CN1315732C - Production of titanium dioxide optical catalyst sol - Google Patents
Production of titanium dioxide optical catalyst sol Download PDFInfo
- Publication number
- CN1315732C CN1315732C CNB2005100611186A CN200510061118A CN1315732C CN 1315732 C CN1315732 C CN 1315732C CN B2005100611186 A CNB2005100611186 A CN B2005100611186A CN 200510061118 A CN200510061118 A CN 200510061118A CN 1315732 C CN1315732 C CN 1315732C
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- CN
- China
- Prior art keywords
- preparation
- titanium dioxide
- collosol
- optical catalyst
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 13
- 239000003054 catalyst Substances 0.000 title claims description 11
- 230000003287 optical effect Effects 0.000 title claims description 11
- 239000002904 solvent Substances 0.000 claims abstract description 23
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 claims abstract description 6
- 229910000348 titanium sulfate Inorganic materials 0.000 claims abstract description 6
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims abstract description 6
- 230000007062 hydrolysis Effects 0.000 claims abstract description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 238000007865 diluting Methods 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000012153 distilled water Substances 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 239000011022 opal Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 239000005416 organic matter Substances 0.000 abstract description 3
- 239000011521 glass Substances 0.000 abstract description 2
- 238000007146 photocatalysis Methods 0.000 abstract description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 2
- 239000011941 photocatalyst Substances 0.000 abstract 2
- 108010077805 Bacterial Proteins Proteins 0.000 abstract 1
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000002574 poison Substances 0.000 abstract 1
- 231100000614 poison Toxicity 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 8
- 230000002045 lasting effect Effects 0.000 description 4
- 230000003373 anti-fouling effect Effects 0.000 description 3
- 239000000796 flavoring agent Substances 0.000 description 3
- 235000019634 flavors Nutrition 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000012085 test solution Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001524 infective effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
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- Catalysts (AREA)
Abstract
The present invention relates to a preparation method for collosol. The aim of the present invention is to provide a preparation method for titanium dioxide photocatalyst collosol. The preparation method provided by the present invention comprises the following steps that at least a sort of titanium tetrachloride, titanium sulfate or butyl titanate is added into an alcohol diluent solvent under the stirring condition; under water bath, the mixed solution is added into a hydrolysis solvent drop by drop and stirred; the collosol is statically arranged. The titanium oxide photocatalyst collosol prepared by using the present invention is suitable for glass, ceramics, homes and public places; under the light rays of solar light, daylight lamps or ultraviolet lamps, nanometer titanium dioxide contained in the collosol has extra strong oxidizing performance which can destroy bacterial protein and decompose organic matter and harmful gas. The collosol has the advantages of no poison, no harm, no secondary pollution, obvious photocatalysis effect, simple preparing process, durable using effect, wide using field and service application.
Description
Technical field
The present invention relates to a kind of preparation method of colloidal sol, more particularly, the present invention relates to a kind of preparation method of titanium dioxide optical catalyst sol.
Background technology
Atmospheric pollution has become a big stealthy killer of people's life, obnoxious flavour severe overweight in various buildings, finishing, household, automobile and the atmosphere causes various diseases even death, and human beings'health in the also positive serious threat of the propagation of various infective bacterials, virus simultaneously.
Air purification method commonly used at present mainly contains two kinds, and the one, spray the aerosol such as air purifying preparation, the 2nd, adopt air cleaning unit to purify, but all have drawback.The former can cause secondary pollution, latter's facility investment expense height, and the decontamination effect improving of two kinds of methods is also undesirable.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of effect lasting, can be antifouling, the preparation method of germ-resistant titanium dioxide optical catalyst sol.
The preparation method of titanium dioxide optical catalyst sol provided by the invention may further comprise the steps:
(1) under agitation condition, titanium tetrachloride, titanium sulfate or butyl (tetra) titanate are added in the pure diluting solvent of 1～10 times (m/m) in wherein at least a, stir;
(2) under 5～95 ℃ of bath temperatures, the mixing solutions in the step (1) is dropwise added in the hydrolysising solvent of 1～500 times (m/m), stirred 0.5～5 hour;
(3) colloidal sol is still aging 1 hour～15 days, and is transparent until pearl opal.
Described pure diluting solvent is wherein one or more the combination of dehydrated alcohol, ethylene glycol, Virahol.
Described hydrolysising solvent is deionized water or distilled water.
When adding mixing solutions in the hydrolysising solvent, can also add mineral acid control hydrolysis speed, described mineral acid can be wherein a kind of or wherein several combination of nitric acid, hydrochloric acid, sulfuric acid, it is 1～5 that the consumption of acid is controlled at the pH value that makes colloidal sol.
Compared with prior art, the invention has the beneficial effects as follows:
The titanium dioxide optical catalyst sol that utilizes the present invention to prepare is applicable to glass, pottery, household and public place, colloidal sol is sprayed at by by behind the surface of spray, contained nano titanium oxide has superpower oxidation capacity in the colloidal sol under the light of sunlight, fluorescent lamp or ultraviolet lamp, can destroy protein of bacteria, decomposing organic matter and obnoxious flavour, can be antifouling, sterilization, from clean and purify air.Because nano titanium oxide itself does not participate in reaction, so effect is lasting.The colloidal sol that the present invention prepares has many outstanding advantages: 1, nontoxic, and do not have for the second time and pollute; 2, photochemical catalysis effect is obvious; 3, preparation process is simple; 4, use effect lasting; 5, use field, of many uses.
Embodiment
Below the present invention is further described by example.
It is as follows that the present invention prepares among the embodiment of titanium dioxide optical catalyst sol operation steps:
(1) under agitation condition, titanium tetrachloride, titanium sulfate or butyl (tetra) titanate are added in the pure diluting solvent of 1～10 times (m/m) in wherein at least a, stir;
(2) under 5～95 ℃ of bath temperatures, the mixing solutions in the step (1) is dropwise added in the hydrolysising solvent of 1～500 times (m/m), stirred 0.5～5 hour;
(3) colloidal sol is still aging 1 hour～15 days, and is transparent until pearl opal.
Alcohol diluting solvent can be dehydrated alcohol, ethylene glycol, Virahol wherein any one.
Hydrolysising solvent can be deionized water or distilled water.
When adding mixing solutions in the hydrolysising solvent, can also add mineral acid control hydrolysis speed, described mineral acid can be wherein a kind of or wherein several combination of nitric acid, hydrochloric acid, sulfuric acid, it is 1～5 that the consumption of acid is controlled at the pH value that makes colloidal sol.
Testing data among each embodiment sees the following form:
Wherein the amount of pure diluting solvent is meant the mass ratio of titanium tetrachloride, titanium sulfate or the butyl (tetra) titanate of pure diluting solvent and adding, and the amount of hydrolysising solvent is meant the mass ratio of the mixing solutions in the step (1) of hydrolysising solvent and adding.
| The specific embodiment sequence number | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Titanium tetrachloride | √ | √ | √ | √ | |||
| Titanium sulfate | √ | √ | √ | √ | |||
| Butyl (tetra) titanate | √ | √ | √ | √ | |||
| Dehydrated alcohol | √ | √ | √ | ||||
| Ethylene glycol | √ | √ | |||||
| Virahol | √ | √ | |||||
| Deionized water | √ | √ | √ | √ | |||
| Distilled water | √ | √ | √ | ||||
| The amount (m/m) of alcohol diluting solvent | 1 | 1.5 | 2.5 | 4 | 5.5 | 7.5 | 10 |
| The amount of hydrolysising solvent (m/m) | 1 | 50 | 180 | 240 | 360 | 450 | 500 |
| Hydrolysis temperature (℃) | 5 | 15 | 30 | 45 | 55 | 75 | 95 |
| Churning time (h) | 0.5 | 1 | 1.5 | 2.5 | 3 | 4.5 | 5 |
| Digestion time | 15d | 12d | 9d | 3d | 1～3h | 10h | 1d |
Use colloidal sol of the present invention all responsive to ultraviolet ray, visible light, infrared rays, daily light source all can excite its photocatalysis performance, can be verified this with testing data.For example to decompose concentration under the 125W ultraviolet light be the concrete operations of the rose-red test solution of 66mg/L to colloidal sol: the blending ratio of colloidal sol and rose-red test solution is 1: 4, ultraviolet light is more than the 10cm to the colloidal sol distance, can fully rose-red test solution be decomposed, and make it take off into colourless solution in 10～30 minutes; Perhaps above mixing solutions is positioned under the sunlight, dyestuff is faded at fine day; Perhaps mixing solutions is put in the indoor of light, dyestuff is faded.
Colloidal sol of the present invention why can be antifouling, sterilization, from clean and to purify air be because butyl (tetra) titanate is hydrolyzed to nano titanium oxide, it can have superpower oxidation capacity under light, destroy protein of bacteria, decomposing organic matter and obnoxious flavour, but itself do not participate in reaction, so effect is lasting.Before using described colloidal sol, should will be cleaned by the surface of spray earlier.
At last, it is also to be noted that what more than enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above examples of implementation, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (4)
1, a kind of preparation method of titanium dioxide optical catalyst sol may further comprise the steps:
(1) under agitation condition, titanium tetrachloride, titanium sulfate or butyl (tetra) titanate are added in the pure diluting solvent of 1～10 times (m/m) in wherein at least a, stir;
(2) under 5～95 ℃ of bath temperatures, the mixing solutions in the step (1) is dropwise added in the hydrolysising solvent of 1～500 times (m/m), stirred 0.5～5 hour;
(3) colloidal sol is still aging 1 hour～15 days, and is transparent until pearl opal.
According to the preparation method of the described titanium dioxide optical catalyst sol of claim 1, it is characterized in that 2, described pure diluting solvent is wherein one or more the combination of dehydrated alcohol, ethylene glycol, Virahol.
According to the preparation method of the described titanium dioxide optical catalyst sol of claim 1, it is characterized in that 3, described hydrolysising solvent is deionized water or distilled water.
4, according to the preparation method of the described titanium dioxide optical catalyst sol of claim 1, it is characterized in that, when adding mixing solutions in the hydrolysising solvent, can also add mineral acid control hydrolysis speed, described mineral acid can be wherein a kind of or wherein several combination of nitric acid, hydrochloric acid, sulfuric acid, and it is 1～5 that the consumption of acid is controlled at the pH value that makes colloidal sol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100611186A CN1315732C (en) | 2005-10-14 | 2005-10-14 | Production of titanium dioxide optical catalyst sol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100611186A CN1315732C (en) | 2005-10-14 | 2005-10-14 | Production of titanium dioxide optical catalyst sol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1778685A CN1778685A (en) | 2006-05-31 |
| CN1315732C true CN1315732C (en) | 2007-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100611186A Expired - Fee Related CN1315732C (en) | 2005-10-14 | 2005-10-14 | Production of titanium dioxide optical catalyst sol |
Country Status (1)
| Country | Link |
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| CN (1) | CN1315732C (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469140B (en) * | 2007-12-29 | 2012-03-07 | 比亚迪股份有限公司 | Preparation of active titanium dioxide |
| CN101606538B (en) * | 2009-07-13 | 2012-01-04 | 浙江大学 | Ag-carried nanometer titanium dioxide antimildew and antibacterial agent |
| CN102086046A (en) * | 2010-12-31 | 2011-06-08 | 东莞市明天纳米科技有限公司 | Preparation method of nano-TiO2 lyosol |
| CN102658103A (en) * | 2012-04-17 | 2012-09-12 | 太原理工大学 | Preparation method and application of high-active-dispersibility nanometer titanium dioxide |
| CN103450717B (en) * | 2013-08-27 | 2017-02-08 | 句容亿格纳米材料厂 | Preparing method and application of self-cleaning anti-fouling nanometer titanium dioxide colloid |
| CN103555008B (en) * | 2013-09-29 | 2015-12-23 | 中国海洋石油总公司 | A kind of water-based photocatalyst Clear paint |
| CN104843776A (en) * | 2015-04-02 | 2015-08-19 | 吴肖颜 | Nanometer titanium dioxide preparation method |
| CN106590083A (en) * | 2016-12-21 | 2017-04-26 | 重庆中鼎三正科技有限公司 | Preparation method of micro-optical titanium dioxide catalytic coating or device |
| CN107297214A (en) * | 2017-07-06 | 2017-10-27 | 陕西科技大学 | A kind of preparation method of the titanium dioxide composite photocatalyst of molybdenum disulfide modification |
| CN107597123A (en) * | 2017-08-30 | 2018-01-19 | 苏州罗格特光电科技有限公司 | A kind of preparation method and application of titanium nickel optoelectronic film |
| CN108546474A (en) * | 2018-02-05 | 2018-09-18 | 佛山市嘉柏丽涂料有限公司 | A kind of photocatalysis Sun-proof titanium dioxide marble lacquer and preparation method thereof |
| CN110451560B (en) * | 2019-08-19 | 2022-05-31 | 聊城大学 | Spinous spherical TiO2Green preparation method and use |
| CN110668538B (en) * | 2019-09-20 | 2021-10-22 | 济南大学 | Preparation method of titanium polychloride |
| CN112694122A (en) * | 2020-12-14 | 2021-04-23 | 浙江大学温州研究院 | Preparation method of granular titanium dioxide sol |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1563212A (en) * | 2004-03-15 | 2005-01-12 | 张穗新 | Multiplayer composite type micro, nano coating material possessing function of purifying air and usage |
| CN1583888A (en) * | 2004-06-16 | 2005-02-23 | 武汉大学 | Preparing method for 3-lonm titania TiO2 nanometer crystal optical catalyst coating |
| CN1666815A (en) * | 2004-03-11 | 2005-09-14 | 曾庆琳 | Anatase type nanometer titanium dioxide with photcatalytst disinfecting ability |
-
2005
- 2005-10-14 CN CNB2005100611186A patent/CN1315732C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1666815A (en) * | 2004-03-11 | 2005-09-14 | 曾庆琳 | Anatase type nanometer titanium dioxide with photcatalytst disinfecting ability |
| CN1563212A (en) * | 2004-03-15 | 2005-01-12 | 张穗新 | Multiplayer composite type micro, nano coating material possessing function of purifying air and usage |
| CN1583888A (en) * | 2004-06-16 | 2005-02-23 | 武汉大学 | Preparing method for 3-lonm titania TiO2 nanometer crystal optical catalyst coating |
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| Publication number | Publication date |
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| CN1778685A (en) | 2006-05-31 |
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Assignee: Zhejiang Kaier Industry Co., Ltd. Assignor: Zhejiang University Contract fulfillment period: 2008.2.1 to 2014.1.31 Contract record no.: 2008330002222 Denomination of invention: Production of titanium dioxide optical catalyst sol Granted publication date: 20070516 License type: Exclusive license Record date: 20081121 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.2.1 TO 2014.1.31; CHANGE OF CONTRACT Name of requester: ZHEJIANG PROVINCE KAIER INDUSTRY CO., LTD. Effective date: 20081121 |
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