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Manufacturing Method Of Tungsten Trioxide-titanium Dioxide Sol And Application Method Of Tungsten Trioxide-titanium Dioxide Sol

A technology of titanium dioxide and a manufacturing method, which is applied in the field of photocatalyst sol manufacturing, and can solve problems such as inconvenient use of photocatalyst sol

Inactive Publication Date: 2015-08-26
MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above types of photocatalyst sol are inconvenient to use

Method used

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  • Manufacturing Method Of Tungsten Trioxide-titanium Dioxide Sol And Application Method Of Tungsten Trioxide-titanium Dioxide Sol
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  • Manufacturing Method Of Tungsten Trioxide-titanium Dioxide Sol And Application Method Of Tungsten Trioxide-titanium Dioxide Sol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] Embodiment 1 (Example 1)

[0025] In an ice bath at 0°C, slowly drop titanium tetrachloride aqueous solution into hydrochloric acid aqueous solution to make a 5 molar concentration (5M), then slowly add 30% ammonia solution to the aforementioned solution, and keep stirring until The pH value of the solution is 8.5. After repeated washings, until the concentration of chlorine is lower than 10ppm, it is filtered to obtain a filter cake, which is naturally dried at room temperature. In order to control the solid content of titanium dioxide in the solution at 1%, take Add a certain amount of filter cake to distilled water, and add tungstic acid and hydrogen peroxide. The weight ratio of titanium dioxide is 1 to 100, and the weight ratio of tungstic acid to titanium dioxide is 0.5 to 100. The solution is in the Erlenmeyer flask. Connect the cooling tube to the top, heat and boil in water at 95°C for 12 hours to obtain nano-scale titanium dioxide sol.

Embodiment 2

[0027] Same as Example 1, except that the weight ratio of tungstic acid to titanium dioxide is 2:100.

Embodiment 3

[0029] Same as Example 1, except that the weight ratio of tungstic acid to titanium dioxide is 0.5 to 100.

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Abstract

The present invention discloses a manufacturing method of a tungsten trioxide-titanium dioxide sol and an application method of the tungsten trioxide-titanium dioxide sol. The manufacturing method of the tungsten trioxide-titanium dioxide sol comprises the steps of (a) stirring a titanium tetrachloride aqueous solution and a hydrochloric acid water solution in ice-bath to form a solution A; (b) adding hartshorn to make the solution A into a titanium hydroxide sol; (c)adding tungsten acid and hydrogen peroxide in the water solution containing the titanium hydroxide sol to form a solution B;(d) heating the solution B for a period of time across the water, until the titanium hydroxide sol is hydrolyze to disappear completely, thereby forming the stable and suspended tungsten trioxide-titanium dioxide sol.

Description

technical field [0001] The invention relates to a method for manufacturing a photocatalyst sol, in particular to a method for manufacturing a tungsten trioxide-titanium dioxide sol. Background technique [0002] In order to make titanium dioxide thin films, several main preparation methods have been developed in recent years. For substrates with large surface area, chemical vapor deposition is usually used to make thin films. The principle uses chemical reactions to generate solid species from gaseous reactants in the reaction area and further deposits them on the surface of the carrier. Substrate adsorption If the force is strong, high-temperature equipment is necessary, and the process is complicated. [0003] China Taiwan Patent Application No. 92122034 discloses the synthetic method of preparing crystalline titanium dioxide photocatalyst, and it is to utilize titanium tetrachloride or titanium sulfate to adjust pH value with ammoniacal liquor and add suitable oxidizing ...

Claims

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Application Information

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IPC IPC(8): B01J23/30B01J37/02
Inventor 陈郁文吴佳颖
Owner MATERIAL TECH
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