Preparation of Ag2MoO4-CuMoO4 composite antibacterial powder by virtue of ultrasound co-precipitation and ultrasound-molten salt methods

A technology of ag2moo4-cumoo4, AM1-CM1, applied in the field of synthesizing Ag2MoO4-CuMoO4 composite antibacterial powder by ultrasonic-molten salt method

Inactive Publication Date: 2015-05-06
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low toxicity of molybdate, there are many studies on corrosion inhibitors on metal surfaces, but less research on molybdate as antibacterial materials. The research on the influence of ultrasonic waves on Ag2MoO4-CuMoO4 composite antibacterial powder is rarely reported at home and abroad.

Method used

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  • Preparation of Ag2MoO4-CuMoO4 composite antibacterial powder by virtue of ultrasound co-precipitation and ultrasound-molten salt methods
  • Preparation of Ag2MoO4-CuMoO4 composite antibacterial powder by virtue of ultrasound co-precipitation and ultrasound-molten salt methods
  • Preparation of Ag2MoO4-CuMoO4 composite antibacterial powder by virtue of ultrasound co-precipitation and ultrasound-molten salt methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of Ag2MoO4-CuMoO4 powder or AM1-CM1 by ultrasonic co-precipitation method:

[0028] The concentration of Ag is 0.3mol / L 2 (NO 3 ) 2 And Cu(NO 3 ) 2 The aqueous solution was slowly added dropwise to 0.3mol / L Na 2 MoO 4 In the aqueous solution, make Cu(NO 3 ) 2 With Ag 2 (NO 3 ) 2 The molar ratio is 1:1-4; a total of 80ml mixed solution is configured; react for 30 minutes under ultrasonic conditions, and the temperature is controlled at 30°C, so that the mixed solution is fully mixed and the chemical co-precipitation reaction is completed. After mixing, there is fluorescence in the mixed solution Yellow precipitate is formed; the mixed solution is separated by centrifugal separation and the remaining precipitate is filtered, and then the precipitate is washed with distilled water and absolute ethanol, and dried at a temperature of 80 ℃ for 12 hours to obtain fluorescent green Ag2MoO4-CuMoO4 antibacterial powder, namely AM1-CM1.

Embodiment 2

[0030] Preparation of Ag by Ultrasonic-Molten Salt Method 2 MoO 4 -CuMoO 4 The powder is AM2-CM2:

[0031] Mix AM1-CM1 with composite molten salt (the mass ratio of NaNO3 to LiNO3 is 1:1, etc.) at a mass ratio of 1:3-14, and add an appropriate amount of absolute ethanol to grind for 1-3h in a mortar to make AM1-CM1 Mix well with molten salt as the reaction medium. The mixture was put into a crucible, dried at 90°C for 3 hours, put into an electric furnace, calcined at 340°C, and kept for 4 hours. After cooling, a solidified product was obtained. Fully soak and wash the solidified product with distilled water, then centrifuge and wash with distilled water to remove the remaining molten salt, and after drying, the earthy brown Ag can be obtained 2 MoO 4 -CuMoO 4 Powder, namely AM2-CM2.

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Abstract

The invention relates to preparation of silver molybdate-copper molybdate composite antibacterial powder with good antibacterial property by virtue of ultrasound co-precipitation and ultrasound-molten salt methods and belongs to the technical field of preparation of powder. Molybdate is a functional material with a broad use, the optical, electrical, magnetic and catalytic performances of molybdate are considerably researched and reported and researches on composite molybdate as an antibacterial material are less. The preparation method of the silver molybdate-copper molybdate composite antibacterial powder comprises the following steps of preparing mixed solutions with different concentrations from Na2MoO4, Ag2(NO3)2 and Cu(NO3)2 as raw materials and preparing Ag2MoO4-CuMoO4 antibacterial powder which is synthesized at a low temperature and has good performance under ultrasonic conditions; and preparing silver molybdate-copper molybdate composite antibacterial powder which is stable at a high temperature from Ag2MoO4-CuMoO4 powder by using a mixture of sodium nitrate and lithium nitrate as composite molten salt under process conditions of the molten salt method. SEM image analysis of powder shows that Ag2MoO4-CuMoO4 antibacterial powder prepared by two methods is ultrafine micron particles. The silver molybdate-copper molybdate composite antibacterial powder can be widely used in such fields as antibacterial paper, antibacterial plastic and antimicrobial coatings.

Description

Technical field [0001] The invention belongs to a powder preparation technology, and relates to the use of ultrasonic chemical co-precipitation method and ultrasonic-melting salt method to synthesize Ag 2 MoO 4 -CuMoO 4 Two methods of compounding antibacterial powder. Background technique [0002] Molybdate is a kind of functional material with a wide range of uses, and there are a lot of research and reports in the aspects of optics, electricity, magnetism and catalytic performance. Due to its low toxicity, molybdate has been studied as a corrosion inhibitor for metal surfaces, while molybdate as an antibacterial material has been studied less. The effect of ultrasound on Ag2MoO4-CuMoO4 composite antibacterial powder is rarely reported at home and abroad. The invention adopts the ultrasonic chemical co-precipitation method and the ultrasonic-melted salt method to prepare silver molybdate-copper molybdate composite powder with good antibacterial properties. It not only uses silve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/20A01P1/00
Inventor 王黔平黄转红刘淑贤曹健丁艳晓吴卫华李亚君
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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