Preparation method of modified activated carbon for purifying formaldehyde in air

Abstract

The invention discloses a preparation method of modified activated carbon for purifying formaldehyde in air. The preparation method comprises the following steps: (1) taking and putting polyene polyamine and a derivative thereof in a beaker and adding tap water or distilled water to prepare a certain concentration of solution; (2) taking a certain amount of activated carbon and adding in the solution prepared in the step (1) for stirring; (3) putting the beaker holding a mixed solution prepared in the step (2) in a water bath kettle to heat for 10-24 hours, wherein the heating temperature is 20-50 DEG C; (4) filtering the mixed solution heated in the step (3) to obtain activated carbon adsorbed with the polyene polyamine and the derivative thereof; (5) putting the activated carbon adsorbedwith the polyene polyamine and the derivative thereof and filtered in the step (4) in a drying box for drying to obtain the modified activated carbon. The modified activated carbon prepared by adopting the preparation method disclosed by the invention has good absorption performance of the formaldehyde in the air, is easily-available in raw material, simple in preparation method and can be widelyapplied to the air purification field.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to a preparation method of modified activated carbon for purifying formaldehyde in air. Background technique [0002] At present, with the gradual development of the real estate industry, the frequency of residents changing houses and buying houses is gradually increasing, and the replacement and addition of furniture are also gradually developed. However, because newly renovated houses and furniture contain a lot of Although the residents have ventilated and dried for a long time before moving into the renovated house, according to the chemical characteristics of formaldehyde, it stays in the residence for a long time, and formaldehyde has a great impact on the human body's sense of smell, allergies, and lung function. , liver function and the immune system of the human body all have great adverse effects, and the human body cannot be exposed to it for a long time. If the...

AI Technical Summary

Problems solved by technology

[0002] At present, with the gradual development of the real estate industry, the frequency of residents changing houses and buying houses is gradually increasing, and the replacement and addition of furniture are also gradually developed. However, because newly renovated houses and furniture contain a lot of Although the residents have ventilated and dried for a long time before moving into the renovated house, according to the chemical characteristics of formaldehyde, it stays in the residence for a long time, and formaldehyde has a great impact on the human body's sense of smell, allergies, and lung function. , liver function and the immune system of the human body have a great adverse effect, the human body cannot be exposed to it for a long time