Titanium dioxide into new killer PM2.5 titanium will be benefit

On October 20,after serious haze weather in Harbin,21,the morning air pollution increasingly serious situation,PM2.5 index for "table",some urban visibility is less than 50 meters,the whole city elementary and middle schools closed,part of the bus lines to suspend operations,multiple highway all closed.How to govern the fog haze is becoming concerned about the focus of the market,including new materials will no doubt play an important role,especially the titanium dioxide.Scientists have found that concrete or asphalt containing titanium dioxide can purify air,eliminate vehicle emissions in 25% to 45% of nitrogen oxides.

Titanium dioxide into governance haze good helper

As coating pigment of light catalyst,titanium dioxide is not only a kind of environmental safety of cleaner,but also can save energy and protect the environment and resources.

Early Japanese and British scientists will titanium dioxide coated in urban road pavement surface,air is used to clean the road.Titanium dioxide can be blended with asphalt,reduce the pollutant in the air.When a car,or asphalt concrete containing titanium dioxide can purify air,eliminate vehicle emissions of nitrogen oxides by 25% to 45%.Industry experts said the cleaning urban air,the construction of ecological city,the titanium dioxide will have.

Beijing university of technology have developed with nano titanium dioxide photocatalyst coating,for nitrogen dioxide,ammonia,formaldehyde and benzene in the air and other gas decomposition rate of decomposition in 20 minutes more than 70%;And the light catalyst sales price is not higher than 50% of the international similar products price.Nanometer titanium dioxide is a kind of photocatalyst,so itself is not consumed in the reaction process,for some special pollutants has is more outstanding than other oxidation effect,and no secondary pollution.

The global initiative

To solve the PM2.5 carbon new material

Yale university postdoctoral Xu Haiceng,changsha people develop a carbon new material,to obtain a patent for invention in the United States.In June of 2010,focuses on the technology back to China,by the changsha city government as outstanding overseas returnees talent introduction,invested by hunan culture as group conduct transformation of technological achievements.

In July 2012,this carbon base with new material made of d s card writing verses national indoor environment and indoor environmental protection product quality supervision and inspection center detection,the harmful gas adsorption effect than similar products at home and abroad,such as more than 20 times that of activated carbon,diatom mud, etc.D card of stone have good mechanical properties and retained the carbon new material for the powerful effect of the harmful gas such as formaldehyde adsorption.And the harmful gas such as activated carbon,diatom ooze of environmental protection product,the product not only adsorption function,and also by the mixed crystal materials composition of titanium dioxide,effectively put the adsorption of benzene kind of harmful gas such as formaldehyde decomposed into harmless water and carbon dioxide,which solved the problem of the indoor pollution from the source.

According to introducing,PM2.5 positively charged,d card ode Shi Yongjiu carry the negative charge,can effective adsorption PM2.5 continuously,as the new environmental protection decoration material can be recycled.

By Nicole