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Preparation method for reinforced photocatalysis environment-friendly brick

A photocatalytic, environmentally friendly brick technology, applied in the field of resource recycling technology and material science, can solve problems such as insufficient photocatalytic activity

Inactive Publication Date: 2013-05-15
INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, crushed glass has been used as the photocatalytic surface aggregate of environmentally friendly bricks to enhance the photocatalytic activity through the light transmission characteristics of glass, but its photocatalytic activity is still not ideal, and it is necessary to further explore the enhancement of the photocatalytic performance of environmentally friendly bricks. way

Method used

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  • Preparation method for reinforced photocatalysis environment-friendly brick
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Mix chopped glass fibers accounting for 1.6% of the total mass of the surface layer of photocatalytic environmental protection bricks and 3.3% anatase nano-titanium dioxide, add appropriate amount of furnace bottom slag, cement and water, and stir evenly to prepare photocatalytic environmental protection brick samples. The flow rate is 1L / min, the NO concentration is 1ppm, and the measured NO removal efficiency is 48.3%.

Embodiment 2

[0012] Mix chopped glass fibers accounting for 0.8% of the total mass of the surface layer of photocatalytic environmental protection bricks and 3.3% anatase nano-titanium dioxide, add appropriate amount of sand, cement and water, and stir evenly to prepare photocatalytic environmental protection brick samples, with a flow rate of 1L / min, NO concentration 1ppm intake air, the measured NO removal efficiency is 39.5%.

Embodiment 3

[0014] Mix chopped glass fibers accounting for 0.8% of the total mass of the surface layer of photocatalytic environmental protection bricks and 3.3% anatase nano-titanium dioxide, add appropriate amount of furnace bottom slag, cement and water, and stir evenly to prepare photocatalytic environmental protection brick samples. The flow rate is 1L / min, the NO concentration is 1ppm, and the measured NO removal efficiency is 42.4%.

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Abstract

The invention discloses a preparation method for a reinforced photocatalysis environment-friendly brick. The preparation method is mainly characterized in that a photocatalyst-contained surface layer is added on a bottom layer of the environment-friendly brick, and simultaneously, photocatalytic performance is reinforced through formula to enable the brick to have a strong degradation function on atmospheric pollutants. The photocatalysis environment-friendly product can be paved on places of sidewalks, gardens, squares, parking lots and schools or surfaces of other buildings and the like to achieve air purification.

Description

technical field [0001] The invention relates to a preparation method of enhanced photocatalytic environmental protection brick. It belongs to the field of resource recycling technology and material science. Background technique [0002] With the rapid development of my country's economy and society, people's living standards continue to improve, and the number of automobiles continues to rise. In 2009, the number of motor vehicles in the country was close to 170 million. The contribution of automobile exhaust to urban air pollution has been increasingly valued. In 2009, motor vehicles nationwide emitted 51.433 million tons of pollutants, including 40.188 million tons of carbon monoxide (CO), 4.822 million tons of hydrocarbons (HC), 5.833 million tons of nitrogen oxides (NOx ), and 590,000 tons of particulate matter (PM ). Automobiles have become the main contributor to the total amount of motor vehicle pollutants, with carbon monoxide (CO) and hydrocarbons (HC) exceeding 70...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B3/00B28B1/52C04B28/00
Inventor 张凯松程国淡
Owner INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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