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Efficient antibacterial and antivirus copper-based filter screen with hierarchical structure and preparation method

A graded structure and high-efficiency technology, applied in water purification and antibacterial functions, environmental protection materials, with air purification field, can solve the problems of inconvenient air purification and copper ion loss of liquid antibacterial and disinfectant, and achieve the promotion of Cu ion release, increase in sterilization, etc. The effect of living efficiency

Active Publication Date: 2020-08-18
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current method of using copper-based antibacterial and anti-virus materials is to disperse them and then use them in a solution, but liquid anti-bacterial and anti-virus agents are not convenient for air purification, and when used for water disinfection, copper ions will be lost rapidly with the flow of water

Method used

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  • Efficient antibacterial and antivirus copper-based filter screen with hierarchical structure and preparation method
  • Efficient antibacterial and antivirus copper-based filter screen with hierarchical structure and preparation method
  • Efficient antibacterial and antivirus copper-based filter screen with hierarchical structure and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0042]Embodiment 1: (1) copper mesh pretreatment: first preparation sodium hydroxide solubility is the mixed aqueous solution that 2.5mol / L and ammonium persulfate solubility are 0.13mol / L; Then pass through sulfuric acid, deionized water, Acetone ultrasonically cleaned copper mesh was immersed in the above solution for 30 minutes; rinsed with deionized water and dried at room temperature for use; (2) Preparation of surface modifier: first, 1 volume part of N-N dimethylformamide, 8 volume parts of deionized water and Mix 2 volumes of absolute ethanol and stir for 2 minutes, add 0.002 parts by mass of terephthalic acid, and stir for 2 minutes. (3) Preparation of metal-organic framework: firstly, the above-mentioned surface modification agent was heated to 70° C., and then the substrate was soaked in the surface modification agent to react for 20 minutes and then dried at 50° C. (4) Loading of nano-visible light photocatalytic materials: first absorb 1 part by volume of nano-tit...

Embodiment 2

[0043] Embodiment 2: (1) copper mesh pretreatment: first preparation sodium hydroxide solubility is the mixed aqueous solution that 2.5mol / L and ammonium persulfate solubility are 0.13mol / L; Then pass through sulfuric acid, deionized water, Acetone ultrasonically cleaned copper mesh was immersed in the above solution for 30 minutes; rinsed with deionized water and dried at room temperature for use; (2) Preparation of surface modifier: first, 1 volume part of N-N dimethylformamide, 10 volume parts of deionized water and Mix absolute ethanol with 0 volume and stir for 2 minutes, add 0.002 parts by mass of terephthalic acid, and stir for 2 minutes. (3) Preparation of metal-organic framework: firstly, the above-mentioned surface modification agent was heated to 70° C., and then the substrate was soaked in the surface modification agent to react for 20 minutes and then dried at 50° C. (4) Loading of nano-visible light photocatalytic materials: first absorb 1 part by volume of nano-...

Embodiment 3

[0044] Embodiment 3: (1) copper mesh pretreatment: first preparation sodium hydroxide solubility is the mixed aqueous solution that 2.5mol / L and ammonium persulfate solubility are 0.13mol / L; Then pass through sulfuric acid, deionized water, Acetone ultrasonically cleaned copper mesh was immersed in the above solution for 30 minutes; rinsed with deionized water and dried at room temperature for use; (2) Preparation of surface modifier: first, 1 volume part of N-N dimethylformamide, 10 volume parts of deionized water and Mix absolute ethanol with 0 volume and stir for 2 minutes, add 0.002 parts by mass of terephthalic acid, and stir for 2 minutes. (3) Preparation of metal-organic framework: first, the above-mentioned surface modification agent was heated to 70° C., and then the substrate was soaked in the surface modification agent to react for 10 minutes and then dried at 50° C. (4) Loading of nano-visible light photocatalytic materials: first absorb 1 part by volume of nano-ti...

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Abstract

The invention discloses an efficient antibacterial and antivirus copper-based filter screen with a hierarchical structure and a preparation method. The antibacterial copper-based filter screen is composed of a copper screen skeleton, a Cu (OH) 2 nanorod array growing on the surface of a copper screen, a Cu-based metal organic framework (Cu-BDC MOF for short, copper-terephthalic acid) array growingon the surfaces of Cu (OH) 2 nanorods, and a visible light photocatalyst loaded on the surface of Cu-BDC MOF. The production comprises four steps of copper net surface pretreatment, preparation of asurface modifier, preparation of a metal organic framework and loading of the nano visible light photocatalytic material. The efficient antibacterial and antivirus copper-based filter screen with thehierarchical structure, disclosed by the invention, can effectively inactivate bacteria, viruses and the like, ensures cleanness of an environmental water source and domestic water, ensures human health, and can be applied to the fields of protective masks, air purification, water disinfection and the like.

Description

technical field [0001] The invention relates to the field of environmental protection materials, in particular to the field of air purification, water body purification and antibacterial functions. Background technique [0002] With the continuous development of the times, people's living standards continue to improve, but in recent decades there have been many air-borne diseases, and the unclean domestic water has caused the wife's body discomfort to still exist, so people are eager to see some technologies that make Air and domestic water are safe and reliable. [0003] Copper and copper ions have a long history of being used as antibacterial agents. They are broad-spectrum inorganic antibacterial and antivirus materials. microorganism. The current method of using copper-based antibacterial and anti-virus materials is mostly to disperse them and then use them in a solution, but liquid anti-bacterial and anti-virus agents are not convenient for air purification, and coppe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/20A01N59/16A01N59/00A01P1/00C02F1/50C02F1/30C02F1/72C09D5/14
CPCA01N59/00A01N59/16A01N59/20C02F1/30C02F1/50C02F1/725C02F2303/04C02F2305/10C09D5/14
Inventor 鲁启鹏李墨影曹文斌刘文秀曾丽赵金平
Owner UNIV OF SCI & TECH BEIJING
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