Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of carbon nanosilver/titanium dioxide composite material

A technology of titanium dioxide and composite materials, applied in botany equipment and methods, chemicals for biological control, animal repellants, etc., can solve the problems of carcinogenicity, accelerated aging of furniture and electrical appliances, and limited application, and achieve antibacterial Strong durability, unlimited use environment, accelerated aging of furniture and electrical appliances

Inactive Publication Date: 2018-01-16
陈磊
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the defect of photocatalyst technology in the prior art is that it needs to be irradiated by ultraviolet light to take effect, but the ultraviolet content in visible light in life is extremely low, so the practical application is not large, and long-term ultraviolet irradiation has carcinogenic effects on the human body, and at the same time accelerates the aging of furniture and electrical appliances

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
  • Preparation method of carbon nanosilver/titanium dioxide composite material
  • Preparation method of carbon nanosilver/titanium dioxide composite material
  • Preparation method of carbon nanosilver/titanium dioxide composite material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The invention provides a kind of preparation method of carbon nano silver / titanium dioxide composite material, it comprises the following steps:

[0025] (1) Take nanoparticle carbon and add it to absolute ethanol, and obtain nanoparticle carbon suspension A by ultrasonication; the weight ratio of nanoparticle carbon to absolute ethanol is 1~2:7~16, the ultrasonic frequency is 100~150Hz, and the time is 1~2h;

[0026] (2) Add tetrabutyl titanate to the mixed solution of ethanol and acetic acid, stir for 1-1.5 hours to obtain mixed solution B; wherein, the volume ratio of ethanol and acetic acid is 95-99:1-5, tetrabutyl titanate The volume ratio of the mixed solution with ethanol and acetic acid is 3~5:45~47;

[0027] (3) The carbon suspension A is mixed with the mixed solution B, and the mixed solution C of ethanol and water is added under stirring conditions to form a gel; wherein, the volume ratio of the carbon suspension A to the mixed solution B is 3 to 5:45 ~47, ...

Embodiment 1

[0037] A kind of preparation method of carbon nano-silver / titanium dioxide composite material, it comprises the following steps:

[0038] (1) Add nanoparticle carbon into absolute ethanol, and obtain nanoparticle carbon suspension A by ultrasonication; the weight ratio of nanoparticle carbon to absolute ethanol is 2:7, the ultrasonic frequency is 150Hz, and the time is 2h;

[0039] (2) Add tetrabutyl titanate to the mixed solution of ethanol and acetic acid, stir for 1 hour to obtain mixed solution B; wherein, the volume ratio of ethanol and acetic acid is 95:5, and the mixed solution of tetrabutyl titanate, ethanol and acetic acid The volume ratio is 3:45;

[0040] (3) The carbon suspension A is mixed with the mixed solution B, and the mixed solution C of ethanol and water is added under stirring conditions to form a gel; wherein, the volume ratio of the carbon suspension A to the mixed solution B is 3:46, and mixed The volume ratio of ethanol and water in liquid C is 17:2, ...

Embodiment 2

[0046] A kind of preparation method of carbon nano-silver / titanium dioxide composite material, it comprises the following steps:

[0047] (1) Take nanoparticle carbon and add it to absolute ethanol, and obtain nanoparticle carbon suspension A by ultrasonication; the weight ratio of nanoparticle carbon to absolute ethanol is 1:10, the ultrasonic frequency is 100Hz, and the time is 1.5h;

[0048] (2) Add tetrabutyl titanate to the mixed solution of ethanol and acetic acid, stir for 1.5h to obtain mixed solution B; wherein, the volume ratio of ethanol and acetic acid is 99:1, and the mixture of tetrabutyl titanate, ethanol and acetic acid The volume ratio of the liquid is 4:46;

[0049] (3) The carbon suspension A is mixed with the mixed solution B, and the mixed solution C of ethanol and water is added under stirring conditions to form a gel; wherein, the volume ratio of the carbon suspension A to the mixed solution B is 5:45, and mixed The volume ratio of ethanol and water in ...

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

No PUM Login to View More

Abstract

The invention discloses a preparation method of a carbon nanosilver / titanium dioxide composite material, which comprises the following steps: preparing a nanoparticle carbon suspension A and a mixture B; mixing the nanoparticle carbon suspension A and the mixture B, and adding a mixture C to form a gel; drying and calcining the gel to obtain the nano carbon / titanium dioxide composite powder; adding the nano carbon / titanium dioxide composite powder in a silver nitrate solution, and stirring the materials to obtain a mixture D; continuously stirring the mixture D, dropping dihydrate trisodiumcitrate until the color of the solution is yellow, stopping stirring, and aging the materials to obtain the precipitates, and washing and drying the product to obtain the carbon nanosilver / titanium dioxide composite material. The method is characterized in that through doping modification of carbon nanosilver, the carbon nanosilver / titanium dioxide composite material has catalytic effect under visible light irradiation, which has great practical significance. Under light conditions and dark conditions, the antibacterial persistence of the carbon nanosilver / titanium dioxide composite material is better than that of silver nitrate with concentration being 0.1% and much better than the performance of titanium dioxide in the dark condition, and the carbon nanosilver / titanium dioxide compositematerial has strong antimicrobial performance of silver nitrate and photocatalytic antibacterial performance of titanium dioxide.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a method for preparing a carbon nano silver / titanium dioxide composite material. Background technique [0002] The principle of slow-release photolysis technology: Nano-titanium dioxide is irradiated by visible light, and the electrons in the valence band are excited to the conduction band, forming electrons and holes, and the O adsorbed on its surface. 2 and H 2 O acts to generate superoxide anion radicals, O 2- And hydroxyl radical -OH, its free radical has a strong ability to oxidize and decompose, can destroy the C-C bond, C-H bond, C-N bond, C-O bond, O-H bond, N-H bond in organic matter, and decompose organic matter into carbon dioxide and water; The bacterial cell membrane solidifies the protein of the virus, changes the living environment of the bacteria and the virus, and kills the bacteria and the virus. [0003] However, the defect of photocatalyst techn...

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 Applications(China)
IPC IPC(8): A01N59/16A01N59/00A01P1/00
Inventor 陈磊
Owner 陈磊
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com