Nano titanium dioxide photocatalyst

A technology of nano-silica and nano-zirconia, which is applied in the field of photocatalyst preparation, can solve the problems of low light utilization rate, weak photocatalysis, unsatisfactory bactericidal effect, etc., and achieve long storage time, wide source of raw materials, good The effect of thermochemical stability

Inactive Publication Date: 2019-08-23
四川净入环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current photocatalysts generally have shortcomings such as weak photocatalysis, low light utilization rate, unsatisfactory bactericidal effect, and no antibacterial effect. Therefore, it is necessary to improve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The photocatalyst components include 10 parts by weight of nano-scale titanium dioxide, 1 part of dispersant, 2 parts of nano-silver, 3 parts of nano-silica, 3 parts of nano-zirconia, 4 parts of nano-zinc oxide, 12 parts of deionized water, 4 parts of ferric chloride, 5 parts of polyvinylpyrrolidone.

[0019] The preparation method of the present embodiment comprises the following steps:

[0020] A, ferric chloride and polyvinylpyrrolidone are mixed and dissolved in absolute ethanol to obtain mixed solution A;

[0021] B. Mix nano-scale titanium dioxide, nano-silver, nano-silica, nano-zirconia, and nano-zinc oxide and add them to the stirring tank, and add deionized water, and fully stir at room temperature to obtain the mixed solution B;

[0022] C. Add the mixed solution A to the mixed solution B, and add a dispersant, then add the mixed solution into a water bath for ultrasonic water bath heating, and then slowly cool to room temperature to obtain a photocatalyst. ...

Embodiment 2

[0026] The photocatalyst components include 20 parts by weight of nano-scale titanium dioxide, 3 parts of dispersant, 4 parts of nano-silver, 6 parts of nano-silica, 9 parts of nano-zirconia, 10 parts of nano-zinc oxide, 22 parts of deionized water, 10 parts of ferric chloride, 12 parts of polyvinylpyrrolidone.

[0027] The preparation method of the present embodiment comprises the following steps:

[0028] A, ferric chloride and polyvinylpyrrolidone are mixed and dissolved in absolute ethanol to obtain mixed solution A;

[0029] B. Mix nano-scale titanium dioxide, nano-silver, nano-silica, nano-zirconia, and nano-zinc oxide and add them to the stirring tank, and add deionized water, and fully stir at room temperature to obtain the mixed solution B;

[0030] C. Add the mixed solution A to the mixed solution B, and add a dispersant, then add the mixed solution into a water bath for ultrasonic water bath heating, and then slowly cool to room temperature to obtain a photocatalys...

Embodiment 3

[0034] The photocatalyst components include 12 parts by weight of nano-scale titanium dioxide, 2 parts of dispersant, 2 parts of nano-silver, 4 parts of nano-silica, 4 parts of nano-zirconia, 5 parts of nano-zinc oxide, 14 parts of deionized water, 5 parts of ferric chloride, 7 parts of polyvinylpyrrolidone.

[0035] The preparation method of the present embodiment comprises the following steps:

[0036] A, ferric chloride and polyvinylpyrrolidone are mixed and dissolved in absolute ethanol to obtain mixed solution A;

[0037] B. Mix nano-scale titanium dioxide, nano-silver, nano-silica, nano-zirconia, and nano-zinc oxide and add them to the stirring tank, and add deionized water, and fully stir at room temperature to obtain the mixed solution B;

[0038] C. Add the mixed solution A to the mixed solution B, and add a dispersant, then add the mixed solution into a water bath for ultrasonic water bath heating, and then slowly cool to room temperature to obtain a photocatalyst. ...

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PUM

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Abstract

The invention discloses a nano titanium dioxide photocatalyst. The photocatalyst comprises the following components in parts by weight: 10-20 parts of nano titanium dioxide, 1-3 parts of a dispersingagent, 2-4 parts of nano-silver, 3-6 parts of nano-silica, 3-9 parts of nano zirconia, 4-10 parts of nano-zinc oxide, 12-22 parts of deionized water, 4-10 parts of ferric chloride and 5-12 parts of polyvinylpyrrolidone. The preparation method is simple, the raw material source is wide, and the prepared photocatalyst is excellent in catalytic effect, does not produce corrosion, and is high in oxidizing ability, high in bactericidal ability and long in preservation time.

Description

technical field [0001] The invention relates to the technical field of photocatalyst preparation, in particular to a nanoscale titanium dioxide photocatalyst. Background technique [0002] Photocatalyst is a general term for a photo-semiconductor material with photocatalytic function represented by nano-scale titanium dioxide. It is coated on the surface of the substrate and has a strong catalytic degradation function under the action of ultraviolet light and visible light: it can effectively degrade air. Toxic and harmful gases; can effectively kill a variety of bacteria, and can decompose and harmless the toxins released by bacteria or fungi; at the same time, it also has the functions of removing formaldehyde, deodorizing, anti-pollution, and purifying air. [0003] The current photocatalysts generally have shortcomings such as weak photocatalysis, low light utilization rate, unsatisfactory bactericidal effect, and no bacteriostatic effect. Therefore, it is necessary to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/38B01J37/10B01J37/34B01D53/86B01D53/72
CPCB01D53/8668B01D2255/802B01D2257/708B01J31/38B01J35/004B01J37/10B01J37/343
Inventor 赵鹤阳
Owner 四川净入环境工程有限公司
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