HOME > Technical Information > Seminar on Adsorption > Specific Surface Area : Specific Surface Area and Particle Size

Seminar on Adsorption : Specific Surface Area

Specific Surface Area and Particle Size

The specific surface area is increased as the particle size becomes small. The specific surface area is also increased if the particle has pores. The specific surface area is important for the industrial process and chemical reaction. Even with the same material that has the same weight and volume, the surface activity and adsorption volume are changed according to the specific surface area. So it is important to measure the specific surface area to evaluate the activity and adsorption capacity of materials. (e.g. catalysis and adsorbent)

The following figure shows the relationship between the cube and surface area. As shown, the sample with the same volume and weight can have the different surface area.

Particle size and surface area

The following graph shows the relationship between the particle size of non-porous spherical silica and specific surface area. It is calculated using the following equation with the silica density of 2.2g/cm3.

Particle size and specific surface area in Silica case

pagetop

BEL Europe GmbH.

   

NIKKISO

    
COPYRIGHT © BEL Europe GmbH. All Rights Reserved. SitemapHandling of personal informationTerms of use