Sorption of ammonia and nitrogen on cellulose acetate |
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| Authors: | I V Vorotyntsev P N Drozdov G M Mochalov N N Smirnova S S Suvorov |
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| Institution: | (1) Lobachevskii State University, Nizhni Novgorod, 603950, Russia;(2) Nizhni Novgorod State Technical University, Nizhni Novgorod, 603600, Russia;(3) OOO Firma Khorst, Moscow, Russia |
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| Abstract: | Adsorption isotherms of ammonia and nitrogen on cellulose acetate in the temperature range 303–333 K are measured by reversed-phase chromatography. It is established that ammonia specifically interacts with the polymer matrix of the sorbent. The experimental data are described in terms of the Laatikainen-Lindstrom quasi-chemical model of vapor sorption. The enthalpies of sorption are determined, and their dependences on the ammonia and nitrogen concentrations in the sorbent are established. |
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