The difference between activated carbon and silica gel - II

3. Form and color

Activated Carbon

Activated carbon usually exists in granular form. The color may vary depending on the preparation method and raw materials, but it is generally black or dark brown.

Silica gel

Silica gel comes in various forms, including granular, spherical, etc. In terms of color, silica gel can be transparent, blue or orange, among which color-changing silica gel will change color according to the degree of moisture absorption.

4. Reusability

Activated Carbon

The reusability of activated carbon depends on the substances it adsorbs and the regeneration conditions. In some cases, activated carbon can be regenerated by heating and other methods to restore its adsorption capacity.

Silica gel

Silica gel also has good reusability. After absorbing moisture, the adsorbed moisture can be removed by heating and other methods to restore its moisture absorption capacity.

To sum up, there are obvious differences between activated carbon and silica silica gel in terms of composition, properties, application fields, shape, color, and reusability. In practical applications, appropriate materials should be selected according to specific needs.