Hemp-stem active carbon and preparation method, forming method and application thereof

Abstract

The invention discloses hemp-stem active carbon, of which the specific surface area is 800-3,000m<2> / g, the total pore volume is 0.5-1cm<3> / g and the pore diameter is 0.5-4nm. The hemp-stem active carbon has a layered micropore-mesopore structure. The invention further discloses a preparation method of the hemp-stem active carbon, a forming method of hemp-stem active carbon and application of formed hemp-stem active carbon in preparation of a filter element of a water purifier. The hemp-stem active carbon provided by the invention has a layered micropore-mesopore structure, a super-large specific surface area and a high pore volume and can absorb various impurities in water more easily.

Description

technical field

[0001] The invention relates to the technical field of activated carbon, in particular to a hemp stalk activated carbon and its preparation, molding method and application. Background technique

[0002] Activated carbon has a huge specific surface area (1000-3500m 2 / g) and developed pore structure with excellent adsorption performance, has been widely used in water removal and gas purification. As an adsorbent with excellent adsorption capacity, activated carbon has excellent chemical stability. Because it is insoluble in water or organic solvents, and resistant to acid, alkali and heat, it is widely used in food processing, environmental protection, chemical industry, pharmaceutical refining, Chemical protection and other fields. In terms of drinking water purification, activated carbon not only has the functions of decolorization and deodorization, but also can remove chlorine, heavy metal ions and organic molecules. In recent years, people are increasi...