Method for preparing zinc molybdate ultrafine anti-bacterial powder by adopting molten-salt growth method

A technology of antibacterial powder and zinc molybdate, applied in botany equipment and methods, chemicals for biological control, chemical instruments and methods, etc., can solve the problems of discoloration of antibacterial materials and high cost of silver-based antibacterial agents, and achieve improvement Antibacterial performance, high cost solution, and optimized synthesis conditions

Inactive Publication Date: 2010-11-24
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] 1. By preparing zinc molybdate antibacterial white powder with excellent antibacterial performance, the

Method used

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  • Method for preparing zinc molybdate ultrafine anti-bacterial powder by adopting molten-salt growth method
  • Method for preparing zinc molybdate ultrafine anti-bacterial powder by adopting molten-salt growth method
  • Method for preparing zinc molybdate ultrafine anti-bacterial powder by adopting molten-salt growth method

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Experimental program
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Embodiment 1

[0018] According to the molar ratio of sodium molybdate, zinc nitrate, and sodium nitrate being 1:1:8, a total of 10-20 g of the three materials were weighed and placed in a mortar, and 1-2 mL of absolute ethanol was added to grind for 2 hours to make the raw materials sodium molybdate, Zinc nitrate and salt sodium nitrate are fully mixed evenly. Then, put the mixture into a crucible, dry it at 90°C for 2-4 hours, and put it into an electric furnace for calcination at 320-360°C for 3 hours. Fully soak and wash the calcined solidified product with distilled water, then filter and dry to remove the remaining molten salt to obtain white ultrafine zinc molybdate antibacterial powder.

Embodiment 2

[0020] According to the reactant raw material sodium molybdate, zinc nitrate and salt material sodium nitrate molar ratio is 1:1:18, weigh the three materials in total 10 ~ 30g and put them in the mortar, and add an appropriate amount of absolute ethanol to grind for 1h to make the reactant The raw materials and salt are fully mixed evenly. Then, the mixture was put into a crucible, dried at 90° C. for 2 hours, and then calcined in an electric furnace at 320° C. for 3 hours. The solidified product obtained after calcination is fully soaked and washed with distilled water, then filtered and dried to remove the remaining molten salt, and the obtained zinc molybdate has a more uniform particle size, good dispersibility, and a spherical shape. The particle size is about 2 μm.

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Abstract

The invention relates to a method for preparing zinc molybdate ultrafine anti-bacterial powder by adopting a molten-salt growth method. The method comprises the following steps that: sodium molybdate and zinc nitrate serving as raw materials and sodium nitrate serving as a salt material are mixed in a mortar in the proportion of 1:1:8-18; a proper amount of absolute alcohol is added in the mortar to grind for 1 to 2 hours to ensure that the raw materials and the salt material are mixed sufficiently and uniformly; the mixture is dried for 2 to 4 hours at 90 DEG C in a crucible, and is melted and calcined for 3 to 7 hours in an electric furnace at the temperature of between 320 and 360 DEG C; and the calcined curing product is sufficiently soaked and washed with distilled water, is filtered and dried to remove residual fused salt to obtain the ultrafine zinc molybdate powder. Researches prove that the ultrafine zinc molybdate anti-bacterial powder prepared by the molten-salt growth method has bacteria resistance superior to the anti-bacterial powder synthesized by a chemical precipitation method under the same testing condition, and avoids the problems of high cost and color change by using a silver antibacterial agent. The method can be widely applied in the fields of plastics, ceramics, paints and the like.

Description

Technical field: [0001] The invention relates to powder preparation technology, in particular to a method for preparing superfine zinc molybdate antibacterial powder by adopting a molten salt method. Background technique: [0002] Among the metal ion antibacterial materials, considering factors such as safety, usability, and antibacterial effect, the most widely used antibacterial metal ions at home and abroad are mainly silver, zinc and copper ions. Because copper ions have a darker color, there are not many in-depth studies on the antibacterial properties of zinc ions. Therefore, the research on silver-loaded antibacterial agents is the most systematic and in-depth among metal ion antibacterial agents. The main varieties are molecular sieve-loaded silver, glass-loaded Silver, silver on fluorspar, silver on aluminosilicate, silver on phosphate, etc. However, the high cost of silver-loaded antibacterial agents and the discoloration of antibacterial materials have always bee...

Claims

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Application Information

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IPC IPC(8): C01G39/00A01N59/16A01P1/00
Inventor 王黔平吴卫华赵莎黄转红李亚君郭相雄张家生刘淑贤
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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