Communications

Alumina-based desiccants modified with potassium, rubidium, and cesium cations: surface properties and kinetics of adsorption

E. P. Meshcheryakov^a, M. P. Shcherbakova-Sandu^a, S. I. Reshetnikov^b, I. A. Kurzina<sup>a

a</sup> Department of Chemistry, National Research Tomsk State University, 634050 Tomsk, Russian Federation
^b G. K. Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russian Federation

Аннотация: The effect of γ-Al₂O₃ modification with the cations K⁺, Rb⁺, and Cs⁺ on its textural characteristics and acid–base and adsorption properties with respect to water was studied. The kinetics of water vapor adsorption on the test samples was described by the Gluckauf equation to model processes occurring under the influence of internal diffusion. The adsorption capacity of the modified materials was approximately 30–40% higher than that of the unmodified Al₂O₃.

Ключевые слова: alumina, modification, acid–base properties, kinetics, water adsorption.

Поступила в редакцию: 28.10.2024
Принята в печать: 10.01.2025

Язык публикации: английский

DOI: 10.71267/mencom.7669

Реферативные базы данных:

• 
•