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Antibacterial formaldehyde-removing catalytic material, and preparation method and application thereof

A catalytic material and formaldehyde technology, applied in the field of antibacterial and formaldehyde-removing catalytic materials and their preparation, can solve problems such as unsatisfactory formaldehyde-removing coating effect and safety, achieve long-term and complete removal of formaldehyde, improve electron transfer efficiency, and easily obtainable Effect

Active Publication Date: 2020-01-03
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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  • Antibacterial formaldehyde-removing catalytic material, and preparation method and application thereof
  • Antibacterial formaldehyde-removing catalytic material, and preparation method and application thereof
  • Antibacterial formaldehyde-removing catalytic material, and preparation method and application thereof

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 formaldehyde-removing catalytic material, and a preparation method and an application thereof. The preparation method comprises the following steps: adding a permanganate, an iron salt, an oxalate and silver nitrate into water, performing stirring for uniform mixing, carrying out a hydrothermal reaction at 70-120 DEG C, naturally cooling the obtained solution to room temperature after the reaction is finished, and separating, washing and drying the obtained solid product to obtain the powdery antibacterial formaldehyde-removing catalytic material. The antibacterial formaldehyde-removing catalytic material, titanium dioxide, a styrene-acrylic emulsion and water are stirred and mixed, assistants are added, and stirring is performed for uniform mixing to obtain an antibacterial formaldehyde-removing coating. The obtained catalytic material can be used for carrying out efficientcatalytic oxidation on formaldehyde under the condition of no light at room temperature, so that formaldehyde is degraded into harmless carbon dioxide and water. The obtained antibacterial formaldehyde-removing coating can be well smeared on artificial boards, plastic wallpaper and walls, and is safe, nontoxic and odorless. The catalytic material can quickly and safely degrade formaldehyde for along 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 Applications(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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