Production of titanium dioxide optical catalyst sol

A titanium dioxide and photocatalyst technology, applied in the directions of titanium dioxide, chemical instruments and methods, titanium oxide/hydroxide, etc., can solve the problems of secondary pollution, high investment cost, unsatisfactory purification effect, etc., and achieve long-lasting effect and long-lasting use effect. , The effect of photocatalytic effect is obvious

Inactive Publication Date: 2006-05-31
ZHEJIANG UNIV
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Problems solved by technology

The former will cause secondary pollution, the latter has high equipment investment costs, and the purification effect of the two methods is not ideal

Method used

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Examples

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Embodiment Construction

[0014] The present invention is further described by examples below.

[0015] The present invention prepares the operating steps in the embodiment of titanium dioxide photocatalyst sol as follows:

[0016] (1) Add at least one of titanium tetrachloride, titanium sulfate or butyl titanate into an alcohol dilution solvent of 1 to 10 times (m / m) under stirring conditions, and stir evenly;

[0017] (2) Add the mixed solution in step (1) dropwise to 1-500 times (m / m) hydrolysis solvent at a water bath temperature of 5-95°C, and stir for 0.5-5 hours;

[0018] (3) The sol is aged for 1 hour to 15 days until it is blue-white and transparent.

[0019] The alcohol diluting solvent can be any one of absolute ethanol, ethylene glycol, and isopropanol.

[0020] The hydrolysis solvent can be deionized or distilled water.

[0021] When the mixed solution is added to the hydrolysis solvent, an inorganic acid can also be added to control the hydrolysis rate. The inorganic acid can be one of...

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Abstract

Production of titania light catalyst colloidal sol includes adding at least one among titanic chloride, titanous sulfate and butyrin titanate into alcohol diluent solvent while agitating, dripping the mixed solution into hydrolysable solvent under water bath, agitating, and laying aside colloidal sol. It has super oxidative ability to decompose organics and harmful gas and can be used for glass, ceramic, household apparatus and public places. It has non toxic and no harm, no second pollution, better light catalytic effect, simple process and lasting performance.

Description

technical field [0001] The present invention relates to a kind of preparation method of sol, more specifically, the present invention relates to a kind of preparation method of titanium dioxide photocatalyst sol. Background technique [0002] Air pollution has become an invisible killer of people’s lives. Harmful gases in various constructions, decorations, homes, cars and the atmosphere have seriously exceeded the standard, causing various diseases and even death. At the same time, the spread of various infectious bacteria and viruses is also seriously threatening human health. [0003] There are mainly two kinds of air purification methods commonly used at present, one is to spray aerosols such as air purifiers, and the other is to use air purification devices to purify, but there are drawbacks. The former will cause secondary pollution, the latter has high equipment investment costs, and the purification effect of the two methods is not ideal. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/053B01J21/06
Inventor 杨辉高基伟
Owner ZHEJIANG UNIV
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