A kind of preparation method of nano-zinc oxide-wrapped nano-silver antibacterial composite material

A nano-zinc oxide and nano-silver antibacterial technology, applied in chemical instruments and methods, botanical equipment and methods, separation methods, etc., can solve the problems of weakening the synergistic antibacterial effect of silver, reduce the composite probability, improve the photocatalytic efficiency, The effect of strong adsorption capacity

Active Publication Date: 2020-10-16
广东红树林新材料科技有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method limits the amount of silver added and weakens the synergistic antibacterial effect of silver

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of nano-zinc oxide-wrapped nano-silver antibacterial composite material
  • A kind of preparation method of nano-zinc oxide-wrapped nano-silver antibacterial composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The present embodiment provides a method for preparing a nano-zinc oxide-wrapped nano-silver antibacterial composite material, which specifically includes the following steps:

[0033] (1) dissolve zinc nitrate in water to form a uniform solution, then add the dispersion of cetyl trimethyl ammonium bromide (water is a solvent) to it, the addition of cetyl trimethyl ammonium bromide It is 3% of the mass of zinc nitrate. In the case of stirring, quickly pour an equimolar sodium hydroxide solution with zinc nitrate, stir at room temperature (25-30 ° C) for 3 hours, then let the reaction solution stand, and filter and collect it within 24 hours. Precipitation, the precipitation was washed with water for many times and then heat-treated at 400 °C for 4 h to obtain porous nano-zinc oxide. The particle size and pore size of the obtained porous nano-zinc oxide were observed with a particle size analyzer.

[0034] (2) Disperse 1g of silane coupling agent γ-aminopropyltriethoxys...

Embodiment 2

[0040] The present embodiment provides a method for preparing a nano-zinc oxide-wrapped nano-silver antibacterial composite material, which specifically includes the following steps:

[0041] (1) dissolve zinc chloride in water to form a homogeneous solution, then add a dispersion of cetyltrimethylammonium bromide and SBA-15 molecular sieve (water is a solvent) to it, cetyltrimethylammonium The amount of ammonium bromide and SBA-15 molecular sieve added is 1.5% of the mass of zinc nitrate, respectively. In the case of stirring, quickly pour the sodium hydroxide solution equal to the mole of zinc nitrate, and stir at room temperature (25-30 ° C) After 5 hours, the reaction solution was allowed to stand, and the precipitate was collected by filtration within 24 hours. The precipitate was washed with water for several times and then heat-treated at 600° C. for 5 hours to obtain porous nano-zinc oxide. The particle size and pore size of the obtained porous nano zinc oxide are obse...

Embodiment 3

[0047] The present embodiment provides a method for preparing a nano-zinc oxide-wrapped nano-silver antibacterial composite material, which specifically includes the following steps:

[0048] (1) Dissolve zinc sulfate in water to form a uniform solution, then add a dispersion of polyvinylpyrrolidone and sodium dodecylbenzenesulfonate (water is a solvent), polyvinylpyrrolidone and dodecylbenzenesulfonic acid to it The amount of sodium added is 1.5% of the mass of zinc nitrate. In the case of stirring, quickly pour an equimolar sodium hydroxide solution with zinc nitrate, stir at room temperature (25-30 ° C) for 5 hours, and then let the reaction solution stand still , the precipitate was collected by filtration within 24h, and the precipitate was washed with water for several times and then heat-treated at 650°C for 5h to obtain porous nano-zinc oxide. The particle size and pore size of the obtained porous nano zinc oxide are observed with a particle size analyzer, and the part...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical field of nano-zinc oxide composite materials, in particular to a preparation method of nano-zinc oxide-wrapped nano-silver antibacterial composite materials. The present invention assists in synthesizing porous nano-zinc oxide through additives, and synthesizes porous nano-zinc oxide with porous surface, large specific surface area and strong adsorption force, and then performs surface modification treatment on porous nano-zinc oxide, and the modified nano-zinc oxide is not easy Agglomeration, surface-modified nano-silver can smoothly enter the pores of surface-modified nano-zinc oxide to prepare a composite material made of surface-modified nano-zinc oxide wrapped surface-modified nano-silver. The composite material has high photocatalytic efficiency and strong adsorption capacity. Effectively adsorb and decompose formaldehyde and other polluting gases to achieve the purpose of removing formaldehyde. At the same time, after the zinc oxide on the surface of the composite material absorbs bacteria and kills bacteria, the silver wrapped in the composite material further kills bacteria, thereby improving the antibacterial and sterilizing ability of the composite material.

Description

technical field [0001] The invention relates to the technical field of nano-zinc oxide composite materials, in particular to a preparation method of nano-zinc oxide-wrapped nano-silver antibacterial composite materials. Background technique [0002] In recent years, with the rapid development of society and the continuous improvement of material living standards, people's requirements for their own living environment are also increasing, so antibacterial materials have also received extensive attention. Among them, nano-zinc oxide is one of the more active green antibacterial agents. [0003] Nano-zinc oxide is a wide bandgap II and VI compound semiconductor material with regular hexagonal wurtzite structure, small size, large specific surface area, and very high chemical activity. Because of its excellent photocatalytic activity under ultraviolet light irradiation, it can decompose organic substances and play the role of antibacterial and deodorant. have important applica...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/66A01N59/16A01P1/00A01P3/00B01J35/10B01D53/86B01D53/72
CPCA01N59/16B01D53/8668B01D2255/802B01J23/66B01J35/004B01J35/1004
Inventor 沈海华曾和平
Owner 广东红树林新材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap