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Method for preparing silver-loaded titanium oxide-zirconium phosphate composite nanometer material

A composite nanomaterial, zirconium phosphate technology, applied in the direction of titanium dioxide, chemical instruments and methods, botanical equipment and methods, etc., can solve the problems of low stability and easy discoloration of titanium dioxide nanomaterials

Inactive Publication Date: 2013-04-03
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this silver-loaded titanium dioxide nanomaterial is not stable and is prone to discoloration

Method used

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  • Method for preparing silver-loaded titanium oxide-zirconium phosphate composite nanometer material
  • Method for preparing silver-loaded titanium oxide-zirconium phosphate composite nanometer material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 5 ml of isopropyl titanate to 50 ml of absolute ethanol, stir evenly, then add 3 ml of phosphoric acid, and adjust the pH to 2 with ammonia water. Then, under the condition of avoiding light, add 0.02 g of silver nitrate and stir to dissolve. Then, 5 milliliters of deionized water dissolved with 0.8 grams of zirconium oxychloride octahydrate was added dropwise to the former solution, and continued to stir in the dark for 5 hours. After the end, the precipitated product is washed with deionized water until the pH of the washing solution is neutral, and then dried. Calcining the dried powder material at 500° C. for 4 hours to obtain the target silver-loaded titanium oxide zirconium phosphate composite nanomaterial.

[0022] The obtained silver-loaded titanium oxide zirconium phosphate composite nano material is an aggregation state formed by stacking nano particles. The particle size of the titanium oxide zirconium phosphate composite nanoparticles is about 5-8 nano...

Embodiment 2

[0024] Add 10 ml of n-tetrabutyl titanate into 100 ml of absolute ethanol, stir evenly, then add 5 ml of phosphoric acid, and adjust the pH to 3 with ammonia water. Then, under the condition of avoiding light, add 0.08 g of silver nitrate and stir to dissolve. Then, 10 milliliters of deionized water dissolved with 1.2 grams of zirconium nitrate pentahydrate was added dropwise to the former solution, and continued to stir in the dark for 6 hours. After the end, the precipitated product is washed with deionized water until the pH of the washing solution is neutral, and then dried. Calcining the dried powder material at 600° C. for 3 hours to obtain the target silver-loaded titanium oxide zirconium phosphate composite nanomaterial.

[0025] The obtained silver-loaded titanium oxide zirconium phosphate composite nano material is an aggregation state formed by stacking nano particles. The particle size of the titanium oxide zirconium phosphate composite nanoparticles is about 6-9...

Embodiment 3

[0027] Add 15 ml of tetraethyl titanate to 200 ml of absolute ethanol, stir evenly, then add 10 ml of phosphoric acid, and adjust the pH to 4 with ammonia water. Then, under the condition of avoiding light, add 0.1 g of silver nitrate and stir to dissolve. Then, 15 milliliters of deionized water dissolved with 1.8 grams of zirconium carbonate was added dropwise to the former solution, and continued to stir in the dark for 8 hours. After the end, the precipitated product is washed with deionized water until the pH of the washing solution is neutral, and then dried. Calcining the dried powder material at 1000° C. for 2 hours to obtain the target silver-loaded titanium oxide zirconium phosphate composite nanomaterial.

[0028] The obtained silver-loaded titanium oxide zirconium phosphate composite nano material is an aggregation state formed by stacking nano particles. The particle size of the titanium oxide zirconium phosphate composite nanoparticles is about 9-12 nanometers. ...

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Abstract

The invention discloses a method for preparing a silver-loaded titanium oxide-zirconium phosphate composite nanometer material. The method comprises the steps of: firstly, adding a liquid titanium source into absolute ethyl alcohol to be dispersed uniformly; adding phosphoric acid, and regulating pH using ammonia water; adding silver nitrate under a light-proof condition; adding an aqueous solution of zirconium salt after the silver nitrate is dissolved by stirring; stirring the resulting solution under the light-proof condition for 2-8 hours; washing and drying a sediment product after the stirring operation under the light-proof condition is ended; and roasting the sediment product at the temperature of 500-1200 DEG C to obtain the target product silver-loaded titanium oxide-zirconium phosphate composite nanometer material. The preparation method is simple and convenient in process and flow, wide in parameter adjustable range, strong in repeatability, low in cost, conductive to large-scale production, and has good business prospect.

Description

technical field [0001] The invention relates to a preparation method of a titanium oxide zirconium phosphate composite nano material, in particular to a preparation method of a silver-loaded titanium oxide zirconium phosphate composite nano material, which belongs to the technical field of inorganic nano material preparation. Background technique [0002] Silver-based bactericidal disinfectant can kill more than 650 kinds of Gram-positive bacteria, Gram-negative bacteria, fungi, molds, etc. in contact with it without producing drug resistance, and its bactericidal and antibacterial effect is much higher than that of chlorine-containing ones , silver series, quaternary ammonium salts, polymers, guanidine and other bactericidal disinfectants. However, the current silver-based antibacterial nanopowder still has some disadvantages in practical application, such as the release rate of the active ingredient silver ions is too fast, which cannot guarantee the durability of its effi...

Claims

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Application Information

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IPC IPC(8): C01G23/053C01B25/37C23C18/42A01N59/16A01P1/00A01P3/00
Inventor 赵斌陈超林琳曾琦琪何丹农
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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