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

Production method of composite photo catalytic antibacterial foamed metal

A technology of composite photocatalysis and metal foam is applied in the production field of composite antibacterial metal foam, which can solve the problems of small effective light-receiving area, low activity, low photocatalytic efficiency, etc. overly good effect

Inactive Publication Date: 2007-04-18
KAINAFANG INDAL SHUNDE DISTRICT FOSHAN CITY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to nano TiO 2 The combination with the base material is very loose, the catalyst is easy to fall off, and its practical application is difficult; (3) Directly doping nano-TiO in the production of the base 2 suspension, due to nano-TiO 2 Doped in the matrix, exposed TiO 2 The amount is less and the activity is lower; (4) Utilize anti-nano photocatalysts such as fluororesins and inorganic silicon resins to load on the substrate, due to the wrapping effect of fluororesins and inorganic silicon resins on nanocatalysts, etc., the photocatalytic efficiency Low, its bonding strength is also poor, and organic resin will also appear UV decomposition
[0003] The above methods generally use flake materials such as metal flakes, glass flakes or plastics as carriers. During use, there are disadvantages such as small effective light-receiving area, small contact area between fluid and photocatalyst, and large air resistance, which are not suitable for high-flow rate reactions.

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
  • Production method of composite photo catalytic antibacterial foamed metal
  • Production method of composite photo catalytic antibacterial foamed metal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Preparation of electroplating solution

[0024] Get electroplating grade nickel sulfate 230g / L, nickel chloride 40g / L, boric acid 35g / L, combined additive 6ml / L.

[0025] will be 1m 3 Heat the water to 50°C; add ①boric acid; ②nickel sulfate; ③nickel chloride; ④combined additives in order.

[0026] 2. Preparation of composite photocatalytic antibacterial layer

[0027] In the electroplating solution prepared in "1" above, keep the electroplating solution at 50-60°C, and operate according to the following steps:

[0028] ①Add nano-TiO 2 Photocatalyst 10g / L, TiO 2 Particle size 30nm;

[0029] ② Stir for 30 minutes to fully wet and disperse;

[0030] ③Using the nickel plate as the anode and 30PPI foamed nickel as the cathode, the composite electrodeposition method is used for rack plating, the rack plating time is 10min, and the cathode current density is 10A / dm 2 .

[0031] ④ Wash and dry naturally.

[0032] The evaluation of antibacterial properties shows that...

Embodiment 2

[0034] 1. Preparation of electroplating solution

[0035] Get electroplating grade nickel sulfate 250g / L, nickel chloride 35g / L, boric acid 40g / L, combined additive 8ml / L.

[0036] will be 1m 3 Heat the water to 55°C; add in order ① boric acid; ② nickel sulfate; ③ nickel chloride; ④ combined additives.

[0037] 2. Preparation of composite photocatalytic antibacterial layer

[0038] In the electroplating solution prepared in the above "1", keep the electroplating solution at 50-60°C and operate according to the following steps:

[0039] ①Add nano-TiO 2 Photocatalyst 50g / L, TiO 2 The particle size is 30nm;

[0040] ② Stir for 40 minutes to fully wet and disperse;

[0041] ③Using nickel plate as anode and 110PPI foamed nickel as cathode, rack plating is performed by composite electrodeposition method, the rack plating time is 15min, and the cathode current density is 14A / dm 2 .

[0042] ④ Wash and dry naturally.

[0043] The evaluation of antibacterial properties shows t...

Embodiment 3

[0045] 1. Preparation of electroplating solution

[0046] Get electroplating grade nickel sulfate 240g / L, nickel chloride 38g / L, boric acid 37g / L, combined additive 5ml / L.

[0047] will be 1m 3 Heat the water to 60°C; add ①boric acid; ②nickel sulfate; ③nickel chloride; ④combined additives in order.

[0048] 2. Preparation of composite photocatalytic antibacterial layer

[0049] On the basis of the electroplating solution prepared in "1" above, keep the electroplating solution at 50-60°C, and operate according to the following steps:

[0050] ①Add nano-TiO 2 Photocatalyst 30g / L, TiO 2 Particle size 30nm;

[0051] ② Stir vigorously for 60 minutes to make it fully wet and dispersed;

[0052] ③Using nickel plate as anode, 70PPI foam nickel as cathode, composite electrodeposition method rack plating, rack plating time 13min, cathode current density 12A / dm 2 ;

[0053] ④ Wash and dry naturally.

[0054] The evaluation of antibacterial performance shows that the composite ph...

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
control rateaaaaaaaaaa
control rateaaaaaaaaaa
Login to View More

Abstract

A photocatalytic antibacterial composite foamed metal is composed of the foam nickel as base and the TiO2 photocatalyst carrier by said base. Its preparing process includes such steps as preparing electroplating liquid fromed nickel sulfate, nickel chloride, boric acid and composite additive, adding TiO2 nanoparticles, stirring, electroplating with nickel plate as anode and foamed nickel as cathode, water washing and baking. Its advantages are high antibacterial effect and long service life.

Description

technical field [0001] The invention relates to a metal foam, in particular to a production method of a composite antibacterial metal foam with nickel foam as a base and loaded with a titanium dioxide photocatalyst. Background technique [0002] The existing preparation of titanium dioxide (TiO 2 ) There are four main methods for loaded antimicrobial materials: (1) Utilize sol-gel to directly prepare TiO on the surface of heat-resistant substrate 2 film and sintered. Nano-TiO prepared by sol-gel method 2 The photocatalytic film is a non-porous structure with a small specific surface and poor activity, and requires the substrate material to have certain high temperature resistance requirements; (2) directly load TiO on the surface of the substrate 2 powder and sintered. Due to nano TiO 2 The combination with the base material is very loose, the catalyst is easy to fall off, and its practical application is difficult; (3) Directly doping nano-TiO in the production of the ...

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): C25D15/00C25D3/12B01J21/06B01J32/00B01J35/10B01J37/02
Inventor 王宝柱何志能
Owner KAINAFANG INDAL SHUNDE DISTRICT FOSHAN CITY