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High-efficiency and durable exhaust gas degradation material and preparation method thereof

An exhaust gas degradation and durability technology, applied in unspecified rubber coatings, coatings, etc., can solve the problems of poor durability and low exhaust gas degradation efficiency, and achieve the effect of maintaining performance, improving wear resistance, and uniform particle distribution.

Inactive Publication Date: 2019-07-12
CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of highly efficient and durable tail gas degradation material and preparation method thereof, to solve the problem of pure nano TiO 2 Problems of low exhaust gas degradation efficiency and poor durability

Method used

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  • High-efficiency and durable exhaust gas degradation material and preparation method thereof
  • High-efficiency and durable exhaust gas degradation material and preparation method thereof
  • High-efficiency and durable exhaust gas degradation material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] An efficient and durable exhaust gas degradation material, including the following components by mass ratio: 45% nano-TiO 2 , 45% Al 2 o 3 and 10% rubber powder. The specific preparation method is as follows:

[0033] (1) Preparation of nano-TiO by sol-gel method 2 / Al 2 o 3 Composite carrier: according to the formula ratio, first dissolve tetra-n-butyl titanate in absolute ethanol (dispersant), the molar ratio of tetra-n-butyl titanate to dispersant is 1:10, then add 20% glacial acetic acid ( hydrolysis inhibitor), the molar ratio of tetra-n-butyl titanate to hydrolysis inhibitor is 1:1, stir to form a colloidal solution, then add deionized water, the molar ratio of tetra-n-butyl titanate to deionized water is 1 :4, while adding Al 2 o 3 , stir evenly to form a gel; dry the gel in a constant temperature oven at 100±5°C for 24 hours to obtain crystals, and place the prepared crystals in a muffle furnace at 500°C for 5 hours to obtain nano-TiO 2 / Al 2 o 3 Comp...

Embodiment 2

[0037] An efficient and durable exhaust gas degradation material, including the following components by mass ratio: 45% nano-TiO 2 , 43%Al 2 o 3 and 12% rubber powder. The specific preparation method is as follows:

[0038] (1) Preparation of nano-TiO by sol-gel method 2 / Al 2 o 3 Composite carrier: according to the formula ratio, first dissolve tetra-n-butyl titanate in isopropanol (dispersant), the molar ratio of tetra-n-butyl titanate to dispersant is 1:5, then add 20% glacial acetic acid ( hydrolysis inhibitor), the molar ratio of tetra-n-butyl titanate to hydrolysis inhibitor is 1:1, stir to form a colloidal solution, then add deionized water, the molar ratio of tetra-n-butyl titanate to deionized water is 1 :3, while adding Al 2 o 3 , stir evenly to form a gel; dry the gel in a constant temperature oven at 100±5°C for 24 hours to obtain crystals, and place the prepared crystals in a muffle furnace at 500°C for 5 hours to obtain nano-TiO 2 / Al 2 o 3 Composite c...

Embodiment 3

[0042] An efficient and durable exhaust gas degradation material, including the following components by mass ratio: 40% nano-TiO 2 , 48% Al 2 o 3 and 12% rubber powder. The specific preparation method is as follows:

[0043] (1) Preparation of nano-TiO by sol-gel method 2 / Al 2 o 3 Composite carrier: according to the formula ratio, first dissolve tetra-n-butyl titanate in n-butanol (dispersant), the molar ratio of tetra-n-butyl titanate to dispersant is 1:15, then add 20% glacial acetic acid ( hydrolysis inhibitor), the molar ratio of tetra-n-butyl titanate to hydrolysis inhibitor is 1:2, stir to form a colloidal solution, then add deionized water, the molar ratio of tetra-n-butyl titanate to deionized water is 1 :5, while adding Al 2 o 3 , stir evenly to form a gel; dry the gel in a constant temperature oven at 100±5°C for 24 hours to obtain crystals, and place the prepared crystals in a muffle furnace at 500°C for 5 hours to obtain nano-TiO 2 / Al 2 o 3 Composite c...

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Abstract

The invention belongs to the technical field of automobile exhaust gas treatment, and particularly discloses a high-efficiency and durable exhaust gas degradation material and a preparation method thereof. The high-efficiency and durable exhaust gas degradation material is prepared from, by mass, 40%-45% of nano TiO2, 43%-48% of Al2O3 and 8%-12% of rubber powder. The exhaust gas degradation material is composed of the nano TiO2, the Al2O3 and the rubber powder, wherein the addition of the Al2O3 and rubber powder modifies the nano TiO2, compared with a pure nano TiO2 material, the material is prepared into a coating, the coating is applied on the road surface, the material has a faster and higher exhaust gas degradation rate and better wear resistance, thereby making the nano TiO2 be betterapplied and popularized in the field of automobile exhaust gas degradation.

Description

technical field [0001] The invention belongs to the technical field of automobile tail gas treatment, and specifically discloses an efficient and durable tail gas degradation material and a preparation method thereof. Background technique [0002] In recent years, with the increase of car ownership year by year, the impact of car exhaust emissions on the atmospheric environment has become more and more serious. Vehicle exhaust contains a large amount of harmful substances such as carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), particulate matter and sulfide, which will cause serious harm to urban residents, road users, traffic management and maintenance personnel. And animals and plants within a certain range along the road will bring greater harm, causing damage to the traffic ecological environment, directly affecting the health of the population and the quality of the living environment. Therefore, it is undoubtedly a better air pollution control method t...

Claims

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Application Information

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IPC IPC(8): C09D121/00C09D7/61C09D1/00C09D7/65
CPCC08K2003/2227C08K2003/2241C08K2201/011C09D1/00C09D7/61C09D7/65C09D121/00C08K3/22
Inventor 徐霈张东长王火明王祺陈飞李聪徐周聪伍杰李菁若
Owner CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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