Elucidating the Changes in Activated Carbon Pore Structure as a Result of -Butylbenzene Adsorption and its Desorption by Means of Supercritical Carbon Dioxide

Inverse gas chromatography was applied to characterize the changes in pore structure of activated carbon samples (commercial, de-ashed, and de-ashed and oxidized) before and after the adsorption of tert -butylbenzene, and after its desorption by means of supercritical carbon dioxide. The slit-like m...

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Main Author: Henryk Grajek
Format: Article
Language:English
Published: SAGE Publishing 2001-05-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1260/0263617011494196
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author Henryk Grajek
author_facet Henryk Grajek
author_sort Henryk Grajek
collection DOAJ
description Inverse gas chromatography was applied to characterize the changes in pore structure of activated carbon samples (commercial, de-ashed, and de-ashed and oxidized) before and after the adsorption of tert -butylbenzene, and after its desorption by means of supercritical carbon dioxide. The slit-like micropore model was used for the description of the pore structure. It was shown that tert -butylbenzene was desorbed with greater difficulty from samples containing basic impurities. Changes in the amounts of surface groups (acidic and basic) during the desorption process were not significant.
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institution Kabale University
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2048-4038
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series Adsorption Science & Technology
spelling doaj-art-43d967e490d042a6a00c7d3b4cc5444e2025-01-03T01:20:01ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382001-05-011910.1260/0263617011494196Elucidating the Changes in Activated Carbon Pore Structure as a Result of -Butylbenzene Adsorption and its Desorption by Means of Supercritical Carbon DioxideHenryk GrajekInverse gas chromatography was applied to characterize the changes in pore structure of activated carbon samples (commercial, de-ashed, and de-ashed and oxidized) before and after the adsorption of tert -butylbenzene, and after its desorption by means of supercritical carbon dioxide. The slit-like micropore model was used for the description of the pore structure. It was shown that tert -butylbenzene was desorbed with greater difficulty from samples containing basic impurities. Changes in the amounts of surface groups (acidic and basic) during the desorption process were not significant.https://doi.org/10.1260/0263617011494196
spellingShingle Henryk Grajek
Elucidating the Changes in Activated Carbon Pore Structure as a Result of -Butylbenzene Adsorption and its Desorption by Means of Supercritical Carbon Dioxide
Adsorption Science & Technology
title Elucidating the Changes in Activated Carbon Pore Structure as a Result of -Butylbenzene Adsorption and its Desorption by Means of Supercritical Carbon Dioxide
title_full Elucidating the Changes in Activated Carbon Pore Structure as a Result of -Butylbenzene Adsorption and its Desorption by Means of Supercritical Carbon Dioxide
title_fullStr Elucidating the Changes in Activated Carbon Pore Structure as a Result of -Butylbenzene Adsorption and its Desorption by Means of Supercritical Carbon Dioxide
title_full_unstemmed Elucidating the Changes in Activated Carbon Pore Structure as a Result of -Butylbenzene Adsorption and its Desorption by Means of Supercritical Carbon Dioxide
title_short Elucidating the Changes in Activated Carbon Pore Structure as a Result of -Butylbenzene Adsorption and its Desorption by Means of Supercritical Carbon Dioxide
title_sort elucidating the changes in activated carbon pore structure as a result of butylbenzene adsorption and its desorption by means of supercritical carbon dioxide
url https://doi.org/10.1260/0263617011494196
work_keys_str_mv AT henrykgrajek elucidatingthechangesinactivatedcarbonporestructureasaresultofbutylbenzeneadsorptionanditsdesorptionbymeansofsupercriticalcarbondioxide