CN1311105C - Production method of composite photo catalytic antibacterial foamed metal - Google Patents
Production method of composite photo catalytic antibacterial foamed metal Download PDFInfo
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- CN1311105C CN1311105C CNB200310111852XA CN200310111852A CN1311105C CN 1311105 C CN1311105 C CN 1311105C CN B200310111852X A CNB200310111852X A CN B200310111852XA CN 200310111852 A CN200310111852 A CN 200310111852A CN 1311105 C CN1311105 C CN 1311105C
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- boric acid
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Abstract
The present invention relates to foam metal, particularly to a method for producing composite antibacterial foam metal which takes foam nickel as substrates and loads titanium dioxide photocatalysts. The producing method comprises electroplating solution preparation and composite photocatalysis antibacterial layer preparation, wherein the electroplating solution preparation: the electroplating solution is prepared from nickel sulfate, nickel chloride, boracic acids and combination additive agents; the composite photocatalysis antibacterial layer preparation on the basis of the electroplating solution preparation according to the following operation: adding nanometer TiO2; stirring to cause the TiO2 to be fully wetted and dispersed; taking a nickel plate as an anode and foam nickel as a cathode; rack plating; naturally drying after the TiO2 is washed. The nanometer TiO2 film which is uniform and efficient is obtained on the surface of the foam nickel. Not only the effective action areas of light, fluid and photocatalysts are enhanced, but also the TiO2 photocatalysts have the advantages of firm inlay, difficult falloff, long service life for circular use and good sterilization effect.
Description
Technical field
The present invention relates to a kind of foamed metal, particularly relating to a kind of is substrate with the nickel foam, the production method of the composite antibiosis foamed metal of loaded titanium dioxide photocatalyst.
Background technology
Existing preparation titanium dioxide (TiO
2) method of loading type anti-biotic material mainly contains four kinds: (one) utilizes collosol and gel directly at resistant substrates surface preparation TiO
2Film also carries out sintering.Owing to adopt the nano-TiO of Prepared by Sol Gel Method
2Photocatalysis thin film is non-porous structure, and specific surface is little, and is active relatively poor, and requires base material that certain high temperature resistant requirement is arranged; (2) be directly at substrate surface load TiO
2Powder also carries out sintering.Because nano-TiO
2Very loose with combining of base material, catalyzer comes off easily, and its practicability is difficulty; (3) directly in matrix production, mix nano-TiO
2Suspension is because nano-TiO
2Be entrained in the matrix TiO of surface exposure
2Amount is few, and activity is lower; (4) utilize anti-nano-photocatalysts such as fluoro-resin and inorganic polysiloxane to load on the base material, because fluoro-resin and inorganic polysiloxane etc. are to the package action to nanocatalyst such as nanocatalyst, photocatalysis efficiency is low, and its bonding strength is also poor, and UV-light decomposition situation also can appear in organic resin.
Aforesaid method generally uses flaky material such as tinsel, and sheet glass or plastics etc. in use, exist effective light-receiving area little as carrier, and the little and vapour lock of the contact area of fluid and photocatalyst is not suitable for the shortcoming of high flow rate reaction greatly.
Summary of the invention
The objective of the invention is: a kind of production method of composite photocatalyst antimicrobial spume metal is provided, and the composite photocatalyst antimicrobial spume metal according to this method is produced has obtained uniformly on the nickel foam surface, nano-TiO efficiently
2Film has not only improved the effective active area of light, fluid and photocatalyst and TiO
2Photocatalyst is inlayed firmly, difficult drop-off, and it is long to recycle the life-span.
The production method of composite photocatalyst antimicrobial spume metal of the present invention comprises: the preparation of the preparation of electroplate liquid, composite photo-catalyst antibiotic layer.
The production method of composite photocatalyst antimicrobial spume metal of the present invention is by following steps:
(1) preparation of electroplate liquid
(1) water with certain volume is heated to 50-60 ℃;
(2) four kinds of components are sequentially added into: 1. add boric acid as the pH buffer reagent; 2. add single nickel salt as main salt; 3. nickelous chloride is as anode promotor; 4. add combined additive;
(3) formulation ratio: single nickel salt: nickelous chloride: boric acid: combined additive=230-250g/L: 35-40g/L: 35-40g/L: 5-8ml/L;
(2) preparation of composite photocatalyst antibiotic layer
On the basis of above-mentioned (one) preparation electroplate liquid, keep 50-60 ℃ of step operation in the following order of electroplate liquid:
(1) in every liter of electroplate liquid, adds pulverous TiO of particle diameter 30nm
2Photocatalyst 10-50g;
(2) stir 30-60min, make its fully wetting, dispersion;
(3) be anode with the nickel plate, aperture 30-110PI nickel foam is a negative electrode, utilizes composite electrodeposition method rack plating, and the time of rack plating is 10-15min, cathodic current 10-14A/dm
2
(4) washing back oven dry naturally.
The production method of composite photocatalyst antimicrobial spume metal of the present invention, the composite photocatalyst antimicrobial spume metal of producing, from Fig. 1 body formula micro-structure diagram: this foamed metal is tridimensional network as can be seen, voidage is big, specific surface is big, can effectively improve the photochemical catalysis useful area, air permeability is good, has improved the light utilising efficiency; As can be seen from Figure 2: foamed metal nano surface TiO
2The photocatalyst fraction of coverage is big, is uniformly dispersed, and firm by the nickel damascene, can effectively improve catalytic efficiency, long service life.The anti-microbial property evaluation shows: under ultra violet lamp, 10min sterilization killing rate reaches 99.99%.
Description of drawings
Fig. 1 is the body formula micro-structure diagram of the composite photocatalyst antimicrobial spume metal produced of the production method of composite photocatalyst antimicrobial spume metal of the present invention.
Fig. 2 is the metallography microscope structure iron of the composite photocatalyst antimicrobial spume metal produced of the production method of invention composite photocatalyst antimicrobial spume metal.
Embodiment
The compound method of combined additive:
Get asccharin in proportion: sodium lauryl sulphate: BN-250: BN-253=250g/L: 10g/L: 650g/L: 150g/L, mix then, promptly make combined additive.Wherein asccharin is a food grade, and other are electroplates level.
Embodiment one
1, the preparation of electroplate liquid
Power taking plating level single nickel salt 230g/L, nickelous chloride 40g/L, boric acid 35g/L, combined additive 6ml/L.
With 1m
3Water is heated to 50 ℃; Be sequentially added into 1. boric acid; 2. single nickel salt; 3. nickelous chloride; 4. combined additive is standby.
2, the preparation of composite photocatalyst antibiotic layer
In above-mentioned " 1 " preparation electroplate liquid, keep 50-60 ℃ of electroplate liquid, according to the following steps operation:
1. add nano-TiO
2Photocatalyst 10g/L, TiO
2Particle diameter 30nm;
2. stir 30min, make its fully wetting, dispersion;
3. be anode with the nickel plate, the 30PPI nickel foam is a negative electrode, and by composite electrodeposition method rack plating, the time of rack plating is 10min, cathode current density 10A/dm
2
4. washing back oven dry naturally.
The anti-microbial property evaluation shows: with the composite photocatalyst antimicrobial spume metal that this method is produced, under ultra violet lamp, 10min can make the every ml total number of bacterial colony of intestinal bacteria by 2.4 * 10
5Cfu reduces to 20cfu, killing rate 99.99%; The Pseudomonas aeruginosa total number of bacterial colony is by 3.5 * 10
5Cfu reduces to 20cfu, and killing rate is 99.83%.
Embodiment two
1, the preparation of electroplate liquid
Power taking plating level single nickel salt 250g/L, nickelous chloride 35g/L, boric acid 40g/L, combined additive 8ml/L.
With 1m
3Water is heated to 55 ℃; Be sequentially added into 1. boric acid; 2. single nickel salt; 3. nickelous chloride; 4. combined additive.
2, the preparation of composite photocatalyst antibiotic layer
In above-mentioned " 1 " preparation electroplate liquid, keep 50-60 ℃ of operation according to the following steps of electroplate liquid:
1. add nano-TiO
2Photocatalyst 50g/L, TiO
2Particle diameter 30nm;
2. stir 40min, make its fully wetting, dispersion;
3. be anode with the nickel plate, the 110PPI nickel foam is a negative electrode, and by composite electrodeposition method rack plating, the time of rack plating is 15min, cathode current density 14A/dm
2
4. washing back oven dry naturally.
The anti-microbial property evaluation shows: with the composite photocatalyst antimicrobial spume metal that this method is produced, under ultra violet lamp, 24h can make the every ml total number of bacterial colony of intestinal bacteria by 2.0 * 10
5Cfu reduces to 100cfu, killing rate 99.95%; The Pseudomonas aeruginosa total number of bacterial colony is by 2.3 * 10
5Cfu reduces to 100cfu, and killing rate is 99.96%.
Embodiment three
1, the preparation of electroplate liquid
Power taking plating level single nickel salt 240g/L, nickelous chloride 38g/L, boric acid 37g/L, combined additive 5ml/L.
With 1m
3Water is heated to 60 ℃; Be sequentially added into 1. boric acid; 2. single nickel salt; 3. nickelous chloride; 4. combined additive is standby.
2, the preparation of composite photocatalyst antibiotic layer
On the electroplate liquid basis of above-mentioned " 1 " preparation, keep 50-60 ℃ of electroplate liquid, according to the following steps operation:
1. add nano-TiO
2Photocatalyst 30g/L, TiO
2Particle diameter 30nm;
2. the powerful 60min that stirs makes its abundant moistening dispersion;
3. be anode with the nickel plate, the 70PPI nickel foam is a negative electrode, composite electrodeposition method rack plating, the time 13min of rack plating, cathode current density 12A/dm
2
4. washing back oven dry naturally.
The anti-microbial property evaluation shows: the composite photocatalyst antimicrobial spume metal of producing with this method, under ultra violet lamp, to colibacillary killing rate: 10 minutes be 100.000%, 5 minute be 99.999%, 2 minute 99.860%; Killing rate to staphylococcus aureus: 10 minutes 99.974%, 5 minute 99.966%, 2 minute 99.947%; To the broken rate (destructive rate HgsAg) of killing of virus: 10 minutes be 100.00%, 5 minute be 99.902%, 2 minute be 99.805%.
Claims (4)
1, a kind of production method of composite photocatalyst antimicrobial spume metal is characterized in that: may further comprise the steps
(1) preparation of electroplate liquid
(1) water with certain volume is heated to 50-60 ℃;
(2) four kinds of components are sequentially added into: 1. add boric acid as the pH buffer reagent; 2. add single nickel salt as main salt; 3. nickelous chloride is as anode promotor; 4. add combined additive;
(3) formulation ratio: single nickel salt: nickelous chloride: boric acid: combined additive=230-250g/L: 35-40g/L: 35-40g/L: 5-8ml/L;
(2) preparation of composite photocatalyst antibiotic layer
On the basis of above-mentioned (one) preparation electroplate liquid, keep 50-60 ℃ of step operation in the following order of electroplate liquid:
(1) in every liter of electroplate liquid, adds pulverous TiO of particle diameter 30nm
2Photocatalyst 10-50g;
(2) stir 30-60min, make its fully wetting, dispersion;
(3) be anode with the nickel plate, aperture 30-110PI nickel foam is a negative electrode, utilizes composite electrodeposition method rack plating, and the time of rack plating is 10-15min, cathodic current 10-14A/dm
2
(4) washing back oven dry naturally.
2, the production method of composite photocatalyst antimicrobial spume metal according to claim 1 is characterized in that:
(1), the preparation of electroplate liquid
(1) water with certain volume is heated to 50 ℃;
(2) four kinds of components are sequentially added into: 1. add boric acid as the pH buffer reagent; 2. add single nickel salt as main salt; 3. nickelous chloride is as anode promotor; 4. add combined additive;
(3) formulation ratio: single nickel salt 230g/L, nickelous chloride 40g/L, boric acid 35g/L, combined additive 6ml/L;
(2), the preparation of composite photocatalyst antibiotic layer
1. in every liter of electroplate liquid, add pulverous nano-TiO of particle diameter 30nm
2Photocatalyst 10g;
2. stir 30min, make its fully wetting, dispersion;
3. the 30PPI nickel foam is a negative electrode, and the time of rack plating is 10min, cathode current density 10A/dm
2
3, the production method of composite photocatalyst antimicrobial spume metal according to claim 1 is characterized in that:
(1), the preparation of electroplate liquid
(1) water with certain volume is heated to 55 ℃;
(2) four kinds of components are sequentially added into: 1. add boric acid as the pH buffer reagent; 2. add single nickel salt as main salt; 3. nickelous chloride is as anode promotor; 4. add combined additive;
(3) formulation ratio: single nickel salt 250g/L, nickelous chloride 35g/L, boric acid 40g/L, combined additive 8ml/L;
(2), the preparation of composite photocatalyst antibiotic layer
1. in every liter of electroplate liquid, add pulverous TiO of particle diameter 30nm
2Photocatalyst 50g;
2. stir 40min, make its fully wetting, dispersion;
3. the 110PPI nickel foam is a negative electrode, and the time of rack plating is 15min, cathode current density 14A/dm
2
4, the production method of composite photocatalyst antimicrobial spume metal according to claim 1 is characterized in that:
(1), the preparation of electroplate liquid
(1) water with certain volume is heated to 60 ℃;
(2) four kinds of components are sequentially added into: 1. add boric acid as the pH buffer reagent; 2. add single nickel salt as main salt; 3. nickelous chloride is as anode promotor; 4. add combined additive;
(3) formulation ratio: single nickel salt 240g/L, nickelous chloride 38g/L, boric acid 37g/L, combined additive 5ml/L;
(2), the preparation of composite photocatalyst antibiotic layer
1. in every liter of electroplate liquid, add pulverous TiO of particle diameter 30nm
2Photocatalyst 30g;
2. the powerful 60min that stirs makes its abundant moistening dispersion;
3. the 70PPI nickel foam is a negative electrode, the time 13min of rack plating, cathode current density 12A/dm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310111852XA CN1311105C (en) | 2003-10-22 | 2003-10-22 | Production method of composite photo catalytic antibacterial foamed metal |
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|---|---|---|---|
| CNB200310111852XA CN1311105C (en) | 2003-10-22 | 2003-10-22 | Production method of composite photo catalytic antibacterial foamed metal |
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| CN1537978A CN1537978A (en) | 2004-10-20 |
| CN1311105C true CN1311105C (en) | 2007-04-18 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376323C (en) * | 2004-12-03 | 2008-03-26 | 中国石油化工股份有限公司 | A kind of metal foam hydrogenation catalyst and its preparation method and application |
| CN1321739C (en) * | 2005-06-09 | 2007-06-20 | 上海交通大学 | Production of TiO2 naometer light catalyzing net from foam metal carrier |
| CN102021630B (en) * | 2011-01-07 | 2011-12-28 | 山东交通学院 | Coaxial heterogeneous ceric dioxide nanotube-titanium dioxide nanotube array thin film |
| CN102266774A (en) * | 2011-06-07 | 2011-12-07 | 广东工业大学 | Semiconductor nano photocatalysis material and preparation method thereof |
| CN109183085A (en) * | 2018-08-16 | 2019-01-11 | 张家港市东威新材料技术开发有限公司 | A kind of preparation method of nickel-titania coextruded film |
| TWI695914B (en) * | 2019-05-29 | 2020-06-11 | 揚技實業有限公司 | Manufacturing method of photocatalyst filter and air purification device composed of photocatalyst filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4955135A (en) * | 1988-11-16 | 1990-09-11 | Vapor Technologies Inc. | Method of making matrix composites |
| CN1070736C (en) * | 1994-11-16 | 2001-09-12 | 东陶机器株式会社 | Photocatalyst functional material and manufacturing method thereof |
| CN1410158A (en) * | 2002-11-12 | 2003-04-16 | 中国地质大学（武汉） | Method of loading titanium dioxide photo catalyst on metal surface |
-
2003
- 2003-10-22 CN CNB200310111852XA patent/CN1311105C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4955135A (en) * | 1988-11-16 | 1990-09-11 | Vapor Technologies Inc. | Method of making matrix composites |
| CN1070736C (en) * | 1994-11-16 | 2001-09-12 | 东陶机器株式会社 | Photocatalyst functional material and manufacturing method thereof |
| CN1410158A (en) * | 2002-11-12 | 2003-04-16 | 中国地质大学（武汉） | Method of loading titanium dioxide photo catalyst on metal surface |
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Granted publication date: 20070418 Termination date: 20111022 |