Thermodynamics of the adsorption of organic molecules on graphitized carbon black modified with a monolayer of 5-hydroxy-6-methyluracil


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

Thermodynamic characteristics of the adsorption of alkanes, alcohols, arenes, and esters on graphitized carbon black with a deposited monolayer (0.17%) of 5-hydroxy-6-methyluracil are studied by means of inverse gas chromatography at infinite dilution. It is established that size effects (violation of the additivity of molar changes in internal energy and the entropy of adsorption for pairs of molecules of one homologous series that differ by one methyl group) are observed when organic molecules are adsorbed on the surface of the resulting adsorbent. The size effects are similar to those observed when 1% 5-hydroxy-6-methyluracil is deposited on graphitized carbon black. It is concluded that the observed violation of additivity is associated with cavities in the supramolecular structure.

About the authors

V. Yu. Gus’kov

Bashkir State University

Author for correspondence.
Email: guscov@mail.ru
Russian Federation, Ufa, 450076

S. P. Ivanov

Ufa Institute of Chemistry

Email: guscov@mail.ru
Russian Federation, Ufa, 450054

Yu. F. Shaikhitdinova

Bashkir State University

Email: guscov@mail.ru
Russian Federation, Ufa, 450076

F. Kh. Kudasheva

Bashkir State University

Email: guscov@mail.ru
Russian Federation, Ufa, 450076

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2016 Pleiades Publishing, Ltd.