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Method for preparing cubic zirconium phosphate silver-carrying antimicrobial powder

A technology of zirconium phosphate loaded with silver and cubes, which can be used in botany equipment and methods, fungicides, chemicals for biological control, etc. It can solve the problems of affecting the application, easy discoloration of silver-based antibacterial agents, etc., and improve the utilization rate , large selection of equipment, and the effect of saving production costs

Active Publication Date: 2012-11-07
晋大纳米科技(厦门)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the active chemical properties of silver, silver-based antibacterial agents are easy to change color under the irradiation of ultraviolet light, which seriously affects its application.

Method used

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  • Method for preparing cubic zirconium phosphate silver-carrying antimicrobial powder
  • Method for preparing cubic zirconium phosphate silver-carrying antimicrobial powder
  • Method for preparing cubic zirconium phosphate silver-carrying antimicrobial powder

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preparation example Construction

[0021] The preparation method of cubic zirconium phosphate silver-loaded antibacterial agent of the present invention is divided into following three steps altogether:

[0022] Synthesis of 1 cubic zirconium phosphate support

[0023] Cubic zirconium phosphate carrier color atmospheric pressure hydrothermal synthesis method. The raw materials for the production of cubic zirconium phosphate carrier are zirconium oxychloride, sodium dihydrogen phosphate and sodium oxalate. Sodium oxalate was used as a template to control the structure and morphology of the carrier.

Embodiment 1

[0025] 180kg of zirconium oxychloride was dissolved in 1 ton of water, 100kg of sodium dihydrogen phosphate was dissolved in 0.5 ton of water, 68kg of sodium oxalate was dissolved in 0.5 ton of water, fully dissolved and added to the same reaction kettle at the same time, under normal pressure, the temperature was controlled at 90 Cubic zirconium phosphate slurry was obtained after the reaction time was controlled at 28 hours. The molar yield of zirconium salt was 83.5%.

Embodiment 2

[0027] 180kg of zirconium oxychloride was dissolved in 1 ton of water, 114kg of sodium dihydrogen phosphate was dissolved in 0.5 ton of water, 68kg of sodium oxalate was dissolved in 0.5 ton of water, fully dissolved and added to the same reaction kettle at the same time, under normal pressure, the temperature was controlled at 90 Cubic zirconium phosphate slurry was obtained after the reaction time was controlled at 28 hours. The molar yield of zirconium salt was 91.2%.

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Abstract

The invention relates to a method for preparing a zirconium phosphate silver-carrying antimicrobial powder, particularly a cubic zirconium phosphate silver containing antimicrobial powder. The cubic zirconium phosphate silver-carrying antimicrobial powder is in the microstructure of a cube, the silver is carried by the cube, and the side of the cube has a length of 400-1,000nm. The method comprises the following steps: preparing a cubic zirconium phosphate carrier, mixing the cubic zirconium phosphate carrier with the aqueous solution of zinc nitrate, stirring to generate a zinc-carrying intermediate; preparing the zinc-carrying intermediate into an aqueous dispersion solution, adding the silver nitrate solution so that the carrier contains 1.5-3.5% of silver ions, stirring, washing, filtering, drying and forging to obtain the final product. The carrier is prepared by adopting the atmospheric-pressure hydrothermal synthesis method, and the hydrofluoric acid used as the template agent in the old process is replaced by the sodium oxalate. The process is simple and convenient to operate, and the equipment has high selectivity. The product and the product producing process are truly safe and nontoxic, the enamel equipment can be used as the production equipment, and the production cost can be saved.

Description

technical field [0001] The invention relates to a zirconium phosphate-loaded silver antibacterial agent, in particular to a preparation method of a cubic zirconium phosphate-loaded silver antibacterial powder. Background technique [0002] Silver ion antibacterial originated in ancient China, and gradually improved and developed along with the progress of human civilization. Now it has become an important part of improving the quality of human life, and it is also a research hotspot of scientists from all over the world. Silver-based inorganic antibacterial agents are the most important and important type of inorganic antibacterial materials. [0003] Inorganic silver-based antibacterial powder can be divided into silicate-based (including zeolite, tober mullite, silica gel glass, bentonite, etc.), phosphate-based (including zirconium phosphate, calcium phosphate, etc.), oxide-based (including TiO 2 , ZrO 2 、Al 2 o 3 etc.) and others (such as activated carbon, carbon f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16A01N25/08A01P1/00A01P3/00
Inventor 吴继贤周路吴永鑫康朝晖杨振威
Owner 晋大纳米科技(厦门)有限公司
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