American Journal of Analytical Chemistry

Volume 7, Issue 5 (May 2016)

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

Google-based Impact Factor: 1.71  Citations  h5-index & Ranking

Better Refined Adsorption Isotherm than BET Equation

HTML  XML Download Download as PDF (Size: 1142KB)  PP. 421-433  
DOI: 10.4236/ajac.2016.75039    3,526 Downloads   5,039 Views  Citations


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.

Share and Cite:

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

Copyright © 2023 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.