CN105772111A - Nano-photocatalyst, coating body and preparation method of the coating body - Google Patents
Nano-photocatalyst, coating body and preparation method of the coating body Download PDFInfo
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- CN105772111A CN105772111A CN201610124035.5A CN201610124035A CN105772111A CN 105772111 A CN105772111 A CN 105772111A CN 201610124035 A CN201610124035 A CN 201610124035A CN 105772111 A CN105772111 A CN 105772111A
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- alginate
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- base material
- catalytic
- photocatalyst
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- 239000011941 photocatalyst Substances 0.000 title claims abstract description 55
- 238000000576 coating method Methods 0.000 title claims abstract description 23
- 239000011248 coating agent Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 235000010443 alginic acid Nutrition 0.000 claims abstract description 57
- 229920000615 alginic acid Polymers 0.000 claims abstract description 57
- 230000001699 photocatalysis Effects 0.000 claims abstract description 48
- 239000002245 particle Substances 0.000 claims abstract description 46
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229940072056 alginate Drugs 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000006185 dispersion Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 239000007864 aqueous solution Substances 0.000 claims abstract description 18
- 239000000783 alginic acid Substances 0.000 claims abstract description 12
- 229960001126 alginic acid Drugs 0.000 claims abstract description 12
- 150000004781 alginic acids Chemical class 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 9
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical group CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 9
- 235000010413 sodium alginate Nutrition 0.000 claims description 9
- 239000000661 sodium alginate Substances 0.000 claims description 9
- 229940005550 sodium alginate Drugs 0.000 claims description 9
- 239000012736 aqueous medium Substances 0.000 claims description 8
- 238000004528 spin coating Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000728 ammonium alginate Substances 0.000 claims description 3
- 235000010407 ammonium alginate Nutrition 0.000 claims description 3
- KPGABFJTMYCRHJ-YZOKENDUSA-N ammonium alginate Chemical compound [NH4+].[NH4+].O1[C@@H](C([O-])=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C([O-])=O)O[C@@H](O)[C@@H](O)[C@H]1O KPGABFJTMYCRHJ-YZOKENDUSA-N 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 235000010408 potassium alginate Nutrition 0.000 claims description 3
- 239000000737 potassium alginate Substances 0.000 claims description 3
- MZYRDLHIWXQJCQ-YZOKENDUSA-L potassium alginate Chemical compound [K+].[K+].O1[C@@H](C([O-])=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C([O-])=O)O[C@@H](O)[C@@H](O)[C@H]1O MZYRDLHIWXQJCQ-YZOKENDUSA-L 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000007146 photocatalysis Methods 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000002904 solvent Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 17
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000007774 longterm Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000012620 biological material Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/58—Fabrics or filaments
- B01J35/59—Membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0219—Coating the coating containing organic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The invention relates to the field of photocatalysis technology, and discloses a nano-photocatalyst, a coating body coated with the nano-photocatalyst and a preparation method of the coating body.The nano-photocatalyst comprises alginate, waterborne media and photocatalyst particles with the diameter below 100 nanometers.The coating body comprises base material and the above mentioned nano-photocatalyst which is coated on the surface of the base material to form a photocatalyst film.The preparation method of the coating body comprises the following steps: Utilizing the waterborne media to respectively prepare photocatalyst particle dispersion liquid and alginic acid aqueous solution; coating the alginic acid aqueous solution on the base material; and coating the photocatalyst particle dispersion liquid on the base material to form the photocatalyst film after drying process.The coating body, coated with the nano-photocatalyst, prepared with this preparation method of the coating body can resist solvents and humid, and has long-time reliability.
Description
Technical field
The present invention relates to photocatalysis field, particularly to the preparation method of a kind of nano photo-catalytic, coated-body and coated-body.
Background technology
After 1967 " this Duo Teng island effect " is found, photocatalysis catalyst starts to be known from.So-called photocatalysis, refers to that photocatalysis catalyst is after being subject to the ultraviolet radiation of sunlight or fluorescence lamp, and it is internally formed electron hole pair excitation, produces have Strong oxdiative degrading activity hydrogen-oxygen (hydroxyl) base atomic group.Under the effect of light, these atomic groups can be degraded the almost all of Organic substance being attached to photocatalysis catalyst surface.
After calendar year 2001, the Related product of photocatalysis technology formally enters family daily life, and in short six months, sweeps across rapidly America and Europe and Southeast Asia developed countries and regions, become one of important consumer products of family, and the miraculous speed increase with annual 4.6%.
Photocatalysis catalyst is made to play effect, except this requirement in lattice structure of the photocatalyst particles in the requirement and photocatalysis catalyst of the light as trigger condition, in addition it is also necessary to meet following several condition:
One, the mean diameter of photocatalyst particles need within 100 nanometers, and particle diameter is more little, and specific surface area is more big, react more intensive effectively.
Its two, photocatalyst particles need effectively disperseed.Owing to nanometer colloid is susceptible to reunite, once reunite, its specific surface area reduces rapidly, will be substantially reduced the general activity of photocatalysis catalyst.
Its three, photocatalyst particles need be attached on base material firmly.If cannot be firmly attached, its service life will be substantially reduced.But, when selecting traditional polymer adhesive, owing to these polymer adhesives can be attached to photocatalyst particles surface, promote the reunion of photocatalyst particles in turn, reduce the result of use of photocatalysis catalyst.Additionally, traditional polymer adhesive is difficult to opposing solvent and wet environment, long-term reliability is not good.
Summary of the invention
The preparation method that it is an object of the invention to provide a kind of nano photo-catalytic, coated-body and coated-body, utilizes the coated-body being coated with this nano photo-catalytic prepared by the preparation method of this coated-body, it is possible to opposing solvent and humidity, has long-term reliability.
In order to solve above-mentioned technical problem, embodiments of the present invention provide a kind of nano photo-catalytic, comprise alginate, aqueous medium and the mean diameter photocatalyst particles below 100 nanometers.
Meanwhile, embodiments of the present invention additionally provide a kind of coated-body, comprise base material and above-mentioned nano photo-catalytic, and nano photo-catalytic is applied to substrate surface, form photo-catalyst film.
The empirical formula of alginic acid is (C6H8O6) n, there is good film property, and inviscid after the drying.The bad dissolubility of alginic acid makes it possess the ability of outstanding opposing solvent and humidity after film forming, is conducive to improving the long-term reliability of product, and when using as adhesive, the reunion of nano photo-catalytic is affected less by it.Additionally, alginate has biocompatibility, therefore prepared photocatalyst film can also be applied at biological and medical field.Embodiments of the present invention by adding alginate in nano photo-catalytic, and utilizes aqueous medium to mix, and improves the adhesion between nano photo-catalytic and base material with this.Further, owing to technical process can carry out in room temperature, for the prior art that some employing calcine technology sticks film forming, the selection face of base material is more extensive, has better wide usage with this.
As preferably, the mean diameter of photocatalyst particles is between 2 nanometers to 50 nanometers.For excellent between 2 nanometers to 10 nanometers.Its mean diameter is more little, and specific surface area is more big, and activity is also more strong.Considering cost and practical function, the mean diameter of photocatalyst particles is more satisfactory numerical value between 2 nanometers to 50 nanometers.
As preferably, alginate mass fraction shared by nano photo-catalytic is 0.1% to 3%.The mass fraction controlling alginate can efficiently control the final film forming thickness of alginate aqueous solution.
As preferably, alginate can be sodium alginate, potassium alginate, ferric alginate, alginic acid magnesium, alginic acid zinc, ammonium alginate or its combination in any.Available alginate has multiple, and wherein simple with the preparation of sodium alginate, cost is the cheapest, therefore recommends the most.
As preferably, base material is timber.Owing to existing adhesive is usually macromolecular material, not only not there is good biocompatibility, and easily come off after being combined with timber yet.Present embodiment, by selecting alginate as adhesive, improves biocompatibility so that nano photo-catalytic is not only able to application on the surface of timber, but also can apply among biomaterial, it is achieved that with the seamless connection of tradition family product.
The preparation method that embodiments of the present invention additionally provide a kind of coated-body, comprises the steps of:
Aqueous medium is utilized to prepare photocatalyst particles dispersion liquid and alginate aqueous solution respectively；
Base material is coated with alginate aqueous solution；
Base material is coated with photocatalyst particles dispersion liquid, dry, form photo-catalyst film.
For coating after alginate aqueous solution and photocatalyst particles dispersion liquid are mixed, embodiments of the present invention are by successively coating alginate aqueous solution and photocatalyst particles dispersion liquid, not only can improve the effective active area of photocatalyst particles dispersion liquid better, and water-laid film technique can be adopted, add technique washability.
As preferably, the thickness of alginate aqueous solution coating is 2 nanometers to 0.1 millimeter.Its preferred thickness is 0.5 micron and following.Cross thin thickness and cannot ensure adhesiveness, and blocked up thickness is likely to be wrapped in alginate-coated layer so that photocatalyst particles, affects photocatalysis performance.
As preferably, in drying steps, also comprise following sub-step:
Photocatalyst particles dispersion liquid passes through heat drying, forms photo-catalyst film, and during heating, the surface temperature of base material is more than or equal to 60 degrees Celsius and less than or equal to 90 degrees Celsius.Heat at the temperature lower than water boiling point, it is possible to prevent the base material of some non-refractories to be destroyed, expand the optional scope of base material.Further, the temperature more than 60 degrees Celsius can effectively facilitate the dry of dispersion liquid, improves film forming efficiency.
As preferably, coating method is spin coating, and the rotating speed of base material is more than 2000 revs/min.Adopt high speed spin coating can promote the dispersion of photocatalytic particle so that the structure of bilayer film is more uniformly coated with.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the preparation method of third embodiment of the invention coated-body.
Detailed description of the invention
Embodiment one
First embodiment of the present invention provides a kind of nano photo-catalytic, comprises alginate, aqueous medium and the mean diameter photocatalyst particles below 100 nanometers.
In the present embodiment, the mean diameter of photocatalyst particles is between 2 nanometers to 50 nanometers.For more excellent between 2 nanometers to 10 nanometers.Its mean diameter is more little, and specific surface area is more big, and activity is also more strong.Considering cost and practical function, the mean diameter of photocatalyst particles is more satisfactory numerical value between 2 nanometers to 50 nanometers.
The degradation efficiency (namely activity) that definition particle diameter is the photocatalytic particle Pyrogentisinic Acid of 50 nanometers is 1.By testing, following table gives the activity value in 2 to 50 nanometers of intervals under equal conditions, as follows as comparison:
| Photocatalytic particle particle diameter | Activity |
| 2 | 11.2 |
| 5 | 4.7 |
| 10 | 1.5 |
| 30 | 1.1 |
| 50 | 1.0 |
Can finding out from upper table, when particle diameter is lower than 10 nanometers, the activity of photocatalytic particle obtains and is substantially increased, and, activity and size remain negative correlation.
The empirical formula of alginic acid is (C6H8O6) n, there is good film property, and inviscid after the drying.The bad dissolubility of alginic acid makes it possess the ability of outstanding opposing solvent and humidity after film forming, is conducive to improving the long-term reliability of product, and when using as adhesive, the reunion of nano photo-catalytic is affected less by it.Additionally, alginate has biocompatibility, therefore prepared photocatalyst film can also be applied at biological and medical field.Present embodiment by adding alginate in nano photo-catalytic, and utilizes aqueous medium to mix, and improves the adhesion between nano photo-catalytic and base material with this.Further, owing to technical process can carry out in room temperature, for the prior art that some employing calcine technology sticks film forming, the selection face of base material is more extensive, has better wide usage with this.In the present embodiment, the mass fraction shared in nano photo-catalytic of alginate is 0.1% to 3%, the scope being more highly preferred to 0.5% to 2%, most preferably 1%.The mass fraction controlling alginate can efficiently control the final film forming thickness of alginate aqueous solution.And alginate can be sodium alginate, potassium alginate, ferric alginate, alginic acid magnesium, alginic acid zinc, ammonium alginate or its combination in any.Available alginate has multiple, and wherein simple with the preparation of sodium alginate, cost is the cheapest, therefore recommends the most.
In the following table, the photocatalytic particle selecting mean diameter to be 2 nanometers, respectively with several sodium alginate solns of 0.1% to 3% mass fraction, and traditional polyorganosiloxane resin mixing also film forming, control equal and relatively each film the activity of film forming thickness and scratch resistance number of times.Wherein, scratch resistance number of times the scraping to the required number of times that lost efficacy in scraper of the same race and uniform pressure that be each film, and the activity taking polyorganosiloxane resin is 1.
| The mass fraction of sodium alginate | Activity | Scratch resistance number of times |
| 0.1% | 18.6 | 1892 |
| 0.5% | 9.1 | 3811 |
| 1.0% | 4.1 | 5152 |
| 2.0% | 1.7 | 7680 |
| 3.0% | 0.8 | 9986 |
| Polyorganosiloxane resin | 1.0 | 3127 |
As seen from the above table, the sodium alginate soln of suitable concentration is adopted, in terms of existing technologies, it is possible to be maintained with even improving photocatalytic activity what improve the scratch resistance number of times after film forming.When taking into account resistance to scraping ability and activity, the sodium alginate selecting 1% mass fraction is optimal choice.And it is possible to choose the alginate solution of different quality mark in different occasions.Such as, on surface that is indoor and that infrequently rubbed, such as metope, ceiling etc., it is possible to select the alginate solution (0.1%～0.5%) of lower concentration, and at conventional surface, such as automotive trim, the photocatalysis board of depurator, it is possible to select the alginate solution of about 0.5, further, on outdoor or the surface frequently suffering from friction, then can improve the concentration of alginate solution further, and improve overall catalytic ability by increasing coated area.
Embodiment two
Second embodiment of the present invention provides a kind of coated-body, comprises the nano photo-catalytic described in base material and the first embodiment, and nano photo-catalytic is applied to substrate surface, forms photo-catalyst film.
In the present embodiment, base material is timber.Owing to existing adhesive is usually macromolecular material, not only not there is good biocompatibility, and easily come off after being combined with timber yet.Present embodiment, by selecting alginate as adhesive, improves biocompatibility so that nano photo-catalytic is not only able to application on the surface of timber, but also can apply among biomaterial, it is achieved that with the seamless connection of tradition family product.
Embodiment three
The preparation method that 3rd embodiment of the present invention provides a kind of coated-body, comprises the steps of:
Aqueous medium is utilized to prepare photocatalyst particles dispersion liquid and alginate aqueous solution respectively.
Base material is coated with alginate aqueous solution.Wherein, the thickness of alginate aqueous solution coating is 2 nanometers to 0.1 millimeter.Its preferred thickness is 0.5 micron and following.Cross thin thickness and cannot ensure adhesiveness, and blocked up thickness is likely to be wrapped in alginate-coated layer so that photocatalyst particles, affects photocatalysis performance.
Base material is coated with photocatalyst particles dispersion liquid, dry, form photo-catalyst film.
For coating after alginate aqueous solution and photocatalyst particles dispersion liquid are mixed, present embodiment is by successively coating alginate aqueous solution and photocatalyst particles dispersion liquid, not only can improve the effective active area of photocatalyst particles dispersion liquid better, and water-laid film technique can be adopted, add technique washability.Additionally, due to alginate aqueous solution and photocatalyst particles dispersion liquid be not through premixing, so the reunion of photocatalyst particles dispersion liquid will not be caused in advance.
In the present embodiment, coating method can be spin coating, and the rotating speed of base material is more than 2000 revs/min.Adopt high speed spin coating can promote the dispersion of photocatalytic particle so that the structure of bilayer film is more uniformly coated with.Certainly, coating method can also select other coating methods such as spraying, blade coating, and the actual speed of spin coating can also adjust according to demand, and this has no effect on the realization of goal of the invention of the present invention.
Embodiment four
The preparation method that 4th embodiment of the present invention provides a kind of coated-body, the 4th embodiment is the further improvement of the 3rd embodiment, mainly thes improvement is that, in the 4th embodiment of the present invention, in drying steps, also comprises following sub-step:
Photocatalyst particles dispersion liquid passes through heat drying, forms photo-catalyst film, and during heating, the surface temperature of base material is more than or equal to 60 degrees Celsius and less than or equal to 90 degrees Celsius.By heating the dry rate that can improve dispersion liquid.And heat at the temperature lower than water boiling point, it is possible to prevent the base material of some non-refractories to be destroyed, expand the optional scope of base material.Further, the temperature more than 60 degrees Celsius can effectively facilitate the dry of dispersion liquid, improves film forming efficiency.
Specifically, in the present embodiment, owing to having selected this temperature range, it is not necessary to traditional calcining heating technique, therefore base material can select the material that biocompatibility is better and heat resistance is poor, for instance timber, metal, alloy, plastics etc..
Claims (10)
1. a nano photo-catalytic, it is characterised in that comprise alginate, aqueous medium and the mean diameter photocatalyst particles below 100 nanometers.
2. nano photo-catalytic according to claim 1, it is characterised in that: the mean diameter of described photocatalyst particles is between 2 nanometers to 50 nanometers.
3. nano photo-catalytic according to claim 1, it is characterised in that: described alginate mass fraction shared by described nano photo-catalytic is 0.1% to 3%.
4. nano photo-catalytic according to claim 1, it is characterised in that: described alginate is sodium alginate, potassium alginate, ferric alginate, alginic acid magnesium, alginic acid zinc, ammonium alginate or its combination in any.
5. a coated-body, it is characterised in that comprise the nano photo-catalytic described in any one in base material and Claims 1-4, described nano photo-catalytic is applied to described substrate surface, forms photo-catalyst film.
6. coated-body according to claim 5, it is characterised in that: described base material is timber.
7. the preparation method of a coated-body, it is characterised in that comprise the steps of:
Aqueous medium is utilized to prepare photocatalyst particles dispersion liquid and alginate aqueous solution respectively；
Base material is coated with described alginate aqueous solution；
It is coated with described photocatalyst particles dispersion liquid on the substrate, dry, form photo-catalyst film.
8. the preparation method of coated-body according to claim 7, it is characterised in that: the thickness of described alginate aqueous solution coating is 2 nanometers to 0.1 millimeter.
9. the preparation method of coated-body according to claim 7, it is characterised in that: in described drying steps, also comprise following sub-step:
Described photocatalyst particles dispersion liquid passes through heat drying, forms described photo-catalyst film, and during heating, the surface temperature of described base material is more than or equal to 60 degrees Celsius and less than or equal to 90 degrees Celsius.
10. the preparation method of coated-body according to claim 7, it is characterised in that: described coating method is spin coating, and the rotating speed of described base material is more than 2000 revs/min.
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| CN201610124035.5A CN105772111A (en) | 2016-03-04 | 2016-03-04 | Nano-photocatalyst, coating body and preparation method of the coating body |
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| CN201610124035.5A CN105772111A (en) | 2016-03-04 | 2016-03-04 | Nano-photocatalyst, coating body and preparation method of the coating body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114602552A (en) * | 2022-04-18 | 2022-06-10 | 中国科学院过程工程研究所 | Photocatalytic composite membrane and preparation method and application thereof |
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|---|---|---|---|---|
| JP2001139891A (en) * | 1999-11-11 | 2001-05-22 | Sogo Giken:Kk | Coating agent and coating technique for forming photocatalytic functional surface on organic substrate |
| CN1827225A (en) * | 2006-04-07 | 2006-09-06 | 南京工业大学 | Method for preparing TiO2 photocatalytic film doped with non-metallic element |
| CN101579643A (en) * | 2009-06-11 | 2009-11-18 | 湖州师范学院 | Sol-gel in situ preparation method of titanium dioxide nano powder coated with alginate |
| CN103204634A (en) * | 2013-03-15 | 2013-07-17 | 北京科技大学 | Method for manufacturing semiconductor sulfide biopolymer nano-composite film |
| CN103464217A (en) * | 2013-09-13 | 2013-12-25 | 天津工业大学 | Alginate-based composite hydrogel catalytic membrane of renewable catalyst and preparation method thereof |
-
2016
- 2016-03-04 CN CN201610124035.5A patent/CN105772111A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001139891A (en) * | 1999-11-11 | 2001-05-22 | Sogo Giken:Kk | Coating agent and coating technique for forming photocatalytic functional surface on organic substrate |
| CN1827225A (en) * | 2006-04-07 | 2006-09-06 | 南京工业大学 | Method for preparing TiO2 photocatalytic film doped with non-metallic element |
| CN101579643A (en) * | 2009-06-11 | 2009-11-18 | 湖州师范学院 | Sol-gel in situ preparation method of titanium dioxide nano powder coated with alginate |
| CN103204634A (en) * | 2013-03-15 | 2013-07-17 | 北京科技大学 | Method for manufacturing semiconductor sulfide biopolymer nano-composite film |
| CN103464217A (en) * | 2013-09-13 | 2013-12-25 | 天津工业大学 | Alginate-based composite hydrogel catalytic membrane of renewable catalyst and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114602552A (en) * | 2022-04-18 | 2022-06-10 | 中国科学院过程工程研究所 | Photocatalytic composite membrane and preparation method and application thereof |
| CN114602552B (en) * | 2022-04-18 | 2023-12-15 | 中国科学院过程工程研究所 | Photocatalytic composite film and preparation method and application thereof |
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