Mechanochemical synthesis of adsorbents based on silicon oxycarbide composites
In the work, an attempt was made to mechanochemically synthesize silicon oxycarbide composites from activated carbon and silica. Structure of the composites was studied using powder X-ray diffraction and IR spectroscopy. Formation of silicon oxycarbides was confirmed by presence of Si-O-C bond. Infl...
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EDP Sciences
2021-01-01
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doaj-c9f7971edd23468e9cc07bb3d1471ec82021-06-11T07:18:50ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012660201310.1051/e3sconf/202126602013e3sconf_ti2021_02013Mechanochemical synthesis of adsorbents based on silicon oxycarbide compositesGrishin I.S.Smirnov N.N.In the work, an attempt was made to mechanochemically synthesize silicon oxycarbide composites from activated carbon and silica. Structure of the composites was studied using powder X-ray diffraction and IR spectroscopy. Formation of silicon oxycarbides was confirmed by presence of Si-O-C bond. Influence of the raw materials ratio on structural and chemical properties of resulting composites was revealed. With an increase of silica share in the initial mixture, a decrease in specific surface area and pore volume was noted, as well as an increase of the concentration of surface functional groups. Samples of the composites were tested in processes of sorption of methyl orange and fluoride ions. It was established that adsorption capacity for methyl orange decreased, while that for fluoride ions significantly increased comparing to activated carbon.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/42/e3sconf_ti2021_02013.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Grishin I.S. Smirnov N.N. |
spellingShingle |
Grishin I.S. Smirnov N.N. Mechanochemical synthesis of adsorbents based on silicon oxycarbide composites E3S Web of Conferences |
author_facet |
Grishin I.S. Smirnov N.N. |
author_sort |
Grishin I.S. |
title |
Mechanochemical synthesis of adsorbents based on silicon oxycarbide composites |
title_short |
Mechanochemical synthesis of adsorbents based on silicon oxycarbide composites |
title_full |
Mechanochemical synthesis of adsorbents based on silicon oxycarbide composites |
title_fullStr |
Mechanochemical synthesis of adsorbents based on silicon oxycarbide composites |
title_full_unstemmed |
Mechanochemical synthesis of adsorbents based on silicon oxycarbide composites |
title_sort |
mechanochemical synthesis of adsorbents based on silicon oxycarbide composites |
publisher |
EDP Sciences |
series |
E3S Web of Conferences |
issn |
2267-1242 |
publishDate |
2021-01-01 |
description |
In the work, an attempt was made to mechanochemically synthesize silicon oxycarbide composites from activated carbon and silica. Structure of the composites was studied using powder X-ray diffraction and IR spectroscopy. Formation of silicon oxycarbides was confirmed by presence of Si-O-C bond. Influence of the raw materials ratio on structural and chemical properties of resulting composites was revealed. With an increase of silica share in the initial mixture, a decrease in specific surface area and pore volume was noted, as well as an increase of the concentration of surface functional groups. Samples of the composites were tested in processes of sorption of methyl orange and fluoride ions. It was established that adsorption capacity for methyl orange decreased, while that for fluoride ions significantly increased comparing to activated carbon. |
url |
https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/42/e3sconf_ti2021_02013.pdf |
work_keys_str_mv |
AT grishinis mechanochemicalsynthesisofadsorbentsbasedonsiliconoxycarbidecomposites AT smirnovnn mechanochemicalsynthesisofadsorbentsbasedonsiliconoxycarbidecomposites |
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1721382933553479680 |