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High-efficiency monatomic silver nanowire antibiotic material

A technology of silver nanowires and antibacterial materials, applied in high-efficiency single-atom silver nanowire antibacterial materials, preparation of antibacterial materials, and the above-mentioned fields of antibacterial materials, can solve the service life and economic problems of antibacterial agents, the failure of antibacterial properties, and the inability to adapt to sustainable development. Economic strategy and other issues, to achieve the effects of excellent economy, good antibacterial effect, and high-efficiency broad-spectrum antibacterial ability

Inactive Publication Date: 2011-04-20
唐幸福
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mechanism is due to the continuous consumption of Ag + , so the service life (durability) of the antibacterial agent depends on the silver content of the antibacterial material, and eventually the antibacterial performance will fail due to the depletion of silver.
So the exudation mechanism of Ag + Antimicrobial agents have problems in service life and economy, and cannot adapt to the economic strategy of sustainable development

Method used

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  • High-efficiency monatomic silver nanowire antibiotic material
  • High-efficiency monatomic silver nanowire antibiotic material
  • High-efficiency monatomic silver nanowire antibiotic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Hollandite-type manganese dioxide molecular sieves containing silver in the channels (Ag m (A) n [M x mn 8-x ]O 16 , A=K, M=Mn) preparation.

[0036] Manganese sulfate (MnSO 4 ) and potassium permanganate (KMnO 4 ) in a certain proportion into a 20L container, then under the condition of stirring and reflux at 100°C for 24h at a constant temperature, filter, wash, dry at 110°C for 12h, and roast at 500°C for 6h to obtain Hollandite manganese dioxide with a yield of 98.8%. The above-mentioned Hollandite type manganese dioxide molecular sieve is added to a certain amount of aqueous solution to form a suspension. Add a certain concentration (≤25wt.%) of ammonia water to the silver nitrate solution (AgNO 3 ) to form silver ammonia (Ag(NH 3 ) 2 + ) solution. Under vigorous stirring, a certain concentration (≤30wt.%) of hydrogen peroxide (H 2 o 2 ) and silver ammonia (Ag(NH 3 ) 2 + ) solution was added dropwise to the above-mentioned manganese dioxide molecular ...

Embodiment 2

[0040] Hollandite-type manganese dioxide molecular sieves (Ag m (K) n [Ti x mn 8-x ]O 16 preparation.

[0041] A certain proportion of manganese sulfate (MnSO 4 ), titanium sulfate (Ti(SO ) 4 ) 2 ) and potassium permanganate (KMnO 4 ) into a 20L container, then kept at 100°C for 24h under stirring and reflux conditions, filtered, washed, dried at 110°C for 12h, and roasted at 500°C for 6h to obtain Hollandite manganese dioxide with a yield of 98.6%. Add the Hollandite-type manganese dioxide molecular sieve doped with the above framework into a certain amount of aqueous solution to form a suspension. Add a certain concentration (≤25wt.%) of ammonia water to the silver nitrate solution (AgNO 3 ) to form silver ammonia (Ag(NH 3 ) 2 + ) solution. Under vigorous stirring, a certain concentration (≤30wt.%) of hydrogen peroxide (H 2 o 2 ) and silver ammonia (Ag(NH 3 ) 2 + ) solution at room temperature was added dropwise to the above-mentioned manganese dioxide mole...

Embodiment 3

[0045] Hollandite-type manganese dioxide molecular sieves (Ag m (K) n [Zn x mn 8-x ]O 16 preparation.

[0046] A certain proportion of manganese sulfate (MnSO 4 ), zinc nitrate (Zn(NO 3 ) 2 ) and potassium permanganate (KMnO 4 ) into a 20L container, then kept at 100°C for 24h, filtered, washed, dried at 110°C for 12h, and roasted at 500°C for 6h to obtain Hollandite manganese dioxide with a yield of >97.3%. Add the Hollandite-type manganese dioxide molecular sieve doped with the above framework into a certain amount of aqueous solution to form a suspension. Add a certain concentration (≤25wt.%) of ammonia water to the silver nitrate solution (AgNO 3 ) to form silver ammonia (Ag(NH 3 ) 2 + ) solution. Under vigorous stirring, a certain concentration (≤30wt.%) of hydrogen peroxide (H 2 o 2 ) and silver ammonia (Ag(NH 3 ) 2 + ) solution was added dropwise to the above-mentioned manganese dioxide molecular sieve suspension at the same time, aged for 12h, then fi...

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Abstract

The invention relates to a high-efficiency monatomic silver nanowire antibiotic material which is characterized in that the monatomic silver nanowire of the antibiotic material extends from the orifice of a framework-doped manganese dioxide molecular sieve into a hole. The manganese dioxide molecular sieve is characterized by being of a hollandite type crystal structure; and the hole contains the monatomic silver nanowire or / and A ions (A=K<+>, Na<+> or H<+>). The chemical general formula can be expressed as Agm(A)n[MxMn8-x]O16 (M=Mn<2+> / <3+>, Zn<2+> and Ti<4+>; A=K<+>, Na<+> or H<+>; m<=3; n<=2; and x<=2), [MxMn8-x]O16 represents the framework composition of the manganese dioxide molecular sieve, and Agm(A)n represents the hole composition of the manganese dioxide molecular sieve. By mainly using the sterilization mechanism of catalytic activated oxygen, silver of the monatomic silver nanowire antibiotic material is not consumed in the sterilization process. Based on the synergetic effect of the quantized monatomic silver nanowire and the hollandite type manganese dioxide molecular sieve, the antibiotic material has extremely high oxygen activation performance, thereby leading to long-acting, high-efficiency and stable broad-spectrum antibiotic capability and having no adverse side effect on a human body. Thus, the antibiotic material can be widely used for preparing various antibiotic products such as paint, plastic, rubber, textile and the like.

Description

technical field [0001] The invention is a high-efficiency single-atom silver nanowire antibacterial material, which relates to the fields of paint, plastics, rubber and other chemical and food industries, as well as the textile industry of fiber fabrics and the like. It is characterized in that the antibacterial material adopts the synergistic effect of quantized single-atom silver nanowires and hollandite type manganese dioxide molecular sieve, adopts the sterilization mechanism of catalytically activated oxygen, and does not consume silver during sterilization, so that the antibacterial material has extremely high activation performance for oxygen , leading to antibacterial agents with long-acting, high-efficiency and stable broad-spectrum antibacterial capabilities, and without any adverse side effects on the human body. [0002] The present invention also relates to the preparation method of the above-mentioned antibacterial material. [0003] The present invention also r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16A01P1/00B01J29/00B01J37/12B01J37/10
Inventor 唐幸福
Owner 唐幸福
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