An IGC Study of the Role of Washing Procedures on the Adsorption Properties of Activated Carbons
Inverse gas chromatography (IGC) was used to study the influence of different washing treatments (acid, basic and combined washings) on the adsorption properties of two different activated carbons (steam- and chemically-activated). Chemical and textural characterization was carried out by the use of...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2007-04-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361707782398245 |
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| _version_ | 1850083152602595328 |
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| author | Eva Díaz Salvador Ordóñez Aurelio Vega |
| author_facet | Eva Díaz Salvador Ordóñez Aurelio Vega |
| author_sort | Eva Díaz |
| collection | DOAJ |
| description | Inverse gas chromatography (IGC) was used to study the influence of different washing treatments (acid, basic and combined washings) on the adsorption properties of two different activated carbons (steam- and chemically-activated). Chemical and textural characterization was carried out by the use of nitrogen adsorption, ICP-MS and temperature programmed desorption methods. The adsorption capacity and the interaction strength (sub-divided into dispersive and specific components) were determined by IGC. Washing procedures (especially those involving acid washing) removed mineral ash almost completely from the carbon samples studied. The steam-activated carbon exhibited the best adsorptive behaviour. The removal of mineral ash enhanced the adsorption of the compounds studied, especially alkanes. Washing procedures also modified the chemical structures of the organic functionalities, but this did not appear to be relevant as far as the adsorption properties of these materials were concerned. |
| format | Article |
| id | doaj-art-ea5aa1ae398842289e4cb78ab0df80f7 |
| institution | DOAJ |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2007-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-ea5aa1ae398842289e4cb78ab0df80f72025-08-20T02:44:20ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382007-04-012510.1260/026361707782398245An IGC Study of the Role of Washing Procedures on the Adsorption Properties of Activated CarbonsEva DíazSalvador OrdóñezAurelio VegaInverse gas chromatography (IGC) was used to study the influence of different washing treatments (acid, basic and combined washings) on the adsorption properties of two different activated carbons (steam- and chemically-activated). Chemical and textural characterization was carried out by the use of nitrogen adsorption, ICP-MS and temperature programmed desorption methods. The adsorption capacity and the interaction strength (sub-divided into dispersive and specific components) were determined by IGC. Washing procedures (especially those involving acid washing) removed mineral ash almost completely from the carbon samples studied. The steam-activated carbon exhibited the best adsorptive behaviour. The removal of mineral ash enhanced the adsorption of the compounds studied, especially alkanes. Washing procedures also modified the chemical structures of the organic functionalities, but this did not appear to be relevant as far as the adsorption properties of these materials were concerned.https://doi.org/10.1260/026361707782398245 |
| spellingShingle | Eva Díaz Salvador Ordóñez Aurelio Vega An IGC Study of the Role of Washing Procedures on the Adsorption Properties of Activated Carbons Adsorption Science & Technology |
| title | An IGC Study of the Role of Washing Procedures on the Adsorption Properties of Activated Carbons |
| title_full | An IGC Study of the Role of Washing Procedures on the Adsorption Properties of Activated Carbons |
| title_fullStr | An IGC Study of the Role of Washing Procedures on the Adsorption Properties of Activated Carbons |
| title_full_unstemmed | An IGC Study of the Role of Washing Procedures on the Adsorption Properties of Activated Carbons |
| title_short | An IGC Study of the Role of Washing Procedures on the Adsorption Properties of Activated Carbons |
| title_sort | igc study of the role of washing procedures on the adsorption properties of activated carbons |
| url | https://doi.org/10.1260/026361707782398245 |
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