Thermodynamics of (NH4 +) cation adsorption under static conditions
Date
2018-01-20
Journal Title
Journal ISSN
Volume Title
Publisher
Lviv Politechnic Publishing House
Abstract
Експериментально досліджено адсорбцію
йонів амонію природним цеолітом та Al2O3 за статичних
умов. Обґрунтовано причину зміни рН досліджуваного розчину
під час адсорбції йонів амонію на Al2O3. Побудовано діаграму
складу двокомпонентної системи і встановлено склад адсорб-
ційної системи в стані рівноваги. Здійснено термодинамічні
розрахунки адсорбційної системи Al2O3–NH4Cl–H2O. Вста-
новлено, що поглинання амонію оксидом алюмінію відбувається
за механізмом фізичної адсорбції.
The adsorption of ammonium ions by natural zeolite and Al2O3 under static conditions has been investigated. The reason for changing the investigated solution pH during adsorption of ammonium ions on Al2O3 has been grounded. A phase diagram of the twocomponent system has been constructed and the composition of the adsorption system in the state of equilibrium has been determined. The thermodynamic calculations of the adsorption system Al2O3–NH4Cl–H2O have been carried out. It was established that the adsorption of ammonium with aluminum oxide occurs via the mechanism of physical adsorption.
The adsorption of ammonium ions by natural zeolite and Al2O3 under static conditions has been investigated. The reason for changing the investigated solution pH during adsorption of ammonium ions on Al2O3 has been grounded. A phase diagram of the twocomponent system has been constructed and the composition of the adsorption system in the state of equilibrium has been determined. The thermodynamic calculations of the adsorption system Al2O3–NH4Cl–H2O have been carried out. It was established that the adsorption of ammonium with aluminum oxide occurs via the mechanism of physical adsorption.
Description
Keywords
адсорбція, термодинаміка, йони амонію, цеоліт, Al2O3, adsorption, thermodynamics, ammonium ions, zeolite, Al2O3
Citation
Thermodynamics of (NH4 +) cation adsorption under static conditions / Vira Sabadash, Jaroslaw Gumnitsky, Oksana Lyuta, Iryna Pochapska // Chemistry & Chemical Technology. — Lviv : Lviv Politechnic Publishing House, 2018. — Vol 12. — No 2. — P. 143–146.