethylene, and keep at 180°C 24 h; then centrifuged to collect the product, washed with deionized water, absolute ethanol, and dried in vacuum to obtain nano-MoS 2 / Ag 2 S.

[0029] image 3 is the MoS prepared in Example 2 2 / Ag 2 Scanning electron microscope image of S nano photocatalytic material, from which it can be seen that MoS 2 Showing a flower-like structure, Ag 2 S presents a petal rod shape with small granular block structure.

Embodiment 3

[0031] (1) Dissolve 0.160 g of molybdenum disulfide in 40 mL of water. After ultrasonic dispersion and dissolution, add 0.2 g of polyvinylpyrrolidone and stir rapidly under the action of a magnetic stirrer to obtain a black molybdenum disulfide aqueous solution.

[0032] (2) Dissolve 0.2912 g of silver nitrate in 20 mL of water, slowly add it dropwise to the molybdenum disulfide aqueous solution, stir at room temperature for 2 h, transfer to a stainless steel reactor lined with polytetrafluoroethylene, and keep at 180 °C 24 h; then centrifuged to collect the product, washed with deionized water, absolute ethanol, and dried in vacuum to obtain nano-MoS 2 / Ag 2 S.

[0033] Nano-MoS prepared in Example 3 2 / Ag 2 The scanning electron microscope image of the S nanometer photocatalytic material is similar to that of Example 2.

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Abstract

The invention discloses a preparation method of a MoS2 / Ag2S nano-composite photocatalytic material. Molybdenum disulphide, silver nitrate (AgNO3) and polyvinylpyrrolidone (PVP) as raw materials are prepared into a MoS2 / Ag2S nano photocatalytic material by a liquid phase precipitation method. The preparation method of the MoS2 / Ag2S composite photocatalytic material provided by the invention has the advantages of simple operation, high yield, and good reproducibility and dispersion. The nano material as a photocatalyst has excellent catalytic properties.

Description

technical field [0001] The present invention relates to the preparation of photocatalytic materials, specifically, a kind of MoS 2 / Ag 2 A preparation method of S nanocomposite photocatalytic material. Background technique [0002] In recent years, photocatalytic technology, as a new technology using new composite nanomaterials to control environmental pollution, has important application prospects in the fields of energy and environment, and has been widely used in the treatment of environmental pollution at home and abroad; The simple operation method, wide range of use, and good photocatalytic degradation performance have become research hotspots in the field of photocatalysis; among them, semiconductor silver sulfide nanoparticles have attracted much attention due to their special electrical, magnetic, optical, and catalytic properties. Pay attention to. [0003] In addition, transition metal layered binary compounds (MX2) have broad application prospects due to their...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/051C02F1/30
Inventor 张杜唐华王瑜琦苌树方
Owner JIANGSU UNIV
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