CN1343530A - Process for preparing TiO2 photocatalyst - Google Patents
Process for preparing TiO2 photocatalyst Download PDFInfo
- Publication number
- CN1343530A CN1343530A CN 00125293 CN00125293A CN1343530A CN 1343530 A CN1343530 A CN 1343530A CN 00125293 CN00125293 CN 00125293 CN 00125293 A CN00125293 A CN 00125293A CN 1343530 A CN1343530 A CN 1343530A
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- titanium
- titanium dioxide
- preparing
- oxidation furnace
- optical catalyst
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Abstract
A TiO2 photocatalyst is prepared from cold-rolled industrial-purity Ti sheet through washing to remove oil, heating to 600-700 deg.C in oxidizing furnace containing the mixture of nitrogen gas and water vapour in volume ratio of 5:1, keeping said temp for 8-10 hrs, and cooling. Its advantages are high specific surface area greater than 200 sq.m/g and high stability.
Description
The present invention relates to the technology of preparing of a kind of photochemical catalyst, particularly a kind of titanium dioxide optical catalyst.Belong to material and photocatalysis field.
Be to adopt solution chemistry method or gas phase chlorination oxidizing process to prepare titanium dioxide optical catalyst at present both at home and abroad.
The technology of preparing that the purpose of this invention is to provide a kind of titanium deoxide catalyst.
The object of the present invention is achieved like this: place inert gas to add the atmosphere of steam and be heated to uniform temperature with the metal of industrially pure titanium, the insulation certain hour carries out the titanium dioxide optical catalyst that obtains after the oxidation processes.
Concrete enforcement of the present invention is provided by following examples and accompanying drawing thereof.
Fig. 1 is the preparation flow schematic diagram of the technology of preparing of a kind of titanium dioxide optical catalyst of proposition according to the present invention.
Describe the concrete enforcement and the working condition of the technology of preparing of a kind of titanium dioxide that proposes according to the present invention in detail below in conjunction with Fig. 1.
Adopt cold rolling attitude industrially pure titanium plate or titanium bits 1 behind the washer 2 that deoils, putting into oxidation furnace 3 handles, oxidation furnace 3 is the mist that nitrogen adds steam by atmosphere, nitrogen is 5: 1 with mixed volume ratio with steam, oxidation furnace 3 is heated to 600 to 700 ℃, be incubated 8 to 10 hours, taking-up can obtain titanium dioxide optical catalyst after oxidation furnace 3 coolings.Its pattern of the titanium dioxide optical catalyst that makes is the palpus shape, and its diameter is in 10 to 200 nanometers, and its length is between 10 to 100 microns; The titanium dioxide optical catalyst that makes is grown directly upon on Titanium version or the titanium bits 1, helps further making the catalytic purification device; After perhaps extracting the good titanium dioxide of having grown, consider the new titanium dioxide optical catalyst of 1 cocycle repetition regrowth to be worth doing at metallic titanium plate or titanium; If add other metal ion, but the modification of photocatalyst is handled.In addition, it is big that the titanium dioxide optical catalyst that the present invention prepares has specific area, greater than 200m
2/ gram, stability is high, and technology simply reaches the low characteristics of cost.
Claims (1)
1. the technology of preparing of a titanium dioxide optical catalyst that is made of titanium plate or titanium bits 1, deoil washer 2 and oxidation furnace 3 is characterized in that:
A. atmosphere is that nitrogen adds the mist that steams aqueous vapor in the oxidation furnace 3, and nitrogen is 5: 1 with the mixed volume ratio of steam.
B. oxidation furnace 3 is heated to 600 to 700 ℃, is incubated 10 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00125293 CN1118321C (en) | 2000-09-21 | 2000-09-21 | Process for preparing TiO2 photocatalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00125293 CN1118321C (en) | 2000-09-21 | 2000-09-21 | Process for preparing TiO2 photocatalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1343530A true CN1343530A (en) | 2002-04-10 |
| CN1118321C CN1118321C (en) | 2003-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00125293 Expired - Fee Related CN1118321C (en) | 2000-09-21 | 2000-09-21 | Process for preparing TiO2 photocatalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1118321C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100411732C (en) * | 2006-09-22 | 2008-08-20 | 中国海洋大学 | Method for preparing nano powder catalyst |
| CN100411731C (en) * | 2006-09-22 | 2008-08-20 | 中国海洋大学 | Method for preparing nano powder photocatalyst |
-
2000
- 2000-09-21 CN CN 00125293 patent/CN1118321C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100411732C (en) * | 2006-09-22 | 2008-08-20 | 中国海洋大学 | Method for preparing nano powder catalyst |
| CN100411731C (en) * | 2006-09-22 | 2008-08-20 | 中国海洋大学 | Method for preparing nano powder photocatalyst |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1118321C (en) | 2003-08-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |