Photocatalyst type adsorption filtering agent capable of efficiently absorbing nitrogen oxide and preparation method therefor

Abstract

The present invention discloses a photocatalyst type adsorption filtering agent capable of efficiently absorbing nitrogen oxide. The photocatalyst type adsorption filtering agent capable of efficiently absorbing nitrogen oxide is characterized in by being prepared from the following raw materials in parts by weight: 58-68 parts of celestite powder, 10-20 parts of clays, 15-20 parts of bamboo charcoal powder, 8-12 parts of polyurethane foaming plastic, 4.7-6.7 parts of nanotitanium dioxide, 0.3-0.7 part of sodium citrate, 0.4-0.6 part of cuprous chloride, 1-2 parts of sodium hydrogen sulfite, 3-5 parts of tea tree oil and an appropriate amount of water. According to the photocatalyst type adsorption filtering agent capable of efficiently absorbing nitrogen oxide the polyurethane foaming plastic has a structural three-dimensional network structure, has more pores and the pore diameters can be adjusted. The titanium dioxide and celestite powder are dispersed in a polyurethane foaming plastic matrix to decompose organic pollutants into carbon dioxide and oxygen, so that the service life of the adsorption filtering agent is prolonged. The prepared adsorption filtering agent is coarse and hard in surface, large in specific surface area, high in porosity, good in adsorption and filtration capacity and low in cost, and further has a good characteristic of adsorbing nitrogen oxide.

Description

technical field [0001] The invention relates to the technical field of adsorption filter materials, in particular to a photocatalyst type adsorption filter capable of efficiently adsorbing nitrogen oxides and a preparation method thereof. Background technique [0002] With the rapid development of industrialization, the problem of air quality is becoming more and more serious. Especially in recent years, smog has seriously threatened people's health across the country, and the side effects caused by it have become increasingly serious. The culprits are domestic building materials, chemicals, For the smoke and dust discharged from kiln heads and kiln tails, calcium carbide furnaces, ferroalloy furnaces, etc. in metallurgical industries, the most commonly used dust removal equipment is the bag filter. The bag filter is a dry dust filter device. After the filter material is used for a period of time, due to the effects of screening, collision, retention, diffusion, and static e...

AI Technical Summary

Problems solved by technology

However, in the actual operation process, the use of the first layer is not enough, resulting in low dust removal effect and serious wear and corrosion of the filter material after long-term use. There is an urgent need for an adsorption filter with high efficiency and multiple functions to be sprayed on the filter before the dust collector starts to work. The surface of the material is used as the first layer, which can not only improve the dust removal effect of the dust collector, but also filter and absorb the harmful exhaust gas discharged.