Diatom ooze coating with purification effect

A technology of diatom mud coating and action, applied in the direction of coating, etc., to achieve the effect of good grain crystallinity, increased degradation rate, and low preparation temperature

Active Publication Date: 2019-01-18
广东吉美帮新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal-doped modified BiNbO 4 There are few reports on photocatalysts, and even less reports on their applicatio

Method used

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  • Diatom ooze coating with purification effect

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0036] Example 1

[0037] A diatom mud coating with purification effect, the weight percentage of each raw material is: 10% of diatomite, 5% of shell powder, 25% of light calcium carbonate, 12% of ethylene-vinyl acetate copolymer, 5% of cellulose ether %, composite photocatalyst 5%, guar gum 6%, surfactant 0.5%, dispersant 1%, the balance is deionized water;

[0038] The composite photocatalyst is Zr-BiNbO 4 Photocatalyst, Zr-BiNbO 4 The preparation method of photocatalyst is as follows:

[0039] (1) dissolve 10mol bismuth nitrate in 50% concentrated nitric acid, add water to be diluted to 5mol / L while stirring, obtain bismuth nitrate acid solution after stirring;

[0040] (2) 11mol potassium niobate is dissolved in 5-7mol / L potassium hydroxide solution, and after stirring, potassium niobate solution is obtained;

[0041] (3) while stirring the bismuth nitrate acid solution, the potassium niobate solution is dropped into it, after the dropwise addition, stirring is perform...

Example Embodiment

[0050] Example 2

[0051] A diatom mud coating with purification effect, the weight percentage of each raw material is: 15% of diatomite, 3% of shell powder, 30% of light calcium carbonate, 10% of ethylene-vinyl acetate copolymer, 7% of cellulose ether %, composite photocatalyst 8%, guar gum 9%, surfactant 1, dispersant 2%, the balance is deionized water;

[0052] The composite photocatalyst is Zr-BiNbO 4 Photocatalyst, Zr-BiNbO 4 The preparation method of the photocatalyst is the same as in Example 1;

[0053] Described surfactant is fatty alcohol polyoxyethylene ether ammonium sulfate;

[0054] Described dispersant is calcium stearate;

[0055] A preparation method of a diatom mud coating with purifying effect is:

[0056] S1. Activation of diatomite: 1kg of diatomite was added to a ball mill for grinding and pulverization, soaked in 10% nitric acid for 5 hours, filtered, washed to neutrality, dried, and then put into a muffle furnace for gradient calcination. The calc...

Example Embodiment

[0059] Example 3

[0060] A diatom mud coating with purification effect, the weight percentage of each raw material is: diatomite 5%, shell powder 6%, light calcium carbonate 25%, ethylene-vinyl acetate copolymer 12%, cellulose ether 6% %, composite photocatalyst 7%, guar gum 8%, surfactant 0.5%, dispersant 3%, the balance is deionized water;

[0061] The composite photocatalyst is Zr-BiNbO 4 Photocatalyst, Zr-BiNbO 4 The preparation method of the photocatalyst is the same as in Example 1;

[0062] Described surfactant is fatty alcohol polyoxyethylene ether ammonium sulfate;

[0063] Described dispersant is calcium stearate;

[0064] A preparation method of a diatom mud coating with purifying effect is:

[0065] S1. Activation of diatomite: 1kg of diatomite was added to a ball mill for grinding and pulverization, soaked in 10% nitric acid for 4 hours, filtered, washed to neutrality, dried, and then put into a muffle furnace for gradient calcination. The calcination steps...

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Abstract

The invention discloses diatom ooze coating with a purification effect. The diatom coating with the purification effect comprises the following raw materials according to the weight percentage of: 5-15% of diatom ooze, 3-6% of shell powder, 20-30% of light calcium carbonate, 10-15% of ethylene-vinyl acetate copolymer, 5-7% of cellulose ether, 5-8% of composite photocatalyst, 6-9% of guar gum, 0.5-2% of surfactant, 1-3% of dispersant and the balance deionized water, wherein the composite photocatalyst is a Zr-BiNbO4 photocatalyst; and Zr is doped into BiNbO4 for modification treatment, so thatthe visible light range of the BiNbO4 is widened, the photo-induced electron-hole recombination of the BiNbO4 is reduced, and the photocatalytic performance of the BiNbO4 is greatly improved; and thecomposite photocatalyst Zr-BiNbO4 was loaded onto the activated diatom ooze, so that the catalysis area of the photocatalyst is increased, and the degradation rate of formaldehyde by the composite photocatalyst Zr-BiNbO4 is greatly increased.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a diatom mud coating with purifying effect. Background technique [0002] It has become a consensus that environmental pollution will induce pathological changes in the human body. The pathogenic bacteria, PM2.5 fine particles and pathogenic and carcinogenic organic substances permeating the living environment have attracted more and more attention. The formaldehyde, volatile organic compounds (Volatile Organic Compounds, VOC), fine dust particles, toxic Composition has become the number one concern for consumers after a home renovation. Among them, formaldehyde is a colorless gas with a strong pungent smell. It is very volatile at room temperature, and the volatile amount increases with the increase of temperature. It has a strong stimulating effect on human skin and mucous membranes. It can be converted into methanol in the body and have adverse e...

Claims

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Application Information

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IPC IPC(8): C09D123/08C09D101/26C09D105/00C09D7/61C09D7/63C09D7/62C09D7/65
CPCC08K2003/265C08K2201/014C08L2205/03C09D7/61C09D7/62C09D7/63C09D7/65C09D7/70C09D123/0853C08L1/26C08L5/00C08L71/02C08K13/06C08K3/26C08K7/26C08K3/24
Inventor 不公告发明人
Owner 广东吉美帮新材料有限公司
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