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Silver oxide nano particle/molybdenum sulfide nanosheet heterostructure ultrasonic near infrared catalyst and preparation method thereof

A nanoparticle and heterostructure technology is applied in the field of silver oxide nanoparticle/molybdenum sulfide nanosheet heterostructure and its preparation, and achieves the effects of short reaction period, high efficiency and excellent near-infrared photocatalytic effect

Active Publication Date: 2017-07-21
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, the heterostructure formed by the composite of silver oxide nanoparticles and molybdenum sulfide nanosheets, and the use of silver oxide nanoparticles / molybdenum sulfide nanosheet heterostructures as photocatalysts and their application in ultrasonic-assisted synergistic near-infrared photocatalysis have not been studied. No report

Method used

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  • Silver oxide nano particle/molybdenum sulfide nanosheet heterostructure ultrasonic near infrared catalyst and preparation method thereof
  • Silver oxide nano particle/molybdenum sulfide nanosheet heterostructure ultrasonic near infrared catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] First, measure 0.5 mole of silver nitrate solution, weigh 1.0 mole of molybdenum sulfide nanosheets, add the silver nitrate solution and molybdenum sulfide nanosheets into deionized water and fully dissolve to prepare the first mixed solution. Then measure 0.25 moles of sodium hydroxide solution, drop the sodium hydroxide solution into the first mixed solution, then add the first mixed solution with sodium hydroxide solution dropwise for 0.5 hours by magnetic stirring, and prepare the second mixed solution liquid. Immediately after filtering the second mixed solution to obtain a precipitate, the obtained precipitate was washed with deionized water, and then the washed precipitate was vacuum-dried at 60° C. for 12 hours, and finally the prepared silver oxide nanoparticles were taken out / Molybdenum sulfide nanosheet heterostructure.

[0040] In the silver oxide nanoparticle / molybdenum sulfide nanosheet heterostructure prepared in Example 1 above, the silver oxide nanopa...

Embodiment 2

[0042] First, measure 1.0 mole of silver nitrate solution, weigh 1.0 mole of molybdenum sulfide nanosheets, add the silver nitrate solution and molybdenum sulfide nanosheets into deionized water and fully dissolve to prepare the first mixed solution. Then measure 0.5 mole of sodium hydroxide solution, drop the sodium hydroxide solution into the first mixed solution, and then add the first mixed solution with sodium hydroxide solution dropwise for 0.25 hours by magnetic stirring to prepare the second mixed solution liquid. Immediately after filtering the second mixed solution to obtain a precipitate, the obtained precipitate was washed with deionized water, and then the washed precipitate was vacuum-dried at 60° C. for 12 hours, and finally the prepared silver oxide nanoparticles were taken out / Molybdenum sulfide nanosheet heterostructure.

[0043] In the silver oxide nanoparticle / molybdenum sulfide nanosheet heterostructure prepared in Example 2 above, the silver oxide nanop...

Embodiment 3

[0045] First, measure 1.0 mole of silver nitrate solution, weigh 1.0 mole of molybdenum sulfide nanosheets, add the silver nitrate solution and molybdenum sulfide nanosheets into deionized water and fully dissolve to prepare the first mixed solution. Then measure 0.5 mole of sodium hydroxide solution, drop the sodium hydroxide solution into the first mixed solution, then add the first mixed solution with sodium hydroxide solution dropwise for 0.5 hours by magnetic stirring, and prepare the second mixed solution liquid. Immediately after filtering the second mixed solution to obtain a precipitate, the obtained precipitate was washed with deionized water, and then the washed precipitate was vacuum-dried at 60° C. for 12 hours, and finally the prepared silver oxide nanoparticles were taken out / Molybdenum sulfide nanosheet heterostructure.

[0046] The silver oxide nanoparticle / molybdenum sulfide nanosheet heterostructure obtained in the above-mentioned Example 3 is grown in liq...

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Abstract

The invention discloses a silver oxide nano particle / molybdenum sulfide nanosheet heterostructure ultrasonic near infrared catalyst and a preparation method thereof. The silver oxide nano particle / molybdenum sulfide nanosheet heterostructure ultrasonic near infrared catalyst and the preparation method thereof have the advantages that the prepared catalyst uses piezoelectric material molybdenum sulfide as the matrix, the surface of the matrix is loaded with silver oxide nano particles with high catalytic activity and a near infrared photocatalysis effect, the catalyst has the properties of the excellent infrared photocatalyst silver oxide nanoparticles and molybdenum sulfide nanosheets and the piezoelectric effect of the molybdenum sulfide nanosheets under ultrasonic action, carrier separation is benefited, and the generated carrier promotes the photocatalytic activity of the silver oxide; the silver oxide nano particle / molybdenum sulfide nanosheet heterostructure is prepared by the reaction of the hydrothermal precipitation method, and the preparation method is simple in synthesizing process and equipment, simple to operate, low in production cost, high in efficiency, short in reaction period, good in repeatability and promising in industrial application prospect.

Description

technical field [0001] The invention relates to the technical field of photocatalysts, in particular to a silver oxide nanoparticle / molybdenum sulfide nanosheet heterostructure with ultrasonic-assisted near-infrared photocatalytic effect caused by the piezoelectric effect and a preparation method thereof. Background technique [0002] Photocatalysis is a photochemical reaction in the presence of a catalyst, which is an organic combination of photochemistry and catalyst. Photocatalyst converts the light energy existing in nature into the energy required for chemical reactions, thereby generating free negative ions with strong oxidizing ability to achieve catalysis. It is an energy-saving, high-efficiency, green and environmentally friendly new technology developed in recent years. However, its development as a new functional material also faces many limitations, such as low catalytic efficiency, catalyst deactivation, secondary pollution, and low utilization of sunlight. Bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/051B82Y30/00B82Y40/00C02F1/30C02F101/38C02F101/34
CPCB82Y30/00B82Y40/00C02F1/30B01J27/051C02F2305/10C02F2101/40C02F2101/38C02F2101/34B01J35/39B01J35/40
Inventor 田健李昱杰赵行王苏媚崔洪芝
Owner SHANDONG UNIV OF SCI & TECH
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