Gas Chromatographic Study of Specific Physisorption by Activated Carbons

Gas Chromatographic Study of Specific Physisorption by Activated Carbons

Gas chromatography has been used to study the adsorption of C 2 –C 6 n-alkenes and methanol by activated carbons. Although the higher alkenes adsorb non-specifically only, ethene can also undergo specific interactions with hydroxyl surface sites. The adsorption of alcohols is effected by both adsorb...

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Main Authors: P.J.M. Carrott, M. Brotas de Carvalho, K.S.W. Sing
Format: Article
Language:English
Published: Hindawi - SAGE Publishing 1989-06-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1177/026361748900600204
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spelling doaj-30a1e100ba014e6da3bdc6333b5543c72021-04-02T09:52:13ZengHindawi - SAGE PublishingAdsorption Science & Technology0263-61742048-40381989-06-01610.1177/026361748900600204Gas Chromatographic Study of Specific Physisorption by Activated CarbonsP.J.M. Carrott0M. Brotas de Carvalho1K.S.W. Sing2 Departamento de Quimica, Faculdade de Ciências, Universidade da Lisboa, Rua da Escola Politécnica, 588, 1200 Lisboa, Portugal Departamento de Quimica, Faculdade de Ciências, Universidade da Lisboa, Rua da Escola Politécnica, 588, 1200 Lisboa, Portugal Department of Chemistry, Brunei University, Uxbridge, Middlesex, UB8 3PH, UKGas chromatography has been used to study the adsorption of C 2 –C 6 n-alkenes and methanol by activated carbons. Although the higher alkenes adsorb non-specifically only, ethene can also undergo specific interactions with hydroxyl surface sites. The adsorption of alcohols is effected by both adsorbate–adsorbent and adsorbate–adsorbate interactions to such an extent that only in the case of methanol is it possible to obtain reliable chromatographic results. Methanol can undergo specific interactions with both hydroxyl and carbonyl surface sites. The use of methanol and ethene in combination can be used to follow changes in surface polarity brought about by surface modification procedures.https://doi.org/10.1177/026361748900600204
collection DOAJ
language English
format Article
sources DOAJ
author P.J.M. Carrott
M. Brotas de Carvalho
K.S.W. Sing
spellingShingle P.J.M. Carrott
M. Brotas de Carvalho
K.S.W. Sing
Gas Chromatographic Study of Specific Physisorption by Activated Carbons
Adsorption Science & Technology
author_facet P.J.M. Carrott
M. Brotas de Carvalho
K.S.W. Sing
author_sort P.J.M. Carrott
title Gas Chromatographic Study of Specific Physisorption by Activated Carbons
title_short Gas Chromatographic Study of Specific Physisorption by Activated Carbons
title_full Gas Chromatographic Study of Specific Physisorption by Activated Carbons
title_fullStr Gas Chromatographic Study of Specific Physisorption by Activated Carbons
title_full_unstemmed Gas Chromatographic Study of Specific Physisorption by Activated Carbons
title_sort gas chromatographic study of specific physisorption by activated carbons
publisher Hindawi - SAGE Publishing
series Adsorption Science & Technology
issn 0263-6174
2048-4038
publishDate 1989-06-01
description Gas chromatography has been used to study the adsorption of C 2 –C 6 n-alkenes and methanol by activated carbons. Although the higher alkenes adsorb non-specifically only, ethene can also undergo specific interactions with hydroxyl surface sites. The adsorption of alcohols is effected by both adsorbate–adsorbent and adsorbate–adsorbate interactions to such an extent that only in the case of methanol is it possible to obtain reliable chromatographic results. Methanol can undergo specific interactions with both hydroxyl and carbonyl surface sites. The use of methanol and ethene in combination can be used to follow changes in surface polarity brought about by surface modification procedures.
url https://doi.org/10.1177/026361748900600204
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AT mbrotasdecarvalho gaschromatographicstudyofspecificphysisorptionbyactivatedcarbons
AT kswsing gaschromatographicstudyofspecificphysisorptionbyactivatedcarbons
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