The adsorption on the surface of honeycomb activated carbon is divided into physical adsorption and chemical adsorption.
Physical adsorption occurs mainly due to the van der Waals force between molecules. This gravitational force is generated by the instantaneous asymmetric dipole (excitation dipole) of electrons in molecules or atoms. The same principle applies to a polar molecule. Polarize another molecule, create an induced dipole moment and attract each other.
activated charcoal wholesale canada During the adsorption process, neither the adsorbed molecules nor the surface composition of the adsorbent will change, that is to say, the properties will not change as a result.
In the case of chemical adsorption, there is a certain chemical effect on the surface of the adsorbent. If there is electron exchange, transfer or chemical adsorbent transfer or sharing between them, the mutual conversion will have a better effect on electrons, which can lead to the rearrangement of atoms and the formation or destruction of chemical bonds. Will it be reorganized if it is destroyed?
Physical adsorption is usually very fast, honeycomb activated carbon physical adsorption can assist PM2.5 particulate items in the air, and is reversible, the reversible and irreversible conditions are mutual. The adsorbed gas is adsorbed by honeycomb activated carbon under certain conditions.
Quantitative desorption without changing the surface properties of gases and solids. Physical adsorption is an exothermic process, and its heat of adsorption is close to the heat of liquefaction of gas.
yongruida carbon The honeycomb activated carbon adsorption heat is a bit difficult to understand. The physical adsorption of gas is similar to the process of gas liquefaction. You can look at the experimental results for details.
Therefore, it can only happen below the critical temperature, and the repairing ability of the critical point is strong, and it can usually be performed significantly at a lower temperature (such as near the boiling point of the adsorbate gas). The relative adsorption will be stronger when the temperature is low.
Chemical adsorption is irreversible, and physical adsorption is reversible, which shows contrast.
