Activated carbon
Activated carbon is a black powder or granular amorphous carbon. Activated carbon main components in addition to carbon, there are oxygen, hydrogen and other elements. Activated carbon in the structure because the microcrystalline carbon is irregularly arranged in the cross-connection between the pores, in the activation will produce carbon tissue defects, so it is a porous carbon, the bulk density is low, the specific surface area. The pore size of the activated carbon can be divided into: ▪ Large hole: Radius\u003e 20 000 nm ▪ Transition hole: 150 to 20 000 nm ▪ Micropores: Radius \u003c150nm Activated carbon has powder charcoal, granulated charcoal and crushed carbon. ...