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A kind of antibacterial formaldehyde removal catalytic material and its preparation method and application

A catalytic material and formaldehyde technology, applied in the field of antibacterial formaldehyde removal catalytic materials and its preparation, can solve the problems of unsatisfactory effect and safety of formaldehyde removal coatings, achieve long-term and complete removal of formaldehyde, good prospects, and wide application range

Active Publication Date: 2021-05-07
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the problems that existing formaldehyde removal coatings require light irradiation to catalyze and decompose formaldehyde, the effect of formaldehyde removal coatings is not ideal, and safety, etc., the primary purpose of the present invention is to provide a preparation method of an antibacterial formaldehyde removal catalytic material

Method used

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  • A kind of antibacterial formaldehyde removal catalytic material and its preparation method and application
  • A kind of antibacterial formaldehyde removal catalytic material and its preparation method and application
  • A kind of antibacterial formaldehyde removal catalytic material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Weigh 3.0kg of potassium permanganate, 3.0kg of ferric chloride, 4.0kg of ammonium oxalate, and 3.0kg of silver nitrate in a reaction kettle, and add 100L of distilled water into the reaction kettle, stir and mix until evenly mixed. Heat and stir in water at 100°C for 9 hours, and cool to room temperature naturally after the reaction. Soak and stir the modified material after reaction with pure water for 30 minutes, and pour off the upper layer of water after the material slowly settles. Put the cleaned material into an oven and dry it at 70°C to obtain an antibacterial and formaldehyde-removing catalytic material.

[0033] (2) Take 0.4 kg of titanium dioxide and put it into a grinder, grind it for 20 minutes, and sieve it to obtain powder. Then take the prepared 1.2kg antibacterial and formaldehyde-removing catalytic material, 2.0kg styrene-acrylic emulsion and 0.28kg water to the mixer A and stir for 20 minutes, after mixing evenly, stir for 20 minutes to obtain ...

Embodiment 2

[0036] (1) Weigh 3.0kg of potassium permanganate, 3.0kg of ferric chloride, 4.0kg of ammonium oxalate, and 3.0kg of silver nitrate in a reaction kettle, and add 100L of distilled water into the reaction kettle, stir and mix until evenly mixed. Heat and stir in water at 100°C for 9 hours, and cool to room temperature naturally after the reaction. Soak and stir the modified material after reaction with pure water for 30 minutes, and pour off the upper layer of water after the material slowly settles. Put the cleaned material into an oven and dry it at 70°C to obtain an antibacterial and formaldehyde-removing catalytic material.

[0037](2) Take 1.0 kg of titanium dioxide and put it into a grinder, grind it for 20 minutes, and sieve it to obtain a powder. Then take the prepared 3.0kg antibacterial and formaldehyde-removing catalytic material, 5.0kg styrene-acrylic emulsion and 0.7kg water to the mixer A and stir for 20 minutes, after mixing evenly, stir for 20 minutes to obtain ...

Embodiment 3

[0040] (1) Weigh 3.0kg of potassium permanganate, 3.0kg of ferric chloride, 4.0kg of ammonium oxalate, and 3.0kg of silver nitrate in a reaction kettle, and add 100L of distilled water into the reaction kettle, stir and mix until evenly mixed. Heat and stir in water at 100°C for 9 hours, and cool to room temperature naturally after the reaction. Soak and stir the modified material after reaction with pure water for 30 minutes, and pour off the upper layer of water after the material slowly settles. Put the cleaned material into an oven and dry it at 70°C to obtain an antibacterial and formaldehyde-removing catalytic material.

[0041] (2) Take 0.4 kg of titanium dioxide and put it into a grinder, grind it for 20 minutes, and sieve it to obtain powder. Then take the prepared 3.0kg antibacterial and formaldehyde-removing catalytic material, 2.0kg styrene-acrylic emulsion and 0.7kg water to the mixer A and stir for 20 minutes. After mixing evenly, stir for 20 minutes to obtain a...

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Abstract

The invention belongs to the technical field of catalytic materials and coatings, and discloses an antibacterial and formaldehyde-removing catalytic material as well as a preparation method and application thereof. Add permanganate, iron salt, oxalate and silver nitrate into water, stir and mix evenly, and react hydrothermally at a temperature of 70-120°C. After the reaction is completed, naturally cool to room temperature, and the solid product is separated, washed, and dried. The powdered antibacterial and formaldehyde-removing catalytic material is obtained. The antibacterial and formaldehyde-removing catalytic material is stirred and mixed with titanium dioxide, styrene-acrylic emulsion and water, and then an auxiliary agent is added to stir and mix evenly to obtain an antibacterial and formaldehyde-removing coating. The catalytic material obtained in the invention can efficiently catalyze and oxidize the formaldehyde under the condition of room temperature and no light, and degrade the formaldehyde into harmless carbon dioxide and water. The obtained antibacterial and formaldehyde-removing paint can be well applied on artificial boards, plastic wallpapers and walls, and is safe, non-toxic and free from any peculiar smell. It can degrade formaldehyde more quickly, safely and for a long time.

Description

technical field [0001] The invention belongs to the technical field of catalytic materials and coatings, and in particular relates to an antibacterial and formaldehyde-removing catalytic material and a preparation method and application thereof. Background technique [0002] Formaldehyde is a colorless gas with a strong pungent odor, which can be miscible with water, ethanol, acetone and other organic solvents in any proportion. The main hazard of formaldehyde is the stimulation of the skin and mucous membranes. Excessive concentration of formaldehyde can cause acute poisoning, manifested as red eyes, itchy eyes, sore throat, dyspnea, pulmonary edema, allergic dermatitis, and elevated liver transaminases. Long-term exposure to formaldehyde can cause respiratory dysfunction and liver poisoning. Formaldehyde in the indoor environment mainly comes from furniture, wall paint, wallpaper, flooring, etc., and the release of indoor formaldehyde can last for 3-5 years or even longer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/89B01D53/86B01D53/72C09D125/14C09D5/14
CPCB01J23/8986B01J23/002B01D53/8668C09D125/14C09D5/14B01D2257/704B01D2251/102B01D2256/22B01D2259/4508B01J2523/00B01J35/39B01J2523/18B01J2523/47B01J2523/72B01J2523/842C08K7/24
Inventor 肖凯军叶鹏辉银玉容龚胜
Owner SOUTH CHINA UNIV OF TECH
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