American Journal of Analytical Chemistry

Volume 7, Issue 5 (May 2016)

ISSN Print: 2156-8251   ISSN Online: 2156-8278

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Better Refined Adsorption Isotherm than BET Equation

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DOI: 10.4236/ajac.2016.75039    3,555 Downloads   5,156 Views  Citations
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ABSTRACT

During studying the heat capacity of metals and brightening more than the original Lena’s image, the temperature increasing term obtained in binomial expansion is transformed into the adsorption increasing term and thereafter we have derived the total adsorption rate equation with it. In the first layer the quantization does not occur and from 2nd layer to nth layer the quantization occurs. So as to get the total adsorption rate equation we add the quantized terms of the second to nth layers to the non-quantized term of the first layer. All terms are based on the unit surface sites. Instead of the unit surface sites, the new adsorption site term appears in the denominator of the adsorption equation. Hence the adsorption equations come out much better than BET equation. The surface area is also calculated through the integration of the adsorption isotherm equation excluding the first layer adsorption equation from the inflection point to the wanted relative pressure.

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Kim, D. (2016) Better Refined Adsorption Isotherm than BET Equation. American Journal of Analytical Chemistry, 7, 421-433. doi: 10.4236/ajac.2016.75039.

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