CN106031887A - Photocatalytic coating agent, preparation method and coating method thereof - Google Patents
Photocatalytic coating agent, preparation method and coating method thereof Download PDFInfo
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Abstract
The present invention discloses a photocatalytic coating agent, a preparation method and a coating method thereof. The photocatalytic coating agent comprises, by mass, 0.1-20 parts of a nanometer photocatalyst, 0.01-2 parts of a binder, 0.01-3 parts of a water-soluble titanium compound, 100 parts of deionized water, and 0.001-0.2 part of metal ions, wherein the metal ions are one or a mixture comprising a plurality materials selected from gold ions, silver ions, platinum ions, palladium ions, rhodium ions, iridium ions, copper ions, iron ions, cobalt ions, nickel ions, manganese ions, vanadium ions, chromium ions, tantalum ions, lanthanum ions, and cerium ions according to any ratio. The present invention provides the photocatalytic coating agent, which has characteristics of no toxicity, environment protection, simple obtaining, high transparency, stable dispersion and suspending, and high photocatalytic performance, and is easily and tightly fixed on a plurality of substrate materials.
Description
Technical field
The present invention relates to photocatalysis technology field, particularly relate to a kind of coating agent of photocatalysis and preparation method thereof and the method for coating.
Background technology
Catalysis material is a kind of under the irradiation of light, self does not changes, but can promote the material of chemical reaction.The almost separable solution of catalysis material, to human body and all organic substances of bad environmental and part inorganic substances, plays the effect of the depollution of environment, and it can effectively utilize the sunlight of nature, does not cause waste and the formation of additional pollution of resource.Catalysis material to be made plays photocatalysis efficiency as far as possible, need to be prepared into nanoscale, and the catalysis material of nanoscale has big specific surface area, can adsorb more Organic substance, show higher photocatalysis efficiency.But, the catalysis material of nanoscale in use also exists some defects, as readily suspended in the photocatalyst of nanoscale causes the particulate pollutant in air to increase in atmosphere, is unfavorable for that the mankind's is healthy；The photocatalyst of nanoscale is not easy to recycling after use process, causes the waste of resource.
The catalysis material of nanoscale to be made full use of, a kind of effective manner be the catalysis material of nanoscale is made coating agent after and coated and be fixed on base material.Which can give full play to catalysis material photocatalysis efficiency on nanoscale, also can reduce the harm after nano-photocatalyst material suspends caused environment, the beneficially recycling of catalysis material simultaneously.Additionally, catalysis material coating is fixed in particular substrate material, moreover it is possible to make base material have self-cleaning advantage, the oils and fats of removable substrate material surface, mould, mycete, algae, antibacterial and virus etc..
At present, the coating agent of photocatalysis of exploitation excellent performance is paid close attention to widely by people.Excellent coating agent of photocatalysis must possess following advantages: (1) coating agent of photocatalysis has efficient photocatalytic activity, especially coating and is fixed on base material the photocatalysis performance still with excellence；(2) coating agent of photocatalysis can be adhesively fixed closely on multiple base material, difficult drop-off；(3) coating agent of photocatalysis itself has the higher transparency, disperse suspending stabilized, the coating being applicable to all kinds of base material uses, and is formed without speckle, in particular for coated glazings, windshield, has the base material of high light transmission for the these requirements such as operating theater instruments observed；(4) coating processes during coating agent of photocatalysis uses is simple, it is easy to scale uses；(5) coating agent of photocatalysis itself need to have environmental protection, nontoxic advantage etc..
In view of current coating agent of photocatalysis the most all exists some defects, as the highest in catalytic efficiency, load after be prone to come off, seeking a kind of coating agent of photocatalysis with excellent performance is still a technical barrier.
Summary of the invention
In view of this, the application provides a kind of coating agent of photocatalysis, this coating agent asepsis environment-protecting, simple and easy to get, have the higher transparency, disperse suspending stabilized, photocatalysis performance is high, be prone to be tightly fastened on multiple base material.Present invention simultaneously provides method and the method for coating use of the preparation of this coating agent of photocatalysis.
The application one coating agent of photocatalysis, including: it is made up of the proportioning of following mass fraction, nano-photocatalyst 0.1 to 20 part, binding agent 0.01 to 2 part, water-soluble titanium compound 0.01 to 3 part and deionized water 100 parts.
Preferably, described coating agent of photocatalysis also comprises the metal ion that mass fraction is 0.001 to 0.2 part；The described metal ion one or several arbitrary proportion mixture in gold ion, silver ion, platinum ion, palladium ion, rhodium ion, iridium ion, copper ion, iron ion, cobalt ion, nickel ion, manganese ion, vanadium ion, chromium ion, tantalum ion, lanthanum ion, cerium ion.
Preferably, the described nano-photocatalyst one or several arbitrary proportion mixture in nano titanium oxide, nano zine oxide, nanometer iron sesquioxide, nano ferrous iron oxide, nano ferriferrous oxide, nano cuprous oxide, nano tin dioxide, nano zirconium dioxide, Nano cadmium sulphide, nano tungsten trioxide, nano-cerium oxide, nano-manganese dioxide.
Preferably, the described binding agent one or several arbitrary proportion mixture in fructose, glucose, sucrose, lactose, maltose, starch, cellulose, resin, waterglass.
Preferably, the described water-soluble titanium compound one or several arbitrary proportion mixture in metatitanic acid, metatitanic acid, titanous chloride., titanium tetrachloride, titanium tetrafluoride, titanium sulfate, titanyl sulfate, titanium peroxide, pertitanic acid, the titanium complex of peroxy, titanocenes, ammonium titanium fluoride, potassium fluotitanate.
The application also provides for the preparation method of a kind of coating agent of photocatalysis described above, including:
S1, being scattered in the described deionized water of 100 parts by the described water-soluble titanium compound of 0.01 to 3 part, stirring forms titanium compound aqueous solution；
S2, joining in the titanium compound aqueous solution that step S1 is made into by the described binding agent of 0.01 to 2 part, stirring forms the titanium compound aqueous solution containing binding agent；
S3, being joined by the described nano-photocatalyst of 0.1 to 20 part in the titanium compound aqueous solution containing binding agent that step S2 is made into, stirring is mixed evenly, and the suspension obtained is described coating agent of photocatalysis.
Preferably, in described step S3, during described stirring is mixed evenly, add the metal ion of 0.001 to 0.2 part.
The application also provides for the painting method of a kind of coating agent of photocatalysis described above, including: use dipping, blade coating, spin coating, one or more of mode that spray or sputter at the coating agent of photocatalysis described in the surface-coated of base material.
Preferably, by after coating agent of photocatalysis described in the surface-coated of described base material to the described base material heat treated being coated with coating agent of photocatalysis；Described heat treatment temperature is 200 degrees Celsius to 600 degrees Celsius；Heating treatment time is 1 hour to 24 hours.
Preferably, one or more during described base material includes body of wall, metope, floor, glass, metal, pottery, timber, naturally occurring or synthetic fiber and weaving thereof and supatex fabric.
It is an advantage of the current invention that:
1. the photocatalysis performance with excellence is fixed on base material in the described coating agent of photocatalysis coating that the application provides.
2. the described coating agent of photocatalysis that the application provides can be adhesively fixed closely on multiple base material, difficult drop-off.
3. the described coating agent of photocatalysis itself that the application provides has the higher transparency, disperses suspending stabilized.
4. the application provides the synthesis of described coating agent of photocatalysis and coating processes are simple, it is easy to large-scale production and use.
5. the described coating agent of photocatalysis itself that the application provides need to have environmental protection, nontoxic advantage.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the application, technical scheme in the embodiment of the present application will be clearly and completely described below, obviously, described embodiment is only some embodiments of the present application rather than whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art are obtained on the premise of not making creative work, all should belong to the scope of protection of the invention.
The application provides a kind of coating agent of photocatalysis, including: it is made up of the proportioning of following mass fraction, nano-photocatalyst 0.1 to 20 part, binding agent 0.01 to 2 part, water-soluble titanium compound 0.01 to 3 part and deionized water 100 parts.
When configuring described coating agent of photocatalysis, described nano-photocatalyst, described binding agent, described water-soluble titanium compound mass fraction in adding procedure, in wherein said nano-photocatalyst, described binding agent, described water-soluble titanium compound three, the addition of any component increases, other components can also increase accordingly, to obtain the described coating agent of photocatalysis preferably coating effect.Such as: described nano-photocatalyst with its lower limit amount as addition, corresponding described binding agent and described water-soluble titanium compound can also be with the lower limit amount of self as addition.
Described nano-photocatalyst can be selected from one or several the arbitrary proportion mixture in nano titanium oxide, nano zine oxide, nanometer iron sesquioxide, nano ferrous iron oxide, nano ferriferrous oxide, nano cuprous oxide, nano tin dioxide, nano zirconium dioxide, Nano cadmium sulphide, nano tungsten trioxide, nano-cerium oxide, nano-manganese dioxide.For having preferable photocatalysis effect, the particle diameter of described nano-photocatalyst can be that 2 nanometers are to 50 nanometers.
Described binding agent can be selected from one or several the arbitrary proportion mixture in fructose, glucose, sucrose, lactose, maltose, starch, cellulose, resin, waterglass.
Described water-soluble titanium compound can be selected from one or several the arbitrary proportion mixture in metatitanic acid, metatitanic acid, titanous chloride., titanium tetrachloride, titanium tetrafluoride, titanium sulfate, titanyl sulfate, titanium peroxide, pertitanic acid, the titanium complex of peroxy, titanocenes, ammonium titanium fluoride, potassium fluotitanate.
The coating agent of photocatalysis of present embodiment has the advantage that described in 1., the photocatalysis performance with excellence is fixed on base material in coating agent of photocatalysis coating.2. coating agent of photocatalysis described in can be adhesively fixed closely on multiple base material, difficult drop-off.3. coating agent of photocatalysis described in itself has the higher transparency, disperses suspending stabilized.4. described in, coating agent of photocatalysis synthesis and coating processes are simple, it is easy to large-scale production and use.5. coating agent of photocatalysis described in itself need to have environmental protection, nontoxic advantage.
In one preferably embodiment, through inventor's lot of experiments, in described coating agent of photocatalysis, add described metal ion can improve the photocatalysis efficiency of photocatalyst largely, it is possible to obtain the catalytic efficiency of visible ray, there is preferable practical application effect.Described coating agent of photocatalysis can also comprise the metal ion that mass fraction is 0.001 to 0.2 part；The described metal ion one or several arbitrary proportion mixture in gold ion, silver ion, platinum ion, palladium ion, rhodium ion, iridium ion, copper ion, iron ion, cobalt ion, nickel ion, manganese ion, vanadium ion, chromium ion, tantalum ion, lanthanum ion, cerium ion.Generally exist in the way of slaine in view of described metal ion, and then in actual applications, the mass fraction of described metal ion can be the mass fraction of slaine.
A kind of embodiment of the application also provides for the preparation method of above-mentioned coating agent of photocatalysis, and it includes following step:
S1, being scattered in the deionized water of 100 parts by the described water-soluble titanium compound of 0.01 to 3 part, stirring forms titanium compound aqueous solution；
S2, joining in the titanium compound aqueous solution that step S1 is made into by the described binding agent of 0.01 to 2 part, stirring forms the titanium compound aqueous solution containing binding agent；
S3, being joined by the nano-photocatalyst of 0.1 to 20 part in the titanium compound aqueous solution containing binding agent that step S2 is made into, stirring is mixed evenly, and the suspension obtained is described coating agent of photocatalysis.
In described step S3, the metal ion of 0.001 to 0.2 part can also be added during stirring is mixed evenly.
A kind of embodiment of the application also provides for the painting method of coating agent of photocatalysis described above, and it includes: use dipping, blade coating, spin coating, one or more of mode that spray or sputter at the coating agent of photocatalysis described in the surface-coated of base material.Described base material can include one or more in body of wall, metope, floor, glass, metal, pottery, timber, naturally occurring or synthetic fiber and weaving thereof and supatex fabric.
Further, by after coating agent of photocatalysis described in the surface-coated of described base material to described base material heat treated；Described heat treatment temperature is 200 degrees Celsius to 600 degrees Celsius；Heating treatment time is 1 hour to 24 hours.Concrete, described heating treatment time suitably can shorten along with the increase of described heat treatment temperature, and such as when with 200 degrees Celsius for described heat treatment temperature, described heating treatment time can be 24 hours.
The present patent application principle is specifically described below in conjunction with multiple embodiments.
The nano-photocatalyst used one or several arbitrary proportion mixture in nano titanium oxide, nano zine oxide, nanometer iron sesquioxide, nano ferrous iron oxide, nano ferriferrous oxide, nano cuprous oxide, nano tin dioxide, nano zirconium dioxide, Nano cadmium sulphide, nano tungsten trioxide, nano-cerium oxide, nano-manganese dioxide in following embodiment.The particle diameter of described nano-photocatalyst can be that 2 nanometers are to 50 nanometers.The binding agent used one or several arbitrary proportion mixture in fructose, glucose, sucrose, lactose, maltose, starch, cellulose, resin, waterglass.The water-soluble titanium compound used one or several arbitrary proportion mixture in metatitanic acid, metatitanic acid, titanous chloride., titanium tetrachloride, titanium tetrafluoride, titanium sulfate, titanyl sulfate, titanium peroxide, pertitanic acid, the titanium complex of peroxy, titanocenes, ammonium titanium fluoride, potassium fluotitanate.The metal ion used one or several arbitrary proportion mixture in gold ion, silver ion, platinum ion, palladium ion, rhodium ion, iridium ion, copper ion, iron ion, cobalt ion, nickel ion, manganese ion, vanadium ion, chromium ion, tantalum ion, lanthanum ion, cerium ion.One or several in body of wall, metope, floor, glass, metal, pottery, timber, naturally occurring or synthetic fiber and weaving thereof and supatex fabric of base material used.
Embodiment 1
Taking 3 grams of water-soluble titanium compounds, be scattered in the deionized water of 100 grams in the case of being stirred vigorously, continuing vigorous stirring is until forming titanium compound aqueous solution；Subsequently, adding 2 grams of binding agents in the case of being stirred vigorously in above-mentioned titanium compound aqueous solution, continuing vigorous stirring is until forming the titanium compound aqueous solution containing binding agent；Subsequently, in the case of being stirred vigorously, adding 20 grams of nano-photocatalysts in the titanium compound aqueous solution containing binding agent slowly, continuing vigorous stirs 2 hours, and the stable suspension obtained is coating agent of photocatalysis.
Embodiment 2
Taking 1 gram of water-soluble titanium compound, be scattered in the deionized water of 100 grams in the case of being stirred vigorously, continuing vigorous stirring is until forming titanium compound aqueous solution；Subsequently, adding 1 gram of binding agent in the case of being stirred vigorously in above-mentioned titanium compound aqueous solution, continuing vigorous stirring is until forming the titanium compound aqueous solution containing binding agent；Subsequently, in the case of being stirred vigorously, adding 10 grams of nano-photocatalysts in the titanium compound aqueous solution containing binding agent slowly, continuing vigorous stirs 2 hours, and the stable suspension obtained is coating agent of photocatalysis.
Embodiment 3
Taking 0.01 gram of water-soluble titanium compound, be scattered in the deionized water of 100 grams in the case of being stirred vigorously, continuing vigorous stirring is until forming titanium compound aqueous solution；Subsequently, adding 0.01 gram of binding agent in the case of being stirred vigorously in above-mentioned titanium compound aqueous solution, continuing vigorous stirring is until forming the titanium compound aqueous solution containing binding agent；Subsequently, in the case of being stirred vigorously, adding 0.1 gram of nano-photocatalyst in the titanium compound aqueous solution containing binding agent slowly, continuing vigorous stirs 2 hours, and the stable suspension obtained is coating agent of photocatalysis.
Embodiment 4
Taking 0.5 gram of water-soluble titanium compound, be scattered in the deionized water of 100 grams in the case of being stirred vigorously, continuing vigorous stirring is until forming titanium compound aqueous solution；Subsequently, adding 0.5 gram of binding agent in the case of being stirred vigorously in above-mentioned titanium compound aqueous solution, continuing vigorous stirring is until forming the titanium compound aqueous solution containing binding agent；Subsequently, in the case of being stirred vigorously, adding the metal ion salt compound of 5 grams of nano-photocatalysts and 0.02 gram in the titanium compound aqueous solution containing binding agent slowly, continuing vigorous stirs 2 hours, and the stable suspension obtained is coating agent of photocatalysis.
Embodiment 5
Arbitrary coating agent of photocatalysis in Example 1 to embodiment 4, is sprayed at substrate material surface and forms thin layer, put into after drying in baking oven, in 200 degrees Celsius of lower heat treated 24 hours, i.e. obtains coating the base material of photocatalyst.
Embodiment 6
Arbitrary coating agent of photocatalysis in Example 1 to embodiment 4, is sprayed at substrate material surface and forms thin layer, put into after drying in Muffle furnace, in 600 degrees Celsius of lower heat treated 1 hour, i.e. obtains coating the base material of photocatalyst.
Embodiment 7
Arbitrary coating agent of photocatalysis in Example 1 to embodiment 4, is sprayed at substrate material surface and forms thin layer, put into after drying in Muffle furnace, in 400 degrees Celsius of lower heat treated 8 hours, i.e. obtains coating the base material of photocatalyst.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the scope of protection of present invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (10)
1. a coating agent of photocatalysis, it is characterised in that including: be made up of the proportioning of following mass fraction, nano-photocatalyst 0.1 to 20 part, binding agent 0.01 to 2 part, water-soluble titanium compound 0.01 to 3 part and deionized water 100 parts.
2. coating agent of photocatalysis as claimed in claim 1, it is characterised in that: described coating agent of photocatalysis also comprises the metal ion that mass fraction is 0.001 to 0.2 part；The described metal ion one or several arbitrary proportion mixture in gold ion, silver ion, platinum ion, palladium ion, rhodium ion, iridium ion, copper ion, iron ion, cobalt ion, nickel ion, manganese ion, vanadium ion, chromium ion, tantalum ion, lanthanum ion, cerium ion.
3. coating agent of photocatalysis as claimed in claim 1, it is characterised in that: the described nano-photocatalyst one or several arbitrary proportion mixture in nano titanium oxide, nano zine oxide, nanometer iron sesquioxide, nano ferrous iron oxide, nano ferriferrous oxide, nano cuprous oxide, nano tin dioxide, nano zirconium dioxide, Nano cadmium sulphide, nano tungsten trioxide, nano-cerium oxide, nano-manganese dioxide.
4. coating agent of photocatalysis as claimed in claim 1, it is characterised in that: the described binding agent one or several arbitrary proportion mixture in fructose, glucose, sucrose, lactose, maltose, starch, cellulose, resin, waterglass.
5. coating agent of photocatalysis as claimed in claim 1, it is characterised in that: the described water-soluble titanium compound one or several arbitrary proportion mixture in metatitanic acid, metatitanic acid, titanous chloride., titanium tetrachloride, titanium tetrafluoride, titanium sulfate, titanyl sulfate, titanium peroxide, pertitanic acid, the titanium complex of peroxy, titanocenes, ammonium titanium fluoride, potassium fluotitanate.
6. the preparation method of a coating agent of photocatalysis as claimed in claim 1, it is characterised in that including:
S1, being scattered in the described deionized water of 100 parts by the described water-soluble titanium compound of 0.01 to 3 part, stirring forms titanium compound aqueous solution；
S2, joining in the titanium compound aqueous solution that step S1 is made into by the described binding agent of 0.01 to 2 part, stirring forms the titanium compound aqueous solution containing binding agent；
S3, being joined by the described nano-photocatalyst of 0.1 to 20 part in the titanium compound aqueous solution containing binding agent that step S2 is made into, stirring is mixed evenly, and the suspension obtained is described coating agent of photocatalysis.
7. preparation method as claimed in claim 6, it is characterised in that: in described step S3, during described stirring is mixed evenly, add the metal ion of 0.001 to 0.2 part.
8. the painting method of a coating agent of photocatalysis as claimed in claim 1, it is characterised in that including: use dipping, blade coating, spin coating, one or more of mode that spray or sputter at the coating agent of photocatalysis described in the surface-coated of base material.
9. painting method as claimed in claim 8, it is characterised in that: by after coating agent of photocatalysis described in the surface-coated of described base material to the described base material heat treated being coated with coating agent of photocatalysis；Described heat treatment temperature is 200 degrees Celsius to 600 degrees Celsius；Heating treatment time is 1 hour to 24 hours.
10. painting method as claimed in claim 8, it is characterised in that: described base material includes one or more in body of wall, metope, floor, glass, metal, pottery, timber, naturally occurring or synthetic fiber and weaving thereof and supatex fabric.
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| CN107080855A (en) * | 2017-04-28 | 2017-08-22 | 潍坊天奇新型材料有限公司 | Multifunctional air-deodorizing germicidal spray |
| CN108722435A (en) * | 2018-06-07 | 2018-11-02 | 高志远 | Five yuan are co-doped with nano-titanium dioxide modified plated film functional material, preparation and film plating process |
| CN109158101A (en) * | 2018-10-11 | 2019-01-08 | 南通纺织丝绸产业技术研究院 | A kind of doping niobium, the tantalic acid titanium-based photochemical catalyst of vanadium, preparation method and application |
| CN109437752A (en) * | 2018-12-07 | 2019-03-08 | 江西科技学院 | Photo catalytic cement based composites, preparation method and applications |
| CN109950428A (en) * | 2017-12-21 | 2019-06-28 | 成都市银隆新能源有限公司 | Battery case and its manufacturing process |
| CN113332978A (en) * | 2020-03-03 | 2021-09-03 | 夏普株式会社 | Photocatalyst coating agent and spray product |
| PL442931A1 (en) * | 2022-11-24 | 2024-05-27 | Wójcik Bernard Producent Stolarki Pcv I Al Bewi | Photocatalytic paste based on natural adhesive agents, porous photocatalytic materials for air purification from volatile organic compounds, inorganic compounds and microorganisms, and method of producing the photocatalytic paste based on natural adhesive agents and porous photocatalytic materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107080855A (en) * | 2017-04-28 | 2017-08-22 | 潍坊天奇新型材料有限公司 | Multifunctional air-deodorizing germicidal spray |
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| CN109437752A (en) * | 2018-12-07 | 2019-03-08 | 江西科技学院 | Photo catalytic cement based composites, preparation method and applications |
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| PL442931A1 (en) * | 2022-11-24 | 2024-05-27 | Wójcik Bernard Producent Stolarki Pcv I Al Bewi | Photocatalytic paste based on natural adhesive agents, porous photocatalytic materials for air purification from volatile organic compounds, inorganic compounds and microorganisms, and method of producing the photocatalytic paste based on natural adhesive agents and porous photocatalytic materials |
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