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Modification of zeolites Y and ZSM-5 adsorption of nanoparticles of transition metals from back-micellar solutions for separation of gas mixturesстатья
Дата последнего поиска статьи во внешних источниках: 8 апреля 2022 г.
- Авторы: Dudoladov A., Alekhina M., Souvorova O., Revina A.
- Журнал: BIO Web of Conferences
- Том: 30
- Год издания: 2021
- Издательство: EDP Sciences
- Местоположение издательства: France
- Номер статьи: 02004
- DOI: 10.1051/bioconf/20213002004
- Аннотация: Based on granulated synthetic zeolites NaY, HY and ZSM-5, adsorbents containing nanoparticles of silver, cobalt, molybdenum and tungsten have a lower surface polarity compared to the original zeolites were obtained, which is reflected in the selectivity of a number of samples to argon, the molecule of which interacts with zeolites only due to non-specific forces. Modification was performed by interacting with reverse-micellar solutions of nanoparticles. The actual sizes of metal particles and their distribution over the surface of the modified samples of zeolites have been determined by the method of transmission electron microscopy. The samples’ equilibrium adsorption capacities for oxygen and argon at 25°С and atmospheric pressure and the separation coefficient of the argon–oxygen mixture as a ratio of the Henry coefficients have been determined. It has been demonstrated that samples of the NaY zeolite modified with silver nanoparticles have the separation coefficient value of the argon–oxygen gas mixture equal to 1.6.
- Добавил в систему: Алехина Марина Борисовна