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Silicon-zinc mesoporous material silver-carrying antibacterial agent and preparation method thereof

A mesoporous material and zinc mesoporous technology, applied in the field of mesoporous silver-loaded antimicrobial materials and preparation, can solve the problem that the loading percentage of antibacterial substances is not particularly high, and achieve the effect of cost reduction and simple preparation process

Inactive Publication Date: 2010-06-23
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the loading percentage of antimicrobial substances is not particularly high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Dissolve 10.00 g of P123 in 323.3 mL of deionized deionized water (3%), add hydrochloric acid to make the pH of the solution lower than 2, stir until it settles, add 31.24 g of ethyl orthosilicate and 1.68 g of zinc chloride , stirred at 70°C for 72 hours, dried and calcined at 550°C for 6 hours to obtain a mesoporous material. (Silicon dioxide: Zinc oxide is 90:10).

[0020] 2) Take 5 g of the above-mentioned inorganic nano-mesoporous material and add it to 50 ml of deionized water, drop in 0.4 g of silver nitrate solution with a mass percentage of 20%, shake for 60 minutes, place for 6 hours, and dry; (the silver loading is 1% )

[0021] 3) Put the above-mentioned silver-loaded inorganic nano-mesoporous material into 100ml formaldehyde deionized water solution, the volume ratio of formaldehyde and deionized water is 10:100, react for 5 minutes, filter, wash, and dry to obtain the inorganic nano-mesoporous material. The silver mesoporous antibacterial agent, marke...

Embodiment 2

[0023] 1) Dissolve 15.00 grams of F104 in 2985 mL of deionized deionized water (0.5%), add sulfuric acid to make the pH of the solution lower than 2, stir until it settles, add 52.88 g of butyl orthosilicate and 2.33 g of zinc nitrate, and Stirring at 100°C for 60 hours, drying at 650°C for 6 hours to obtain a mesoporous material. (Silicon dioxide: Zinc oxide 99:1).

[0024] 2) Take 5 g of the inorganic nano-mesoporous material obtained above and add it to 50 ml of deionized water, drop in 4.37 g of silver nitrate solution with a mass percentage of 20%, shake for 50 minutes, place for 10 hours, and dry; (the silver loading is 10% )

[0025] 3) Put the above silver-loaded inorganic nano-mesoporous material into 100ml formaldehyde deionized water solution, the volume ratio of formaldehyde and deionized water is 5:100, react for 30 minutes, filter, wash, and dry to obtain the inorganic nano-mesoporous material. The silver mesoporous antibacterial agent, marked as sample B, was ...

Embodiment 3

[0027] 1) Dissolve 4 grams of F65 in 396 mL of deionized deionized water, add nitric acid to make the pH of the solution lower than 2, stir until it settles, add 24.10 g of methyl orthosilicate and 1.35 g of zinc acetate, and stir at 120°C 48 hours, after drying, calcined at 700°C for 6 hours to obtain mesoporous bioglass. (Silicon dioxide: Calcium oxide 95:5).

[0028] 2) Take 5 g of the inorganic nano-mesoporous material obtained above and add it to 50 ml of deionized water, drop in 2.07 g of silver nitrate solution with a mass percentage of 20%, shake for 30 minutes, place for 12 hours, and dry; (the silver loading is 5% )

[0029] 3) Put the above-mentioned silver-loaded inorganic nano-mesoporous material into 100ml formaldehyde deionized water solution, the volume ratio of formaldehyde and deionized water is 7:100, react for 20min, filter, wash, and dry to obtain inorganic silver-loaded The mesoporous antibacterial agent, marked as sample C, was finally used in the E. c...

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Abstract

The invention discloses a silicon-zinc mesoporous material silver-carrying antibacterial agent and a preparation method thereof. The preparation method comprises: stirring a polyethylene glycol-polypropylene glycol-poly(ethylene glycol) (PLA-PEG)block copolymer, deionized water and an acid, adding a silicon source and a zinc source to obtain sol-gel liquid, and sintering the sol-gel liquid to obtain the silicon-zinc mesoporous material; adding the obtained inorganic nano mesoporous material into deionized water or ethanol, adding solution of silver nitrate and drying the mesoporous material; and adding the silver-carrying mesoporous material into the deionized water solution of formaldehyde to perform a reaction, filtering the solution, and washing and drying the resulting product; or roasting the silver-carrying mesoporous material in a protective atmosphere to prepare the silver-carrying silicon-zinc mesoporous material antibacterial agent. The method is simple in preparation; as zinc oxide is also an antibacterial agent, the antibacterial active body mass content of the antibacterial agent is up to 20 percent which is far higher than that of other antibacterial agents; the antibacterial efficiency of the antibacterial agent is far better than the products of the same kinds; and the antibacterial agent can be widely used in the fields such as ceramics, plastics, textile, paint and water treatment.

Description

technical field [0001] The invention relates to a mesoporous silver-loaded antibacterial agent material and a preparation method, in particular to a silicon-zinc mesoporous silver-loaded antibacterial agent material and a preparation method technical background [0002] In recent years, due to the impact of "SARS", "bird flu" and "H1N1 influenza", people's awareness of hygiene has been continuously enhanced, and the demand for antibacterial materials and their products has greatly increased. In ordinary life, a large number of viruses, bacteria, fungi and other microorganisms in the environment not only pollute the environment, but also directly lead to the generation and infection of many diseases, posing a great threat to human health. [0003] Inorganic antibacterial agents are currently the most widely used antibacterial agents due to their stable performance, wide antibacterial spectrum, good weather resistance, and easy industrialization. Mainly use inorganic material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16A01N25/08A01P1/00
Inventor 冯新星陈建勇张华鹏朱海霖周岚
Owner ZHEJIANG SCI-TECH UNIV
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