Structural properties of activated carbon

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In general, all compounds with conjugate double bond structure, activated carbon is easy to adsorption, the more often double bond, activated carbon on its adsorption capacity is greater.
This is mainly because activated carbon has a hexagonal structure formed by the combination of covalent bonds (with large bond structure properties of aromatic ring), which is easy to be mutual with common double bonds.Activated carbon has adsorption effect on gas or solute of some solution, and some are adsorbed on the surface of carbon, and some are adsorbed inside the structure of carbon.
The size of the adsorption force is related to the total surface area of the activated carbon, the finer the carbon particles, the greater the total surface area, the stronger the adsorption force, and vice versa.
The same fineness of activated carbon, the strength of its adsorption and the structure of the adsorbed material.
In general, all compounds with conjugate double bond structure, activated carbon is easy to adsorption, the more often double bond, activated carbon on its adsorption capacity is greater.
This is mainly because activated carbon has a hexagonal structure formed by the combination of covalent bonds (with large bond structure properties of aromatic ring), which is easy to be mutual with common double bonds.
In the three types of activated carbon, powdered activated carbon adsorption strength is the strongest, granular activated carbon, nylon activated carbon is the weakest.
These three different specifications of activated carbon, similar to the activity of the different level, level two and three products.
In the chromatographic separation, according to the characteristics of the separated substances, select the appropriate adsorption activity of activated carbon, the adsorption of activated carbon is correct or not is the key to the success of the separation.
When the material to be separated is not easy to be adsorbed by activated carbon, it is necessary to choose activated carbon with strong adsorption.
When the material to be separated is easily adsorbed by activated carbon, it is necessary to choose the activated carbon with weak adsorption.
When separating a sample for the first time, the second type of activated carbon is usually used first.