Better Refined Adsorption Isotherm than BET Equation

摘要

During studying the heat capacity of metals and brightening more than the original Lena’s image, we realize that the temperature increasing term obtained binomial expansion is used in the adsorption increasing term src=image/10.5923.j.aac.20170701.03_001.gif> and we could derive the total adsorption isotherm equation with it. In the first layer the quantization does not occur and from src=image/10.5923.j.aac.20170701.03_002.gif> to src=image/10.5923.j.aac.20170701.03_003.gif> layer the quantization occurs. So as to get the total adsorption isotherm equation we add the quantized terms of the second to src=image/10.5923.j.aac.20170701.03_004.gif> layers to the non-quantized term of the first layer. All terms are based on the unit surface sites. Hence the adsorption equations are derived much better than BET equation. The surface area is calculated through the integration of the adsorption isotherm equation from the inflection point to the wanted relative pressure.