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...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publications
1989-06-01
|
| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/026361748900600204 |
| _version_ | 1797282347686559744 |
|---|---|
| author | P.J.M. Carrott M. Brotas de Carvalho K.S.W. Sing |
| author_facet | P.J.M. Carrott M. Brotas de Carvalho K.S.W. Sing |
| author_sort | P.J.M. Carrott |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-07T17:11:30Z |
| format | Article |
| id | doaj.art-30a1e100ba014e6da3bdc6333b5543c7 |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T17:11:30Z |
| publishDate | 1989-06-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-30a1e100ba014e6da3bdc6333b5543c72024-03-03T00:54:51ZengSAGE PublicationsAdsorption 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 |
| 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 |
| title | 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_short | Gas Chromatographic Study of Specific Physisorption by Activated Carbons |
| title_sort | gas chromatographic study of specific physisorption by activated carbons |
| url | https://doi.org/10.1177/026361748900600204 |
| work_keys_str_mv | AT pjmcarrott gaschromatographicstudyofspecificphysisorptionbyactivatedcarbons AT mbrotasdecarvalho gaschromatographicstudyofspecificphysisorptionbyactivatedcarbons AT kswsing gaschromatographicstudyofspecificphysisorptionbyactivatedcarbons |