A kind of preparation method of organic gas adsorption purification agent

Abstract

The invention discloses a method for preparing an agent for adsorbing and removing organic gas. The agent for adsorbing and removing the organic gas is prepared from tetraethyl orthosilicate, anhydrous ethanol, N,N-dimethylformamide, coconut shells, phenol, polyvinyl alcohol and other raw materials, and according to the method, porous carbon fiber which is obtained by performing multiple modification process treatment and has high mechanical strength and high adsorbability is prepared from the coconut shells; on the basis of the porous carbon fiber, loading of silica and activation of nitrogen-containing gas are achieved through the addition of the tetraethyl orthosilicate, and a large amount of a nitrogen element is introduced on the carbon fiber, so that a strong catalytic effect on sulfur-containing and nitrogen-containing compounds in the air is achieved, and stable and efficient adsorbability of benzene, toluene and other volatile toxic gas is achieved; the skeleton of the modified carbon fiber has strong adaptability to acid, alkali, high temperature and other environments, so that a long-term stable effect of adsorption and purification is achieved; and in addition, the usage mode is flexible, and good applicability to factories, homes and public places is achieved.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a preparation method of an organic gas adsorption purification agent. Background technique [0002] On a global scale, since the industrialization revolution, with the rapid development of the petrochemical industry and the development of the fuel-consuming automobile industry, environmental pollution has become increasingly aggravated, and a large amount of exhaust gas from motor vehicles has caused great harm to people's travel and atmospheric environment. At the same time, the volatilization of organic solvents used in household interiors such as latex paint, wallpaper, floors, heat insulation materials, adhesives, and outdoors such as paint factories, semiconductor factories or printing factories will also cause air pollution. . [0003] In terms of composition, organic gases mainly include formaldehyde, ammonia, ethylene glycol, esters and other substances. If ...

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Problems solved by technology

[0005] At the same time, because the carbon fiber preparation process includes carbonization or graphitization, the carbon atom stacking orientation on the carbon fiber surface is more consistent, and the atomic layer spacing is smaller, so the fiber surface is non-polar and chemically inert. In addition, the carbon fiber surface has hydrophobic, Shortcomings such as smoothness and low adsorption performance lead to poor interfacial bonding between carbon fiber and its composite material