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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Main Authors: Grishin I.S., Smirnov N.N.
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/42/e3sconf_ti2021_02013.pdf
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spelling 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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