CN105694544A - Preparation method for nanometer titania/kieselguhr wall coating - Google Patents
Preparation method for nanometer titania/kieselguhr wall coating Download PDFInfo
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- CN105694544A CN105694544A CN201610023299.1A CN201610023299A CN105694544A CN 105694544 A CN105694544 A CN 105694544A CN 201610023299 A CN201610023299 A CN 201610023299A CN 105694544 A CN105694544 A CN 105694544A
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- kieselguhr
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- electron beam
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title abstract description 17
- 238000000576 coating method Methods 0.000 title abstract description 9
- 239000011248 coating agent Substances 0.000 title abstract description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000010894 electron beam technology Methods 0.000 claims abstract description 8
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005406 washing Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 5
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims abstract description 4
- 235000011130 ammonium sulphate Nutrition 0.000 claims abstract description 4
- 239000008367 deionised water Substances 0.000 claims abstract description 4
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 4
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims abstract description 4
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 4
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 238000007334 copolymerization reaction Methods 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- -1 polytetrafluoroethylene Polymers 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000001699 photocatalysis Effects 0.000 description 8
- 238000007146 photocatalysis Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000004408 titanium dioxide Substances 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 description 1
- 241000222065 Lycoperdon Species 0.000 description 1
- 241000768494 Polymorphum Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000035 biogenic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 208000026278 immune system disease Diseases 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 210000002500 microbody Anatomy 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
- C09D5/1612—Non-macromolecular compounds
- C09D5/1618—Non-macromolecular compounds inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of environment-friendly wall coatings and relates to a preparation method for a nanometer titania/kieselguhr wall coating.Specifically, the electron beam irradiation technology is adopted for preparing a composite material according to the characteristic that an electron beam changes charges on the surface of the material.Firstly, kieselguhr is dispersed in a hydrochloric acid solution; next, ammonium sulfate and titanium tetrachloride are mixed and then added into kieselguhr; after the solution is transferred into a sealed bag and copolymerized under the electron beam, silver nitrate is slowly added into the solution, filtration is performed, and repeated washing is performed with deionized water; the solution is transferred into a high pressure reactor with a polytetrafluoroethylene pad for reacting for 12 h at the temperature of 160-180 DEG C; the obtained product is filtered, washed and dried, and then the nanometer titania/kieselguhr wall coating is obtained.The prepared wall coating is environmentally friendly, simple in process and low in price, has high adsorptione activity and organic gas degradation activity, and has application value.
Description
Technical field
The preparation method that the present invention relates to a kind of nano titanium dioxide/diatomite wall covering, the present invention adopts electronic beam irradiation technology, utilizes electron beam to change the characteristic of material surface electric charge, prepares composite。The invention belongs to environmental protection wall surface technical field of coatings。
Background technology
Interior decoration (insulant, binding agent, coating and paint etc.) and daily life (cook etc. movable) are the main sources that indoor organic gas pollutes。These organic gaseous contaminations include various VOCs(volatile organic matter), formaldehyde, benzene, dimethylbenzene, dioxin etc.。Can cause a series of harm such as people's disease of immune system due to these pollutions, therefore along with growth in the living standard, people start to pay attention to the pollution control of indoor organic gas。The environmental protection wall covering of degradable indoor organic pollution gas has become one of current popular research direction。
Kieselguhr is a kind of biogenic silicastone, mainly by the siliceous remains composition of diatom and other microbodys biological (radiolitid, sponge etc.)。Its chemical composition is with SiO2It is main, containing a small amount of Al2O3、Fe2O3、CaO、MgO、K2O and organic matter etc.。Diatomaceous color is white, and Lycoperdon polymorphum Vitt or light brown etc., impurity content is more high, then the color reflected is more deep, and its microscopic appearance also has disc, aciculiform, tubular, pinniform etc. because of the difference of frustule shape。Kieselguhr has very strong absorption affinity and very big adsorption capacity, because diatom shell has micropore substantial amounts of, ordered arrangement, so that kieselguhr has very big specific surface area, its specific surface area is 3.1～60m/g, 2～2.5 hundred million/g of quantity, body volume 0.6～0.8cm/g, body includes more than 1,000 nanometer micropore, aperture 7～125nm, is natural nano material, can absorb the impurity of sole mass 3～4 times。There is the characteristic of strong absorption and high-melting-point (1600～1750 DEG C)。Its chemical stability is high, except being dissolved in Fluohydric acid., insoluble in any strong acid, is soluble in alkali。It is a kind of backing material cheap, efficient。It is again a kind of well indoor wall coating simultaneously。
Titanium dioxide is a kind of conventional catalysis material, and as stable chemical nature, cheap and easy to get, nontoxic a kind of catalysis material, titanium dioxide is studied for the photocatalysis of organic pollution, but titanium dioxide there is also some defects。The recombination rate again of the photo-generate electron-hole pair of pure titinium dioxide photocatalyst is high, and quantum efficiency is on the low side, and photocatalysis performance does not highlight。The absorption band gap of pure titinium dioxide (Detitanium-ore-type) is 3.2eV, the absorbing wavelength of its correspondence is 387nm, only with the ultraviolet portion accounting for solar spectrum scope 4%, it is the restriction practical and industrialized main cause of photocatalysis to the photo-quantum efficiency that the effective rate of utilization of sunlight is low and relatively low。Titanium dioxide and diatom ooze compound are made nano titanium oxide/diatom ooze wall covering and can effectively reduce the electron-hole recombination rate of pure titinium dioxide, increase the absorption of coating and the ability of degradation of contaminant simultaneously。Therefore, titanium dioxide and diatom ooze are carried out compound photocatalysis performance and absorption property to improving composite further and has positive meaning。Indoor organic pollution will be played the effect of catalytic degradation for indoor wall by this composite。
Summary of the invention
The preparation method that the purpose of the present invention aims to provide a kind of nano titanium dioxide/diatomite wall covering。
A kind of method preparing nano titanium dioxide/diatomite wall covering of the present invention, it is characterised in that there is following preparation process and step:
A 12g kieselguhr is dispersed in 250mL hydrochloric acid solution by (), stir 30min；
Under (b) room temperature, ammonium sulfate is put into stirring 30min in beaker with titanium tetrachloride with the ratio that mass ratio is 1:2；
C step (b) gained solution is slowly added in the solution of step (a) gained by (), continue stirring 1h；
D step (c) gained solution is transferred to and is carried out copolymerization in sealed bag under electron beam by (), irradiation dose is 40kGy；
E () solution by step (d) gained is slowly added to silver nitrate till solution no longer produces precipitate, then filters, with deionized water cyclic washing several times；
F the solution of step (e) gained is transferred in the autoclave of teflon gasket by (), react 12h at 160-180 DEG C；
G product that step (f) is obtained by () through filtering, washing, dried nano titanium dioxide/diatomite wall covering。
The present invention compared with prior art, has following remarkable advantage:
1, utilizing electron beam to change the characteristic of material surface electric charge in building-up process, when using other chemical reducing agents, the generation of the formation of nano titanium dioxide crystal and kieselguhr surface negative charge simultaneously completes, and preparation technology is simple；
2, the structure of the composite of preparation is stable further in Hydrothermal Synthesis process, and preparation process is economic and environment-friendly；
3, the nano titanium dioxide/diatomite wall covering of preparation has significantly high absorption and photocatalytic activity, is a kind of wall covering with using value。
Accompanying drawing explanation
Fig. 1 is scanning electron microscope (SEM) figure of nano titanium dioxide/diatomite wall covering。
Fig. 2 is the photocatalysis performance curve chart of nano titanium dioxide/diatomite wall covering。
Detailed description of the invention
After embodiments of the invention being specifically described in conjunction with accompanying drawing。
Embodiment 1
A 12g kieselguhr is dispersed in 250mL hydrochloric acid solution by (), stir 30min；
Under (b) room temperature, ammonium sulfate is put into stirring 30min in beaker with titanium tetrachloride with the ratio that mass ratio is 1:2；
C step (b) gained solution is slowly added in the solution of step (a) gained by (), continue stirring 1h；
D step (c) gained solution is transferred to and is carried out copolymerization in sealed bag under electron beam by (), irradiation dose is 40kGy；
E () solution by step (d) gained is slowly added to silver nitrate till solution no longer produces precipitate, then filters, with deionized water cyclic washing several times；
F the solution of step (e) gained is transferred in the autoclave of teflon gasket by (), react 12h at 160-180 DEG C；
G product that step (f) is obtained by () through filtering, washing, dried nano titanium dioxide/diatomite wall covering。
The SEM figure of Fig. 1 shows the nano titanium dioxide/diatomite wall covering of preparation。
The photocatalysis performance test of product of the present invention
Adding the benzopyrene solution that concentration is 10ppb in nano titanium dioxide/diatomite wall covering, sample is processed after reacting 1-8 hour by ultraviolet lighting, and tests with GC/MS (gas chromatograph-mass spectrometer (GC-MS))。
Fig. 2 is the photocatalysis performance curve chart of nano titanium dioxide/diatomite wall covering。
Claims (1)
1. a kind of method preparing nano titanium dioxide/diatomite wall covering of the present invention, it is characterised in that there is following preparation process and step:
A 12g kieselguhr is dispersed in 250mL hydrochloric acid solution by (), stir 30min；
Under (b) room temperature, ammonium sulfate is put into stirring 30min in beaker with titanium tetrachloride with the ratio that mass ratio is 1:2；
C step (b) gained solution is slowly added in the solution of step (a) gained by (), continue stirring 1h；
D step (c) gained solution is transferred to and is carried out copolymerization in sealed bag under electron beam by (), irradiation dose is 40kGy；
E () solution by step (d) gained is slowly added to silver nitrate till solution no longer produces precipitate, then filters, with deionized water cyclic washing several times；
F the solution of step (e) gained is transferred in the autoclave of teflon gasket by (), react 12h at 160-180 DEG C；
Product that step (f) is obtained through filtering, washing, dried nano titanium dioxide/diatomite wall covering。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610023299.1A CN105694544B (en) | 2016-01-14 | 2016-01-14 | A kind of preparation method of nano titanium dioxide/diatomite wall covering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610023299.1A CN105694544B (en) | 2016-01-14 | 2016-01-14 | A kind of preparation method of nano titanium dioxide/diatomite wall covering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105694544A true CN105694544A (en) | 2016-06-22 |
| CN105694544B CN105694544B (en) | 2018-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610023299.1A Expired - Fee Related CN105694544B (en) | 2016-01-14 | 2016-01-14 | A kind of preparation method of nano titanium dioxide/diatomite wall covering |
Country Status (1)
| Country | Link |
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| CN (1) | CN105694544B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334396A (en) * | 2016-09-24 | 2017-01-18 | 上海大学 | Method capable of inhibiting formation of NBaP in atmospheric particulates |
| CN106883643A (en) * | 2017-02-27 | 2017-06-23 | 武汉金中海高新科技有限公司 | A kind of preparation method of diatomite wall covering |
| CN108676389A (en) * | 2018-05-03 | 2018-10-19 | 宋俊芳 | A kind of diatom ooze coating and preparation method thereof of degradable formaldehyde |
Citations (3)
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|---|---|---|---|---|
| CN101658786A (en) * | 2009-09-25 | 2010-03-03 | 上海大学 | Method for preparing graphene-based titanium dioxide composite photocatalyst by radiation of electron beams |
| CN101829555A (en) * | 2010-05-26 | 2010-09-15 | 上海大学 | Method for preparing titanium dioxide/mesoporous carbon composite photocatalyst by electron beam irradiation |
| CN102039118A (en) * | 2009-10-16 | 2011-05-04 | 中国矿业大学(北京) | Preparation method of supported nano TiO2 photocatalytic material with diatomite filter aid as carrier |
-
2016
- 2016-01-14 CN CN201610023299.1A patent/CN105694544B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101658786A (en) * | 2009-09-25 | 2010-03-03 | 上海大学 | Method for preparing graphene-based titanium dioxide composite photocatalyst by radiation of electron beams |
| CN102039118A (en) * | 2009-10-16 | 2011-05-04 | 中国矿业大学(北京) | Preparation method of supported nano TiO2 photocatalytic material with diatomite filter aid as carrier |
| CN101829555A (en) * | 2010-05-26 | 2010-09-15 | 上海大学 | Method for preparing titanium dioxide/mesoporous carbon composite photocatalyst by electron beam irradiation |
Non-Patent Citations (2)
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| 王利剑等: "硅藻土负载二氧化钛复合材料的制备与光催化性能", 《硅酸盐学报》 * |
| 高如琴等: "纳米TiO2薄膜的制备与光催化性能研究", 《人工晶体学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334396A (en) * | 2016-09-24 | 2017-01-18 | 上海大学 | Method capable of inhibiting formation of NBaP in atmospheric particulates |
| CN106883643A (en) * | 2017-02-27 | 2017-06-23 | 武汉金中海高新科技有限公司 | A kind of preparation method of diatomite wall covering |
| CN108676389A (en) * | 2018-05-03 | 2018-10-19 | 宋俊芳 | A kind of diatom ooze coating and preparation method thereof of degradable formaldehyde |
| CN108676389B (en) * | 2018-05-03 | 2020-11-03 | 宋俊芳 | Diatom ooze coating capable of degrading formaldehyde and preparation method thereof |
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| Publication number | Publication date |
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| CN105694544B (en) | 2018-05-22 |
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Granted publication date: 20180522 |