Adsorption and Thermal Desorption Behaviour of Asphalt-like Functionalities on Silica
The adsorption and thermal desorption behaviours of seven model compounds containing asphalt-like functionalities were studied on silica. Adsorption isotherms of the model compounds were examined at 25°C and analyzed via the Langmuir isotherm. A series of temperature-programmed desorption (TPD) expe...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2000-10-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263617001493729 |
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| _version_ | 1841564440589238272 |
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| author | Sangkwon Park Myung-Chan Jo Jun-Boum Park |
| author_facet | Sangkwon Park Myung-Chan Jo Jun-Boum Park |
| author_sort | Sangkwon Park |
| collection | DOAJ |
| description | The adsorption and thermal desorption behaviours of seven model compounds containing asphalt-like functionalities were studied on silica. Adsorption isotherms of the model compounds were examined at 25°C and analyzed via the Langmuir isotherm. A series of temperature-programmed desorption (TPD) experiments was also conducted on the silica samples, the activation energy for desorption (E d ) being determined by conventional TPD analysis. The adsorption and thermal desorption behaviours were correlated in terms of the activation energy (E d tot ) for complete desorption. Dimethyl sulphoxide showed the strongest adsorption and the largest value for E d tot , implying that the high energy consumption necessary to desorb such functionalities plays a key role in the durability of asphalt–aggregate bonding. |
| format | Article |
| id | doaj-art-063b356b7e1e4689b70b570b71c4ef3e |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2000-10-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-063b356b7e1e4689b70b570b71c4ef3e2025-01-02T22:39:32ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382000-10-011810.1260/0263617001493729Adsorption and Thermal Desorption Behaviour of Asphalt-like Functionalities on SilicaSangkwon Park0Myung-Chan Jo1Jun-Boum Park2 Department of Chemical Engineering, Dongguk University, Choong-Gu, Pil-Dong 3-26, Seoul 100-715, Korea Department of Chemical Engineering, Dongseo University, Pusan 617-716, Korea Department of Civil Engineering, Seoul National University, Seoul 151-742, KoreaThe adsorption and thermal desorption behaviours of seven model compounds containing asphalt-like functionalities were studied on silica. Adsorption isotherms of the model compounds were examined at 25°C and analyzed via the Langmuir isotherm. A series of temperature-programmed desorption (TPD) experiments was also conducted on the silica samples, the activation energy for desorption (E d ) being determined by conventional TPD analysis. The adsorption and thermal desorption behaviours were correlated in terms of the activation energy (E d tot ) for complete desorption. Dimethyl sulphoxide showed the strongest adsorption and the largest value for E d tot , implying that the high energy consumption necessary to desorb such functionalities plays a key role in the durability of asphalt–aggregate bonding.https://doi.org/10.1260/0263617001493729 |
| spellingShingle | Sangkwon Park Myung-Chan Jo Jun-Boum Park Adsorption and Thermal Desorption Behaviour of Asphalt-like Functionalities on Silica Adsorption Science & Technology |
| title | Adsorption and Thermal Desorption Behaviour of Asphalt-like Functionalities on Silica |
| title_full | Adsorption and Thermal Desorption Behaviour of Asphalt-like Functionalities on Silica |
| title_fullStr | Adsorption and Thermal Desorption Behaviour of Asphalt-like Functionalities on Silica |
| title_full_unstemmed | Adsorption and Thermal Desorption Behaviour of Asphalt-like Functionalities on Silica |
| title_short | Adsorption and Thermal Desorption Behaviour of Asphalt-like Functionalities on Silica |
| title_sort | adsorption and thermal desorption behaviour of asphalt like functionalities on silica |
| url | https://doi.org/10.1260/0263617001493729 |
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