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Nanocomposites Based on Calcium Alginate and Carbon Nanotubes for Selective Adsorption of Argon from a Mixture with Oxygenстатья
Дата последнего поиска статьи во внешних источниках: 3 ноября 2021 г.
- Авторы: Dudoladov A.O., Alekhina M.B., Reshetnikova Yu A., Tsygankov P.Yu
- Журнал: Protection of Metals and Physical Chemistry of Surfaces
- Том: 57
- Номер: 5
- Год издания: 2021
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 899
- Последняя страница: 905
- DOI: 10.1134/S2070205121050063
- Аннотация: Nanocomposites were synthesized on the basis of calcium alginate and carbon nanotubes by thesol–gel method, and their adsorption properties with respect to argon were investigated to separate it from amixture with oxygen. The adsorbents were characterized using thermogravimetric analysis and scanning electron microscopy (SEM). SEM micrographs of the samples indicated that carbon nanotubes are located onthe surface of the alginate matrix. It is shown that the introduction of carbon nanotubes into the structure ofnanocomposites led to an increase in the selectivity of these materials with respect to argon. The separationcoefficients of the argon–oxygen mixture were calculated as the ratio of the Henry coefficients from theadsorption isotherms of argon and oxygen at 25°C, the maximum value of the separation factor was 1.9.
- Добавил в систему: Алехина Марина Борисовна