ISSN:
1435-1536
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Description / Table of Contents:
Zusammenfassung Die Adsorption kleiner polarer Moleküle an polaren Adsorbentien, z. B. Wasser an Proteinen, wurde auf der Basis des BET-Modells im Bereich kleiner relativer Dampfdrücke mit den Methoden der statistischen Thermodynamik behandelt. Nach der entwickelten Theorie ist es möglich, die Anzahl und das durchschnittliche Gewicht von Adsorptionsenergiefaktoren zu ermitteln.
Notes:
Summary In order to explain the low relative vapor pressure region in experimental adsorption isotherms of polar small molecules by polar adsorbents — as is the case with the protein-water system — the statistical thermodynamics of adsorption by a multi-component surface was studied on the basis of the BET model. The derived adsorption isotherm gives the same expression as the simple summation of the BET equation over all kinds of polar sites. The mathematical examination reveals a condition necessary for the approximation of the derived adsorption isotherm to the usual straight “BET” line. Besides, according to the present theory, it is possible to derive the number and weight averages of adsorption energy factors (C of BET theory) by the analysis of low vapor pressure region.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01510796
