Catalyzing composition for purifying air

Abstract

The invention discloses a catalyzing composition for purifying air. The catalyzing composition comprises the following raw components: (A) 6%-20% of a nanometer TiO2 loaded platinum cerium silver potassium composite oxide, (B) 3%-8% of zirconium doped iron titanium molybdenum vanadium composite oxide, and (C) the balance being activated carbon, wherein in A, the molar ratio of Ti to Pt to Ce to Ag to K is 1 to (0.05-0.1) to (0.05-0.1) to (0.05-0.1) to (0.05-0.1); in B, the molar ratio of Zr to Fe to Ti to Mo to V is (0.02-0.2) to 1 to (0.5-1) to (0.5-1) to (0.5-1); iron titanium molybdenum composite oxide has a composite oxide minicrystal system which is of Fe-O-Ti, Mo-O-Ti and Fe-O-Mo structures. The catalyzing composition can be loaded / doped on a fiberglass filtering element or a filtering mesh, and can be used for catalyzing and purifying organic pollutants and hazes in the air so as to enable the pollutants to be reduced to the ppm level.

Description

Technical field [0001] The invention relates to the technical field of air purification, in particular to a catalytic composition for purifying air. Background technique [0002] Haze weather is a state of atmospheric pollution. Haze is a general expression of the content of various suspended particulates in the atmosphere exceeding the standard, especially PM2.5 (particulate matter with aerodynamic equivalent diameter less than or equal to 2.5 microns) is considered to cause haze The "culprit" of the weather. [0003] Haze, also known as haze (smog) particles in the air, such as dust, sulfuric acid, nitric acid, and organic hydrocarbons, can also make the atmosphere turbid. The phenomenon in which the horizontal visibility of the target is 1000-10000 meters is called mist or mist (Mist). When the fog is formed, the atmospheric humidity should be saturated (if there are a lot of condensation nuclei, the relative humidity may not reach 100%, then saturation may occur). Since the ...

AI Technical Summary

Problems solved by technology

[0009] In addition to the impact of smog on indoor air, organic pollutants such as formaldehyde, sulfur oxides, and nitrogen oxides produced by decoration, industrial and mining industries, and vehicle exhaust have also produced huge pollution to the air, which also leads to indoor air quality. decline, affecting people's health

[0010] The current methods of removing air pollution mostly rely on physical adsorption such as activated carbon adsorption. This method of removing pollution is slow to take effect, and cannot decompose organic pollutants, nor can it significantly reduce smog, so it is more limited

[0011] Although there are some means of purifying indoor air by chemical methods, such as using various chemical reagents or catalysts, they generally require higher temperatures and have more restrictions on the use environment.

[0012] After searching the existing technologies, the inventor found that there is no technology to catalyze air at room temperature, decompose organic pollutants in the air, reduce smog particles, and reduce the concentration of pollutants to the ppm level.