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Nanometer photocatalyst spray-coating agent and preparation method thereof

A nano-photocatalyst and spraying agent technology, used in the field of environmental pollution control, can solve the problems of limited lighting conditions and slow reaction speed, and achieve the effect of wide application range and excellent air pollution degradation ability.

Inactive Publication Date: 2013-08-14
东振嘉业(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a nano-photocatalyst spraying agent and a preparation method thereof, which solves the problems of limited light conditions and slow reaction speed in existing photocatalyst treatment methods for environmental pollution

Method used

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  • Nanometer photocatalyst spray-coating agent and preparation method thereof
  • Nanometer photocatalyst spray-coating agent and preparation method thereof
  • Nanometer photocatalyst spray-coating agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 Shown, prepare nano photocatalyst spraying agent, comprise the following steps:

[0035] (1) Disperse 1.0 parts by weight of a stable dispersant in 100 parts by weight of deionized water, stir and mix evenly, and prepare a stable aqueous dispersion;

[0036] (2) 1.5 parts by weight of nano-TiO 2 Add the photocatalyst into the aqueous dispersion prepared in step (1), stir and mix evenly, and prepare the aqueous nano-dispersion;

[0037] (3) Add 0.05 parts by weight of film-forming agent into the aqueous nano-dispersion prepared in step (2), stir and mix evenly to obtain the product.

[0038] Among them, the film-forming agent is composed of the following components by weight percentage: 20% shellac, 20% gum arabic, 30% agar, 15% starch, and 15% polyvinyl alcohol.

[0039] Among them, the stable dispersant is sodium methylene bis-naphthalene sulfonate.

[0040] The nanophotocatalyst spraying agent prepared in this example has remarkable antibacterial (in...

Embodiment 2

[0043] like figure 1 Shown, prepare nano photocatalyst spraying agent, comprise the following steps:

[0044] (1) Disperse 0.8 parts by weight of a stable dispersant in 100 parts by weight of deionized water, stir and mix evenly, and prepare a stable aqueous dispersion;

[0045] (2) 1.2 parts by weight of nano-TiO 2 Add the photocatalyst into the aqueous dispersion prepared in step (1), stir and mix evenly, and prepare the aqueous nano-dispersion;

[0046] (3) Add 0.04 parts by weight of film-forming agent into the aqueous nano-dispersion prepared in step (2), stir and mix evenly to obtain the product.

[0047] Among them, the film-forming agent is composed of the following components by weight percentage: 30% shellac, 20% gum arabic, 30% agar, 10% starch, and 10% polyvinyl alcohol.

[0048] Wherein, the stable dispersant is sodium methylene bis-naphthalene sulfonate.

[0049] The nanophotocatalyst spraying agent prepared in this example has remarkable antibacterial (inhib...

Embodiment 3

[0052] like figure 1 Shown, prepare nano photocatalyst spraying agent, comprise the following steps:

[0053] (1) Disperse 0.5 parts by weight of a stable dispersant in 100 parts by weight of deionized water, stir and mix evenly, and prepare a stable aqueous dispersion;

[0054] (2) 0.8 parts by weight of nano-TiO 2 Add the photocatalyst into the aqueous dispersion prepared in step (1), stir and mix evenly, and prepare the aqueous nano-dispersion;

[0055] (3) Add 0.02 parts by weight of film-forming agent into the aqueous nano-dispersion prepared in step (2), stir and mix evenly to obtain the product.

[0056] Wherein, the film-forming agent is calculated by weight percentage and consists of the following components: 40% gum arabic, 30% agar, 15% starch, and 15% polyvinyl alcohol.

[0057] Wherein, the stable dispersant is sodium methylene bis-naphthalene sulfonate.

[0058] The nanophotocatalyst spraying agent prepared in this example has remarkable antibacterial (inhibiti...

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Abstract

The invention provides a nanometer photocatalyst spray-coating agent and a preparation method thereof. The nanometer photocatalyst spray-coating agent solves the problems of limited illumination condition and low reaction speed of the traditional method for curbing environmental pollution through a photocatalyst. The nanometer photocatalyst spray-coating agent comprises the following components in parts by weight: 0.6-1.5 parts of nanometer TiO2 photocatalysts, 0.01-0.05 part of film-forming agents, 0.2-1.0 part of stable dispersing agents and 100 parts of deionized water. The invention discloses the preparation method of the nanometer photocatalyst spray-coating agent. The nanometer photocatalyst spray-coating agent prepared through the method provided by the invention has highest ight utilization ratio in the industry, can be used for catalyzing nanometer photocatalysts through light with wavelength being less than 600 nanometers and has the advantages of high efficiency and safety in air pollution control and wide application range.

Description

technical field [0001] The invention relates to the field of environmental pollution control, in particular to a nano photocatalyst spraying agent and a preparation method thereof. Background technique [0002] At present, there are many methods to control environmental pollution on the market. Among them, the photocatalyst treatment method refers to: after the photocatalyst absorbs the ultraviolet rays in the sunlight or the lighting source, a redox reaction occurs under the excitation of ultraviolet energy. The ordinary photocatalyst must have a wavelength below 388 nanometers. Light can be catalyzed, and strong oxidizing hydroxyl radicals and superoxide anion radicals are formed on the surface, decomposing harmful substances and microorganisms free in the air into harmless carbon dioxide and water, so as to achieve the purpose of purifying air, sterilizing, deodorizing, etc. . However, the photocatalyst is limited by the light conditions, the reaction speed is relatively...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/12C09D5/14
CPCY02A50/20
Inventor 刘永乔振山贾宏军
Owner 东振嘉业(北京)科技有限公司
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