The Effect of Microwave Treatment on the Adsorption Capacity of AlZr(Yb) Oxide Powders
- Autores: Vakhrushev N.E.1, Mikhalenko I.I.2, Il’icheva A.A.1, Konovalov A.A.1
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Afiliações:
- Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, 119334, Moscow, Russia
- Peoples’ Friendship University of Russia, 117198, Moscow, Russia
- Edição: Volume 59, Nº 3 (2023)
- Páginas: 269-276
- Seção: ФИЗИКО-ХИМИЧЕСКИЕ ПРОЦЕССЫ НА МЕЖФАЗНЫХ ГРАНИЦАХ
- URL: https://rjraap.com/0044-1856/article/view/663838
- DOI: https://doi.org/10.31857/S0044185623700328
- EDN: https://elibrary.ru/SEZGVB
- ID: 663838
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Resumo
Results are presented of the study of sorption of anion-active dye and dichromate ions from aqueous solutions by powders of 35 mol % Al2O3–65%[ZrO2–3% Yb2O3] synthesized by the sol–gel method at 10°C in the presence of polyvinylpyrrolidone are presented. The obtained hydrogels were dried in the traditional way at 180°C and with microwave drying without calcination and with calcination at 500°C. The sorbents were characterized by TG/DSC, XRD, IR spectroscopy, and BET/BJH and tested under conditions of long-term and dynamic sorption. The calcined sample with microwave drying showed there to be an increased degree of extraction of test molecules and surface activity—the initial rate and limiting adsorption calculated from the model of the two-point form of substance adsorption.
Sobre autores
N. Vakhrushev
Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, 119334, Moscow, Russia
Email: vakhrushevn@yandex.ru
Россия, 119334, Москва, Ленинский проспект, 49
I. Mikhalenko
Peoples’ Friendship University of Russia, 117198, Moscow, Russia
Email: mikhalenko_ii@pfur.ru
Россия, 117198, Москва, улица Миклухо-Маклая, 6
A. Il’icheva
Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, 119334, Moscow, Russia
Email: mikhalenko_ii@pfur.ru
Россия, 119334, Москва, Ленинский проспект, 49
A. Konovalov
Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, 119334, Moscow, Russia
Autor responsável pela correspondência
Email: mikhalenko_ii@pfur.ru
Россия, 119334, Москва, Ленинский проспект, 49
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