Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of antibacterial nanoporous material

A nanoporous and porous titanium technology, which is applied in the fields of botanical equipment and methods, metal material coating process, chemicals for biological control, etc. It is suitable for large-scale industrial production, with low production cost and enhanced antibacterial effect.

Active Publication Date: 2020-10-16
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, nano antibacterial materials have the problem that they cannot achieve sterilization, and the surface cannot realize the self-cleaning function during the antibacterial process

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment includes the following steps:

[0020] Step 1. The porous titanium plate prepared by titanium powder is used as the cathode, the graphite is used as the anode, and the copper sulfate solution with a mass concentration of 25% is used as the electrolyte, and electrodeposition is carried out to make the Cu in the electrolyte 2+ Deposited on the surface of the porous titanium plate;

[0021] Step 2, depositing Cu on the surface in step 1 2+ The porous titanium plate is put into an argon furnace for heat treatment; the temperature of the heat treatment is 600°C, and the holding time is 2h;

[0022] Step 3, depositing Cu on the heat-treated surface in step 2 2+ The porous titanium plate is placed in a nitric acid solution with a mass concentration of 45%, and is subjected to acid leaching treatment at a temperature of 70° C. to obtain a nanoporous material; the nanoporous material is composed of a porous titanium matrix and acicular nanoporous titanium oxide...

Embodiment 2

[0025] This embodiment includes the following steps:

[0026] Step 1. The porous titanium alloy plate prepared by titanium alloy fiber is used as the cathode, the platinum sheet is used as the anode, and the copper sulfate solution with a mass concentration of 25% is used as the electrolyte for electrodeposition to make the Cu in the electrolyte 2+ Deposited on the surface of the porous titanium plate;

[0027] Step 2, depositing Cu on the surface in step 1 2+ The porous titanium alloy plate is put into an argon furnace for heat treatment; the temperature of the heat treatment is 600°C, and the holding time is 2h;

[0028] Step 3, depositing Cu on the heat-treated surface in step 2 2+ The porous titanium alloy plate is placed in a nitric acid solution with a mass concentration of 45%, and is subjected to acid leaching treatment at a temperature of 70° C. to obtain a nanoporous material; the nanoporous material is composed of a porous titanium alloy matrix and acicular nanopo...

Embodiment 3

[0031] This embodiment includes the following steps:

[0032] Step 1. The porous titanium alloy plate prepared by titanium alloy powder is used as the cathode, the graphite is used as the anode, and the copper sulfate solution with a mass concentration of 20% is used as the electrolyte to conduct electrodeposition to make the Cu in the electrolyte 2+ Deposited on the surface of the porous titanium plate;

[0033] Step 2, depositing Cu on the surface in step 1 2+ The porous titanium plate is put into an argon furnace for heat treatment; the temperature of the heat treatment is 500°C, and the holding time is 2h;

[0034] Step 3, depositing Cu on the heat-treated surface in step 2 2+ The porous titanium plate is placed in a nitric acid solution with a mass concentration of 40%, and is subjected to acid leaching treatment at a temperature of 60° C. to obtain a nanoporous material; the nanoporous material is composed of a porous titanium alloy matrix and acicular nanoporous titan...

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 an antibacterial nano porous material. The preparation method specifically comprises the following steps that, first, porous titanium or a porous titanium alloy is taken as a cathode, graphite or a platinum sheet is taken as an anode, electrodeposition is performed by taking a copper sulfate solution as an electrolyte, Cu<2+> in the electrolyte is deposited on the surface of the porous titanium or the porous titanium alloy, and then heat treatment and nitric acid leaching are sequentially carried out to obtain the nano porous material. Accordingto the method, the Cu is attached to and diffused into the porous titanium or the porous titanium alloy to form a multi-element alloy, then the nitric acid leaching is carried out to remove copper inthe multi-element alloy and form nano holes, meanwhile, oxidation is carried out, a needle-shaped nano porous titanium oxide surface layer is formed on the porous titanium or porous titanium alloy substrate to obtain the nano porous material, and the needle-shaped nano porous titanium oxide on the surface of the nano porous material can pierce the surface of bacteria and generate capillary force,so that while the antibacterial and bactericidal functions are realized, the self-cleaning function is realized.

Description

technical field [0001] The invention belongs to the technical field of medical inorganic antibacterial materials, and in particular relates to a preparation method of an antibacterial nanoporous material. Background technique [0002] Antibacterial materials are generally divided into two categories, namely organic antibacterial materials and inorganic antibacterial materials. With the rapid development of medical technology in recent years, various effective organic antibacterial materials have been developed. The main varieties of organic antibacterial materials are quaternary ammonium salts, imidazoles, halogens, phenols, etc. Among them, quaternary ammonium salt antibacterial materials are favored because of their low toxicity, low price, and broad-spectrum antibacterial properties, and are currently the most widely used organic antibacterial materials. However, the safety and stability of organic antibacterial materials have always been an important obstacle to the pr...

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): C25D3/38C25D5/50C23F1/18C23C22/54A01N59/16A01P1/00
CPCA01N59/16C23C22/54C23F1/18C25D3/38C25D5/50
Inventor 李烨王建忠敖庆波马军吴琛荆鹏
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH