A comment on the derivation of the Langmuir isotherm for the adsorption kinetics
By: by Chris Frenzen
Contributors: Naval Postgraduate School (U.S.). Dept. of Mathematics
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1991
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 12
Subjects: Surface chemistry
Other titles: NPS-MA-91-010.
Description: The justification for the use of the Langmuir isotherm, basically an equilibrium relation, to relate the subsurface concentration C(t) at time t to the adsorbed surface concentration Gamma (t) depends, in many adsorption kinetics models, on the presence of two very different time scales. Though this was implicit in the recent derivation in 1, it was not specifically pointed out. The second long time scale is particularly important because it governs the time evolution of C(t), the subsurface concentration, and helps to determine when the Langmuir isotherm approximation is valid. Here the Langmuir isotherm is derived mathematically from the adsorption kinetics equations governing the surface concentration, the subsurface concentration and the bulk phase adjacent to the surface.
Notes: Title from cover.

"NPS-MA-91-010."

"Technical report for period February 1991 - April 1991."

AD A236 709.

Includes bibliographical references (p. 12)

aq/aq cc:9116 06/04/99.