Changes in the Adsorption Properties of Activated Carbon due to Partial Oxidation of the Surface
The textural properties (surface area and porosity) of activated carbons change upon treatment with oxidizing solutions. The extent of this change is related to the strength of the oxidizing agent. Oxidation also changes the chemistry of the surface by forming carbon–oxygen groups which are the site...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
1995-09-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/026361749501200305 |
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| _version_ | 1832544662379823104 |
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| author | A.M. Youssef A.A. El-Khouly A.I. Ahmed E.I. El-Shafey |
| author_facet | A.M. Youssef A.A. El-Khouly A.I. Ahmed E.I. El-Shafey |
| author_sort | A.M. Youssef |
| collection | DOAJ |
| description | The textural properties (surface area and porosity) of activated carbons change upon treatment with oxidizing solutions. The extent of this change is related to the strength of the oxidizing agent. Oxidation also changes the chemistry of the surface by forming carbon–oxygen groups which are the sites upon which the initial adsorption of water vapour takes place. The adsorption of water vapour at 300–320 K is mainly physical and the isosteric heat of adsorption decreases continuously as the surface coverage increases. The entropy of adsorption of water vapour on untreated and oxidized carbons, at different adsorption temperatures, has been calculated. |
| format | Article |
| id | doaj-art-0da455244c404c0ab94bbd14e1c802ae |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 1995-09-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-0da455244c404c0ab94bbd14e1c802ae2025-02-03T10:07:34ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40381995-09-011210.1177/026361749501200305Changes in the Adsorption Properties of Activated Carbon due to Partial Oxidation of the SurfaceA.M. Youssef0A.A. El-Khouly1A.I. Ahmed2E.I. El-Shafey3Chemistry Department, Faculty of Science, University of Mansoura, Mansoura, Egypt.Chemistry Department, Faculty of Science, University of Mansoura, Mansoura, Egypt.Chemistry Department, Faculty of Science, University of Mansoura, Mansoura, Egypt.Chemistry Department, Faculty of Science, University of Mansoura, Mansoura, Egypt.The textural properties (surface area and porosity) of activated carbons change upon treatment with oxidizing solutions. The extent of this change is related to the strength of the oxidizing agent. Oxidation also changes the chemistry of the surface by forming carbon–oxygen groups which are the sites upon which the initial adsorption of water vapour takes place. The adsorption of water vapour at 300–320 K is mainly physical and the isosteric heat of adsorption decreases continuously as the surface coverage increases. The entropy of adsorption of water vapour on untreated and oxidized carbons, at different adsorption temperatures, has been calculated.https://doi.org/10.1177/026361749501200305 |
| spellingShingle | A.M. Youssef A.A. El-Khouly A.I. Ahmed E.I. El-Shafey Changes in the Adsorption Properties of Activated Carbon due to Partial Oxidation of the Surface Adsorption Science & Technology |
| title | Changes in the Adsorption Properties of Activated Carbon due to Partial Oxidation of the Surface |
| title_full | Changes in the Adsorption Properties of Activated Carbon due to Partial Oxidation of the Surface |
| title_fullStr | Changes in the Adsorption Properties of Activated Carbon due to Partial Oxidation of the Surface |
| title_full_unstemmed | Changes in the Adsorption Properties of Activated Carbon due to Partial Oxidation of the Surface |
| title_short | Changes in the Adsorption Properties of Activated Carbon due to Partial Oxidation of the Surface |
| title_sort | changes in the adsorption properties of activated carbon due to partial oxidation of the surface |
| url | https://doi.org/10.1177/026361749501200305 |
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