CN1559671A - Manufacturing method of porous titanium dioxide - Google Patents
Manufacturing method of porous titanium dioxide Download PDFInfo
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- CN1559671A CN1559671A CNA2004100136050A CN200410013605A CN1559671A CN 1559671 A CN1559671 A CN 1559671A CN A2004100136050 A CNA2004100136050 A CN A2004100136050A CN 200410013605 A CN200410013605 A CN 200410013605A CN 1559671 A CN1559671 A CN 1559671A
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Abstract
A process for preparing porous TiO2 by firmly attaching TiO2 nanoparticles to porous particle includes such steps as proportionally mixing nano-TiO2, polyalkyl siloxane, polyacrylate and water to obtain TiO2 suspension, immersing the porous particles (porous silica gel, porous apatite, porous ceramic, or porous alumina) in it, and baking.
Description
Technical field the present invention relates to the manufacture method of porous titanium dioxide, and the titanium dioxide that this method makes is used to remove airborne organic matter and water treatment.
The optically catalytic TiO 2 technology that experiment showed, that background technology is a large amount of is a more convenient technology efficiently in the various schemes that organic pollution, sewage quality are handled in the decomposition air.By with titanium dichloride load to the porous solid, be to improve one of photocatalysis efficiency approach to enlarge effective catalytic Contact area.The method that is used to form carried titanium dioxide at present has sintering process, gel method, sedimentation etc., and as patent CN1438061A, not only energy consumption is big, cost is high for CN1451473A, complex process but also be difficult for to produce in batches.
Summary of the invention the purpose of this invention is to provide a kind of prior art deficiency that overcomes, utilize the effect of chemical analysis in the tio_2 suspension, titanium dioxide is loaded on the porous solid securely, thereby make porous titanium dioxide manufacture method, have the advantages that technology is simple, energy consumption is little, cost is low.
The object of the present invention is achieved like this, chooses following material earlier and fully mix by weight proportion separately, makes tio_2 suspension: titanium dioxide granule size 0.5-80 nanometer, and content is at 0.1%-30%; Poly-alkylsiloxane 0.1%-10%; Polyacrylate 0.1%-20%; Water 40%-99%.
In porous particles such as Bio-sil, porous apatite, porous ceramics or the porous aluminium oxide one or more are immersed in the above-mentioned dioxy titanium suspension, fully flood; Or above-mentioned suspension is sprayed on the porous particle surface, the porous particle drying after will handling at last.Can be chosen in drying between 80 ℃ to 800 ℃, some dry times weak points are then heightened temperature, otherwise turn down, and depend on temperature drying time, generally select between 2 hours to 24 hours.
The specific embodiment further specifies below in conjunction with example for representing feature of the present invention and advantage better:
Example 1. is the titanium dioxide of 2-10 nanometer by weight restraining granular sizes with 10; Polymethyl siloxane 15 grams; PMA 20 grams; Water 955 grams add up to 1000 grams, mix under vigorous stirring.Silochrom grain 100 grams are immersed in the above-mentioned dioxy titanium suspension, flood after 10 hours, with the silochrom behind the dipping, freeze-day with constant temperature is 3 hours under 120 ℃ of temperature, is finished product after the cooling.
Example 2. is the titanium dioxide of 2-10 nanometer by weight restraining granular sizes with 40; Polymethyl siloxane 50 grams; PMA 80 grams; Water 830 grams add up to 1000 grams, mix under vigorous stirring.Silochrom grain 200 grams are immersed in the above-mentioned dioxy titanium suspension, flood after 10 hours, with the silochrom behind the dipping, freeze-day with constant temperature is 20 hours under 80 ℃ of temperature, is finished product after the cooling.
Example 3. is the titanium dioxide of 24 nanometers by weight restraining mean particle size with 1; Polymethyl siloxane 1.5 grams; Polyethyl acrylate 2 grams; Water 95.5 grams add up to 100 grams, mix under vigorous stirring.Above-mentioned suspension is sprayed on the 386 gram Bio-sils, and with the Bio-sil after the spraying, freeze-day with constant temperature is 3.5 hours under 120 ℃ of temperature, is finished product after the cooling.
Example 4. is the titanium dioxide of 24 nanometers by weight restraining mean particle sizes with 5; Polymethyl siloxane 8 grams; Polyethyl acrylate 10 grams; Water 977 grams add up to 1000 grams, mix under vigorous stirring.Porous porous apatite 300 grams are immersed in the above-mentioned dioxy titanium suspension, flood after 24 hours, with the porous alundum (Al behind the dipping, freeze-day with constant temperature is 3.5 hours under 430 ℃ of temperature, is finished product after the cooling.
Claims (4)
1. the manufacture method of a poriferous titanium dioxide is characterized in that step is as follows:
(1) preparation of tio_2 suspension;
(2) porous particles is immersed in and contains in the tio_2 suspension, or tio_2 suspension is sprayed on the porous particles;
(3) the porous particles oven dry of (2) being handled.
2. by the described method of claim 1, tio_2 suspension is characterized in that: titanium dioxide granule size 0.5-80 nanometer, and content is at 0.1%-30%; Poly-alkylsiloxane 0.1%-10%; Polyacrylate 0.1%-20%; Water 40%-99%.
3. by the described method of claim 1, porous particles be characterized as following one or more: Bio-sil, porous apatite, porous ceramics or porous aluminium oxide.
4. by the described method of claim 1, the porous particles oven dry be is characterized in that: drying time: 2-24 hour, baking temperature: 80 ℃-800 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100136050A CN1559671A (en) | 2004-03-08 | 2004-03-08 | Manufacturing method of porous titanium dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100136050A CN1559671A (en) | 2004-03-08 | 2004-03-08 | Manufacturing method of porous titanium dioxide |
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| Publication Number | Publication Date |
|---|---|
| CN1559671A true CN1559671A (en) | 2005-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2004100136050A Pending CN1559671A (en) | 2004-03-08 | 2004-03-08 | Manufacturing method of porous titanium dioxide |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100423791C (en) * | 2006-04-05 | 2008-10-08 | 四川大学 | Bioactivity, porous nanometer titanium oxide ceramic used for sclerous tissues restoration and its prepn. method |
| CN100455353C (en) * | 2007-03-09 | 2009-01-28 | 湖南泰鑫瓷业有限公司 | Production of ceramic carrier for nanometer reinforced catalyst |
| CN106747597A (en) * | 2016-11-30 | 2017-05-31 | 南京悠谷知识产权服务有限公司 | A kind of crystalline ceramics and preparation method for covering titanium oxide for being applied to sewage disposal |
| CN107973391A (en) * | 2016-10-25 | 2018-05-01 | Sk仁川石油化学株式会社 | Handle the method and its equipment of spent lye |
-
2004
- 2004-03-08 CN CNA2004100136050A patent/CN1559671A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100423791C (en) * | 2006-04-05 | 2008-10-08 | 四川大学 | Bioactivity, porous nanometer titanium oxide ceramic used for sclerous tissues restoration and its prepn. method |
| CN100455353C (en) * | 2007-03-09 | 2009-01-28 | 湖南泰鑫瓷业有限公司 | Production of ceramic carrier for nanometer reinforced catalyst |
| CN107973391A (en) * | 2016-10-25 | 2018-05-01 | Sk仁川石油化学株式会社 | Handle the method and its equipment of spent lye |
| CN106747597A (en) * | 2016-11-30 | 2017-05-31 | 南京悠谷知识产权服务有限公司 | A kind of crystalline ceramics and preparation method for covering titanium oxide for being applied to sewage disposal |
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