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Silicon-zinc nano mesoporous inorganic antibacterial and preparation method thereof

An inorganic antibacterial agent and nano-mesoporous technology, applied in the field of nano-mesoporous inorganic antibacterial agent and its preparation, can solve the problems of reduced antibacterial activity, small loading, discoloration, etc., and achieve stable antibacterial performance, long-lasting antibacterial effect, and easy industrialization The effect of chemical production

Inactive Publication Date: 2010-06-16
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the 1990s, Japan developed a silver ion antibacterial agent with zeolite as a carrier and put it on the market, but silver ions or silver simple substances often change color, thereby reducing its antibacterial activity and limiting its application. Short and other characteristics, small loading capacity, and silver ions or simple substances are easy to migrate to the surface and change color

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Dissolve 5.00 g of P123 in 161.7 mL of deionized water, add hydrochloric acid to make the pH of the solution lower than 2, stir until it settles, add 14.75 g of tetraethyl orthosilicate, 0.84 g of zinc chloride and 0.76 g of copper nitrate, and Stirring at 70°C for 72 hours, drying, and calcining at 550°C for 6 hours to obtain a mesoporous material. Marked as sample A, finally used for Escherichia coli antibacterial experiment. (Silicon dioxide: zinc oxide: copper oxide is 85:10:5).

Embodiment 2

[0017] Dissolve 4.50 grams of F104 in 445.5 mL of deionized water, add sulfuric acid to make the pH value of the solution lower than 2, stir until it settles, add 24.03 g of butyl orthosilicate, 1.43 g of zinc nitrate and 0.22 g of copper chloride, at 100 Stirring at ℃ for 36 hours, drying at 650 ℃ for 6 hours to obtain mesoporous materials. Marked as sample B, finally used for E. coli antibacterial experiment. (Silicon dioxide: zinc oxide: copper oxide is 90:8:2).

Embodiment 3

[0019] Dissolve 3 grams of F65 in 597mL of deionized water, add nitric acid to make the pH of the solution lower than 2, stir until it settles, add 10.15g of methyl orthosilicate, 1.69g of zinc acetate and 0.79g of copper sulfate pentahydrate, at 120 Stir at ℃ for 1 day, after drying, calcinate at 700℃ for 6h to obtain mesoporous bioglass. Marked as sample C, finally used for Escherichia coli antibacterial experiment. (Silicon dioxide: zinc oxide: copper oxide is 80:15:5).

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Abstract

The invention discloses a silicon-zinc nano mesoporous inorganic antibacterial and a preparation method thereof. The preparation method comprises the following steps: stirring polyethylene glycol-polypropylene glycol-polyethylene glycol triblock copolymer, deionized water and acid together, adding a silicone source, a zinc source and a copper source, and heating to continuously stir to obtain sol-gel solution; and drying and sintering the sol-gel to obtain the silicon-zinc mesoporous material. The silicon-zinc nano mesoporous inorganic antibacterial consists of silicon dioxide and zinc oxide, and can also be added with copper oxide, wherein the silicon dioxide serves as a network support for the antibacterial; and the zinc oxide and the copper oxide serve as active bodies of the antibacterial; and mesopores prepared by the method have an ordered structure. The antibacterial has the characteristics of simple preparation method, strong bacteria resistance, durable antibacterial effect, stable bacteria resistance, no toxin to human bodies and the like, and can be widely applied to the fields such as ceramics, plastics, spinning, coatings, water treatment and the like.

Description

technical field [0001] The invention relates to a nano-mesoporous inorganic antibacterial agent and a preparation method thereof, in particular to a silicon-zinc nano-mesoporous inorganic antibacterial agent material and a preparation method thereof. Background technique [0002] Environmental pollution is becoming more and more serious, and a large number of microorganisms such as viruses, bacteria, and fungi endanger human health. Especially 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. [0003] There are three main types of antimicrobial agents: organic, natural and inorganic. Inorganic antibacterial agents are favored because of their easy industrialization, good weather resistance, stable performance, and wide antibacterial spectrum. Inorganic antibacterial agents mainly use inorganic materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/20A01N59/16A01N25/08A01P1/00
Inventor 冯新星陈建勇张华鹏朱海霖周岚
Owner ZHEJIANG SCI-TECH UNIV
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